unit 3 dry lab 3 - eccles library 3 dry lab... · posterior auricular superficial temporal...
TRANSCRIPT
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Gross Anatomy
Dry Lab #3
Clinical Correlates
David Mabey
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Carotid Endarterectomy
Landmarks
Layers
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IJV
Carotid a.
Vagus n.
Carotid
sheath
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IJV
Carotid a.
Vagus n.
Carotid
sheath
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Carotid Endarterectomy
Landmarks
Layers
Complications
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S
A
L
F
O
P
S
Max
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Superior thyroid
Ascending pharyngeal
Lingual
Facial
Occipital
Posterior auricular
Superficial temporal
Maxillary
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Thyroidectomy
Landmarks
Complications
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Internal laryngeal n.
Superior laryngeal a.
Inferior thyroid a.
Inferior (recurrent)
laryngeal n.
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Internal laryngeal n .Internal laryngeal n .
Superior laryngeal a.Superior laryngeal a.
Inferior thyroid a.Inferior thyroid a.
Inferior (recurrent)Inferior (recurrent)
laryngeal n.laryngeal n.
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Thyroidectomy
Landmarks
Thyroid cartilage, cricothyroid membrane
Complications
Recurrant laryngeal nerve injury
Superior laryngeal nerve injury
Hypoparathyroidism
Thyrotoxic storm
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Scalp Incisions
Layers-SCALP
Aponeurosis (Galea) is the strength layer
What do we worry about?
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Dural Venous Sinuses
Superior Sagittal Sinus
Where is it?
Problems
Thrombosis
Surgery
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Superior
sagittal sinus
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Dural Venous Sinuses
Cavernous Sinus
Where is it?
Anatomy
Cavernous sinus syndrome
Causes-aneurism, tumor, inflammation,
infection
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Cavernous sinus
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Cavernous sinus
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Dural Venous Sinuses
Cavernous Sinus
Cavernous carotid artery aneurism
(CCAA)
Carotid-cavernous fistula
Causes-ruptured CCAA or trauma
Presents with HA, cavernous sinus
syndrome
Pupil?
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ICA
CN VI
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Hydrocephalus
Two types: communicating and
obstructive
Communicating-inadequate resorption of
CSF, usually at arachnoid villi
Causes: subarachnoid hemorrhage,
meningitis
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Hydrocephalus-obstructive
As the name implies, this is caused by
an obstruction of CSF flow
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Hydrocephalus-obstructive
Sites of obstruction
Interventricular foramen
The cerebral aqueduct
Fourth ventricle obstruction
The medial and lateral apertures
Causes?
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Hemifacial Spasm
Involuntary facial contractions caused
by compression of facial nerve by a
vessel
Which one?
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Hemifacial Spasm
Involuntary facial contractions caused
by compression of facial nerve by a
vessel
Which one?
Usually AICA
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Horner’s Syndrome
Symptoms-know the affected nerves
Ptosis
Miosis
Anhydrosis
Causes?
Pancoast tumor at apex of lung
Lateral medullary syndrome
Cluster headache
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Primary Amoebic
Meningoencephalitis
Caused by Naegleria fowleri
Symptoms: Severe HA, fever, stiffneck, nausea, vomiting, seizures,hallucinations, death
Very specific conditions requiredMust be present in water
Water must be >80° F
Amoeba must get up the nose
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Cranial Nerve Review
Neurologic Exam