bones , articulations and muscles of the...
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1.1. Bones, articulations and muscles Bones, articulations and muscles ofof thethe vertebralvertebral columncolumn –– anan overviewoverview
2.2. Bones, articulations and muscles Bones, articulations and muscles of the thorax of the thorax –– an overviewan overview
3.3. Bones, articulations and muscles Bones, articulations and muscles of the upper limb of the upper limb –– an overviewan overview
4.4. Bones, articulations and muscles Bones, articulations and muscles of the lower limb of the lower limb –– an overviewan overview
5.5. Bones, articulations and muscles Bones, articulations and muscles of the cranium of the cranium –– an overviewan overview
BONESBONES, , ARTICULATIONS AND ARTICULATIONS AND MUSCLESMUSCLES OF THE HUMAN BODYOF THE HUMAN BODY
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Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov 22
Human skeletonHuman skeleton , , skeletonskeleton
�� Axial skeletonAxial skeleton::
��Vertebral column (spine)Vertebral column (spine), ,
columna vertebraliscolumna vertebralis
• 33 vertebra, vertebraevertebrae
��Rib cage, Rib cage, thoraxthorax
• ribs, costaecostae
• sternum, sternumsternum
• thoracic vertebrae,
vertebrae thoracicaevertebrae thoracicae
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Vertebrae, Vertebrae, vertebrae vertebrae (Gr(Gr. . spondylosspondylos))� 32-34 vertebrae:
�24 articulating vertebrae, vertebrae verae:vertebrae verae:
• cervical vertebrae – 7
• thoracic vertebrae – 12
• lumbar vertebrae – 5
�9 fused vertebrae, vertebrae spuriae:vertebrae spuriae:
• sacrum, os sacrum
• tailbone, coccyx, os coccygis
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Structure of a typical vertebraStructure of a typical vertebra� Parts of the vertebra:
�body, corpus vertebraecorpus vertebrae� vertebral arch, arcus vertebraearcus vertebrae�7 processes, processusprocessus:
• 4 articular – processus articularis processus articularis (zygapophysis) superior et inferior(zygapophysis) superior et inferior
• 2 transverse – processus transversiprocessus transversi• spinous – processus spinosusprocessus spinosus
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Sacral and coccygeal vertebraeSacral and coccygeal vertebrae� Sacrum, os sacrumos sacrum
� Tailbone, os coccygis (coccyx)os coccygis (coccyx)� formed of rudimentary vertebrae� varying in number vertebrae – 3-5�usually fused in middle age ~ 30 years
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Articulations of the vertebral columnArticulations of the vertebral column , , articulationes vertebralesarticulationes vertebrales
� Types of articulations:� syndesmoses� syndchondroses� synostoses�articulations
(synovial joints)
� a series of joints between the:� vertebral bodies� vertebral arches� vertebral processes
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Vertebral column as a wholeVertebral column as a whole ,,columna vertebraliscolumna vertebralis
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
� average length – 60-70 сm, 2/5 of the human height
� double S-shape:� evolutionary trend,
in primates – single S-shaped�� lordosislordosis, cervical and lumbar�� kyphosis kyphosis (Gr. kyphos, a hump)
roundbackroundback, thoracic and sacral�� scoliosis scoliosis (Gr. σκολίωσις, obliquity)
• physiological• pathological
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Biomechanics of the spinal column Biomechanics of the spinal column
� three types of spinal movements:� in the sagittal plane:
•• flexion and extension flexion and extension ~160º� in the frontal plane:
•• lateral bending lateral bending ~100º� along the longitudinal axis:
•• rotation rotation up to 180º
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� 12 pairs:� “true ribs”, costae veraecostae verae� “false ribs”, costae spuriaecostae spuriae� floating ribs, costae fluctuantescostae fluctuantes
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Ribs, Ribs, costae costae (types)(types)
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Ribs, Ribs, costae costae (parts)(parts)
� Costal part, os costaleos costale ((costa)costa):�head, caput costaecaput costae�neck, collum costae collum costae � shaft or body, corpus costae corpus costae � angle, angulus costae
� Costal cartilage, cartilago costaliscartilago costalis:� rib cartilage � hyaline cartilage
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Breastbone, Breastbone, sternum sternum (parts)(parts)� manubrium,
manubruim sternimanubruim sterni� body, corpus sternicorpus sterni
� xiphoid process, proc. xiphoideusproc. xiphoideus
�� synchondrosis synchondrosis manubriosternalismanubriosternalis
�� synchondrosis synchondrosis xiphosternalisxiphosternalis
�� synostosis synostosis –– united by the age of twenty-five
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Articulations of the thoraxArticulations of the thorax , , articulationes thoracis (1)articulationes thoracis (1)
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
�� Costovertebral joints, Costovertebral joints, ArticulationesArticulationes costovertebralescostovertebrales::
�� articulatio capitis costaearticulatio capitis costae
�� articulatio costotransversariaarticulatio costotransversaria
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Articulations of the thoraxArticulations of the thorax , , articulationes thoracis (2)articulationes thoracis (2)
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
�� Sternocostal joints, Sternocostal joints, Articulationes sternocostalesArticulationes sternocostales::�� synchondrosis costae Isynchondrosis costae I
�� articulationes sternocostales articulationes sternocostales –ribs 2-5 (hemiarthroses)
�� synchondroses sternocostales synchondroses sternocostales –ribs 6 and 7
�� articulationes interchondrales articulationes interchondrales –ribs 6-10
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The thorax as a wholeThe thorax as a whole ,, thorax thorax (cavea, cavitas thoracis)(cavea, cavitas thoracis)
� barrel-shaped� narrower above than below, and compressed antero-posteriorly� defends the principal organs and vessels in the thoracic cavity
�� apertura thoracis superior et inferiorapertura thoracis superior et inferior�� arcus costalis arcus costalis �� angulus infrasternalis angulus infrasternalis
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Biomechanics Biomechanics of the thoraxof the thorax
� combined joints� common axis of motion:�� upper ribs upper ribs �� anterioranterior--posteriorposterior diameterdiameter�� lower ribs lower ribs �� transverse diameter of the thoraxtransverse diameter of the thorax
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Bones of the headBones of the head , , skullskull , , craniumcranium
�� Skull Skull –– 22 22 bonesbones, , ossa craniiossa cranii::
�� braincasebraincase, , cranium cerebrale cranium cerebrale (neurocranium)(neurocranium):: twice larger
• paired and unpaired bones
• desmal, chondral and mixed ossification
�� facial skeletonfacial skeleton, , cranium faciale cranium faciale (viscerocranium)(viscerocranium)::
�mostly paired boned
�unpaired bones: o mandible and vomer
�desmal ossification
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�� Paired bonesPaired bones:� nasal bone,
os nasaleos nasale� lacrimal bone,
os lacrimaleos lacrimale� zygomatic bone,
os zygomaticumos zygomaticum� maxillary bone,
maxilla maxilla ��os incisivum os incisivum (os (os ‘‘GoetheGoethe’’))
� palatine bone, os palatinumos palatinum
� inferior nasal concha, concha nasalis inferiorconcha nasalis inferior
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Bones of the facial skeletonBones of the facial skeleton , , viscerocraniumviscerocranium
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Bones of the facial skeletonBones of the facial skeleton , , viscerocraniumviscerocranium�� Unpaired bonesUnpaired bones:
�mandible, mandibulamandibula
� vomer, vomervomer
�hyoid bone, os hyoideumos hyoideum
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Temporomandibular joint, articulatio temporomandibularis
�� Articular surfaces and ligamentsArticular surfaces and ligaments
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Biomechanics of the Biomechanics of the temporomandibular jointtemporomandibular joint
�� Movements and dislocation of the temporomandibular jointMovements and dislocation of the temporomandibular joint
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Bones of the upper limbBones of the upper limb ,,ossa membri superiorisossa membri superioris� Bones of the shoulder girdle,
cingulum pectoralecingulum pectorale::� clavicle, , claviculaclavicula� shoulder blade,, scapulascapula
� Bones of the skeleton of upper limbs, pars libera membri superioris:pars libera membri superioris:� arm, brachiumbrachium:
• humerus, humerushumerus� forearm, antebrachiumantebrachium:
• elbow bone, ulnaulna• radial bone, radiusradius
� hand, manusmanus:• carpal bones, ossa carpiossa carpi• metacarpal bones, ossa metacarpiossa metacarpi• finger bones, phalanges
ossa digitorum manus (phalanges)ossa digitorum manus (phalanges)
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Bones of the armBones of the arm ,, ossa brachiiossa brachii�� HumerusHumerus, , humerushumerus
� articular head
� greater and lesser tubercle
� anatomical and surgical neck
� capitulum humeri
� trochlea
� medial epycondyle
� lateral epycondyle
� olecranon fossa
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Bones of the forearmBones of the forearm ,,ossa antebrachiiossa antebrachii� Elbow bone, ulnaulna
� Radial bone, radiusradius
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Bones of the handBones of the hand ,, ossa manusossa manus�� Carpal bonesCarpal bones, ,
ossa carpi (carpalia)ossa carpi (carpalia)
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Bones of the handBones of the hand ,, ossa manusossa manus�� Metacarpal bonesMetacarpal bones, ,
ossa metacarpi ossa metacarpi (metacarpalia)(metacarpalia)
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Bones of the handBones of the hand ,, ossa manusossa manus�� Finger bonesFinger bones, ,
ossa digitorum (phalanges)ossa digitorum (phalanges)
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Joints of the pectoral girdleJoints of the pectoral girdle , , articulationes cinguli pectoralisarticulationes cinguli pectoralis
�� Sternoclavicular jointSternoclavicular joint, , art. sternoclavicularisart. sternoclavicularis
�� Acromioclavicular jointAcromioclavicular joint, , art. acromioclavicularisart. acromioclavicularis
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Joints of the upper limbJoints of the upper limb , , articulationes membri superioris liberiarticulationes membri superioris liberi
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�� Humeral (shoulder) jointHumeral (shoulder) joint, , art. humeriart. humeri
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The radioThe radio --ulnar jointsulnar joints , , articulationes antebrachiiarticulationes antebrachii
� Radio-ulnar joints:�� proximal radioproximal radio--ulnar jointulnar joint
��middle radiomiddle radio--ulnar jointulnar joint
�� distal radiodistal radio--ulnar jointulnar joint
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�� Cubital (elbow) jointCubital (elbow) joint, , art. cubitiart. cubiti
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Joints of the handJoints of the hand , , articulationes manusarticulationes manus
� Carpal joints, articulationes carpiarticulationes carpi:� radiocarpal (wrist) joint,
art. radiocarpalis (radiocarpea)art. radiocarpalis (radiocarpea)�� intercarpal jointsintercarpal joints� midcarpal joint,
art. mediocarpalis (mediocarpea)art. mediocarpalis (mediocarpea)
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Joints of the handJoints of the hand , , articulationes manusarticulationes manus
� Carpometacarpal joints, articulationes carpometacarpalesarticulationes carpometacarpales:� common carpometacarpal joint,
art. carpometacarpalis communisart. carpometacarpalis communis� carpometacarpal joint of the thumb,
art. carpometacarpalis pollicisart. carpometacarpalis pollicis
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Joints of the fingersJoints of the fingers , , articulationes articulationes digitorum manusdigitorum manus
�matacarpophalangeal joints, art. metacarpophalangealesart. metacarpophalangeales� interphalangeal joints, art. interphalangeales manusart. interphalangeales manus
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Bones of the lower limbBones of the lower limb ,,ossa membri inferiorisossa membri inferioris
� Skeleton of the pelvic girdle,cingulum pelvicumcingulum pelvicum::� sacrum, , osos sacrumsacrum� innominate (hip) bone,, os coxae (pelvicum)os coxae (pelvicum)
� Skeleton of the free lower limb,pars libera membri inferioris:pars libera membri inferioris:
� thigh, femurfemur:• thigh bone, femus (os femoris)femus (os femoris)
• kneecap, patella
� leg, cruscrus:• tibia, tibiatibia
• fibula, fibulafibula
� foot, pespes:• tarsal bones, ossa tarsi (tarsalia)ossa tarsi (tarsalia)
• metatarsal bones, ossa metatarsi (metatarsalia)ossa metatarsi (metatarsalia)
• phalanges of the foot, ossa digitorum pedis, phalangesossa digitorum pedis, phalanges
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Bones of the pelvic girdleBones of the pelvic girdle , , ossa cinguli pelviciossa cinguli pelvici� hip bone, os coxaeos coxae
� chondral osteogenesis: united by bone at 15-16 years
� the ilium, os ilii (ilium)os ilii (ilium)� the ischium,
os ischii (ischium)os ischii (ischium)� the pubis, os pubisos pubis
� the sacrum, os sacrumos sacrum
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Bones of the thighBones of the thigh ,,ossa femorisossa femoris
� Thigh bone, femurfemur
� Kneecap, patellapatella
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Bones of the legBones of the leg ,, ossa crurisossa cruris
� The tibia, tibiatibia
� The fibula, fibulafibula
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Bones of the footBones of the foot ,, ossa pedisossa pedis� Tarsal bones,
ossa tarsi (tarsalia):ossa tarsi (tarsalia):� the talus,
talustalus
� the calcaneus, calcaneuscalcaneus
� the navicular bone, os naviculareos naviculare
� the cuneiform bones, ossa cuneiformiaossa cuneiformia
� the cuboid bone, os cuboideumos cuboideum
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Bones of the footBones of the foot ,, ossa pedisossa pedis� Metatarsal bones,
ossa metatarsi (metatarsalia)ossa metatarsi (metatarsalia)
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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3939
Bones of the footBones of the foot ,, ossa pedisossa pedis� The phalanges of the foot,
ossa digitorum pedis (phalanges)ossa digitorum pedis (phalanges)
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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4040
Joints of the pelvic girdleJoints of the pelvic girdle , , articulationes cinguli pelviciarticulationes cinguli pelvici
� The pubic symphysis, symphisis pubicasymphisis pubica
� The sacro-iliac joint, art. sacroiliacaart. sacroiliaca
� The sacro-coccygeal joint,articulatio sacrococcygeaarticulatio sacrococcygea
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Joints of the free lower limbJoints of the free lower limb , , articulationes membri inferioris liberiarticulationes membri inferioris liberi
� The hip (coxal) joint, art. coxaeart. coxae
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Joints of the legJoints of the leg , , articulationes crurisarticulationes cruris
� The knee (genual) joint, art. genusart. genus
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Tibiofibular articulationsTibiofibular articulations
� The tibiofibular articulations:�� superior tibiofibular jointsuperior tibiofibular joint
�� crural interosseous membranecrural interosseous membrane
�� inferior tibiofibular jointinferior tibiofibular joint
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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TalocruralTalocrural ((ankleankle ) ) joint, joint, articulatio talocruralisarticulatio talocruralis
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Joints of the footJoints of the foot , , articulationes pedisarticulationes pedis
� Intertarsal joints, art. talocalcaneonavicularisart. talocalcaneonavicularis:� subtalar (talocalcanean) joint,
art. subtalaris (talocalcanea)art. subtalaris (talocalcanea)� talocalcaneonavicular joint,
art. talocalcaneonavicularisart. talocalcaneonavicularis
�� calcaneocuboid jointcalcaneocuboid joint�� cuneonavicular jointcuneonavicular joint
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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4646
Joints of the footJoints of the foot , , articulationes pedisarticulationes pedis
� The tarsometatarsal articulations, articulationes tarsometatarsalesarticulationes tarsometatarsales
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Joints of the phalanges of the footJoints of the phalanges of the foot , , articulationes digitorum pedisarticulationes digitorum pedis
�metatarsophalangeal articulations, art. metatarsophalangealesart. metatarsophalangeales� interphalangeal articulations, art. interphalangeales pedisart. interphalangeales pedis
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Special myologySpecial myology� Muscles of the trunk:
� muscles of the back� muscles of the neck� muscles of the thorax� muscles of the abdomen� muscles of the pelvis and peritoneum
� Muscles of the head� Muscles of the upper limb:
� muscles of the shoulder girdle� muscles of the free upper limb
� Muscles of the lower limb: � muscles of the pelvic girdle� muscles of the free lower limb
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Muscles of the back, Muscles of the back, musculi dorsimusculi dorsi� superficial muscles of the back:
� derived from ventral myotomes(hypomerehypomere)
� no segmental arrangement� innervation from the ventral rami
of the spinal nerves
� deep muscles of the back:� of ventral origin:
• derived from ventral myotomes• innervation from ventral rami
of the spinal nerves
� of dorsal origin, true or autochthonous back muscles:
• origin – dorsal myotomes (epimereepimere)
• innervation from dorsal rami of the spinal nerves
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Muscles of the neck, Muscles of the neck, musculi collimusculi colli
�� superficialsuperficial muscles
�� hyoid hyoid muscles:� suprahyoid muscles
� infrahyoid muscles(autochthonous neck muscles)
�� deepdeep muscles(autochthonous muscles):� scaleni muscles
(modified intercostal muscles)
�anterior vertebral muscles
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Muscles of the thoraxMuscles of the thorax , , mm. thoracismm. thoracis
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
� Superficial group –thoracic muscles of the shoulderthoracic muscles of the shoulder��m. pectoralis majorm. pectoralis major��m. pectoralis minorm. pectoralis minor��m. serratus anteriorm. serratus anterior��m. subclaviusm. subclavius
� Deep group – true, autochthonous autochthonous thoracicthoracic musclesmuscles��mm. intercostalesmm. intercostales ––
external, internal and intimalexternal, internal and intimal��m. transversus thoracism. transversus thoracis��mm. subcostalesmm. subcostales
�� DiaphragmDiaphragm
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Muscles of the abdomenMuscles of the abdomen , , mm. abdominismm. abdominis
�� Anterior abdominal muscles:Anterior abdominal muscles:�� the rectus abdoministhe rectus abdominis
�� the pyramidalisthe pyramidalis
�� LateralLateral abdominal muscles:abdominal muscles:�� externalexternal abdominal obliqueabdominal oblique
�� internalinternal abdominal obliqueabdominal oblique
�� transversus abdoministransversus abdominis
�� Posterior abdominal Posterior abdominal muscles:muscles:�� quadratus lumborum musclequadratus lumborum muscle
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Muscles of the head, Muscles of the head, musculi capitismusculi capitis
�� Masticatory Masticatory muscles�� Mimic Mimic muscles – groups:
� scalp and auricular groups�orbital group�oral and nasal groups
�� Deep occipital musclesDeep occipital muscles�� Muscles of theMuscles of the::
�eye�middle ear� tongue� soft palate and pharynx
�� Suprahyoid musclesSuprahyoid muscles
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov 5353
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Muscles of mastication, Muscles of mastication, mm. masticatoriimm. masticatorii
�� Masticatory musclesMasticatory muscles:
� origin from different parts of the skull
� attached to the mandible
� derived from the first branchial (pharyngeal) arch
� nerve supply by the homonymous branches of the mandibular nerve (trigeminal nerve)
� concerned with the movements of the mandible in mastication (and speech)� jaw-closing muscles
� primary and accessory muscles of mastication
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�� Masseter muscleMasseter muscle, , m. masseterm. masseter� Temporal muscle,
m. temporalism. temporalis� Medial pterygoid muscle,
m. pterygoideus medialism. pterygoideus medialis� Lateral pterygoid muscle,
m. pterygoideus lateralism. pterygoideus lateralis
Muscles of mastication, Muscles of mastication, mm. masticatoriimm. masticatorii
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov 5555
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5656
Facial musclesFacial muscles , , mm. faciales mm. faciales
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
�� Mimic musclesMimic muscles:� located on the skull vault and face� surround the orifices of the face:
the mouth, nostrils, eyes and ears � sphincters and dilators
� insert directly into the skin� innervated by the facial nerve� cause the skin to move
� muscles of facial expression� important role in eating and speaking
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5757Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
Muscles of the upper limbMuscles of the upper limb�� InnervationInnervation –– brachial plexusbrachial plexus (C(C55--ThTh11))� According to their positionposition::
�� muscles of the shouldermuscles of the shoulder::• deltoideus• subscapularis• supraspinatus and infraspinatus• teres major and teres minor
�� muscles of the arm muscles of the arm –– brachial musclesbrachial muscles:• anterior group – flexors• posterior group – extensors
�� muscles of the forearmmuscles of the forearm::• anterior (flexor/pronator) group• lateral group• posterior (extensor/pronator) group
�� muscles of the handmuscles of the hand::• muscles of the thumb (thenar)• muscles of the little finger (hypothenar)• muscles in the middle of the palm
� According to their functionfunction::�� ventral groupventral group –– flexorsflexors�� dorsal groupdorsal group –– extensorsextensors
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Muscles of the lower limbMuscles of the lower limb�� InnervationInnervation –– lumbosacral plexuslumbosacral plexus (L(L11--SS33))� According to their positionposition::
�� muscles around the hip jointmuscles around the hip joint::• internal and external pelvic muscles• anterior and posterior groups
�� muscles of the thighmuscles of the thigh:• anterior compartment• posterior compartment• medial compartment
�� muscles of the legmuscles of the leg::• anterior compartment• lateral (peroneal) compartment• posterior compartment
�� muscles of the footmuscles of the foot::• muscles on the dorsal side of the foot• plantar muscles
– medial compartment– lateral compartment– middle compartment
� According to their functionfunction::�� ventral groupventral group –– flexorsflexors�� dorsal groupdorsal group –– extensorsextensors
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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Functional anatomy of the footFunctional anatomy of the foot�� Arches of the foot:Arches of the foot:
� transversal arch� longitudinal arch – medial and lateral
Prof. Dr. Nikolai LazarovProf. Dr. Nikolai Lazarov
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6060Thank youThank you……