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MMHS MMHS Anatomy and Physiology Anatomy and Physiology

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Page 1: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

MMHS MMHS

Anatomy and PhysiologyAnatomy and Physiology

Page 2: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight
Page 3: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

600 muscles in the human body600 muscles in the human bodyMakes up 40% of the body weightMakes up 40% of the body weight3 main types that make up the human 3 main types that make up the human

bodybodyViewed as “the machines” of the bodyViewed as “the machines” of the bodyPrefixes associated with musclesPrefixes associated with muscles

myo- and mys- = “muscle”Sarco = “Flesh”Globin = “protein”

Page 4: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

Muscles can only contract or shorten. Muscles can’t PUSH, they only PULL.Muscle occur in opposing pairs.

Prime Mover:Prime Mover: causes the main movement. Antagonist:Antagonist: opposes or reverses a movement.

ExampleExample:: The Prime Mover is the biceps brachiibiceps brachii and the Antagonist is the triceps brachiitriceps brachii..

Body building adds very little new muscle but instead adds filaments and fluid.

(these additions make muscles work more (these additions make muscles work more efficiently).efficiently).

Page 5: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

1. Skeletal or Striated Musclea) Long and cylindrical with many nuclei

(=multinucleate)b) Under both Voluntary and Involuntary Movement

Tendons attach muscle to bone at 2 points.a)a) Origin:Origin: stationary muscle point (anchor)b)b) InsertionInsertion: movable attachment point

Skeletal Muscles occur in pairs that have opposing motion.

a)a) FlexorsFlexors: : decrease the angle between parts.b)b) Extensors:Extensors: increase the angle between parts.

ExampleExample: The biceps brachii is the flexor and the triceps brachii is the extensor.

Page 6: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight
Page 7: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

4 Main Properties of Skeletal Muscles

1.Contractibility: shorten with force.shorten with force.

2.Elasticity: will return to its original form.will return to its original form.

3.Excitability: responds to a stimulus (nerve)responds to a stimulus (nerve)

4.Extensibility: can be stretched.can be stretched.

Page 8: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

2. Smooth Muscle

a.a. Spindle-shaped with 1 nucleus Spindle-shaped with 1 nucleus (uninucleate)(uninucleate)

b.b. Involuntary MovementInvoluntary Movement

c.c. Located in digestive, urinary tracts, and Located in digestive, urinary tracts, and vascular system.vascular system.

PeristalsisPeristalsis:: the term for the rhythmic, the term for the rhythmic, synchronized contraction of smooth synchronized contraction of smooth muscle.muscle.

Page 9: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight
Page 10: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

3. Cardiac or Myocardium

a)a) Found only in heart tissue.Found only in heart tissue.

b)b) Striated with 1 nucleus and intercalated Striated with 1 nucleus and intercalated discs.discs.

c)c) Involuntary (about 86,400 beats/day)Involuntary (about 86,400 beats/day)

d)d) Pacemakers (SA node of right atrium) Pacemakers (SA node of right atrium) artificially controls the rhythm of the heart.artificially controls the rhythm of the heart.

Page 11: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight
Page 12: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

YOGA

Page 13: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

Capoeira

Page 14: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

Capoeira

Page 15: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

Surfing

http://www.wahinesurfing.com/gal/pictures/SerenaBrookeTostee.jpg
Page 16: MMHS Anatomy and Physiology. 600 muscles in the human body 600 muscles in the human body Makes up 40% of the body weight Makes up 40% of the body weight

ClimbingClimbing


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