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Anatomy Flashcards

1
Q

Loss of forearm pronation

A

Median n.

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2
Q

CN 1 exits skull via

A

Cribiform plate

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3
Q

CN 2 exits skull via

A

optic canal

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4
Q

CN 3 exits skull via

A

Superior orbital fissure

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5
Q

CN 4 exits skull via

A

Superior orbital fissure

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6
Q

CN 5-1 exits skull via

A

Superior orbital fissure

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7
Q

CN 5-2 exits skull via

A

Foramen Rotundum

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8
Q

CN 5-3 exits skull via

A

Foramen ovale

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9
Q

CN 6 exits skull via

A

Superior orbital fissure

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10
Q

CN 7 exits skull via

A

Internal acoustic meatus

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11
Q

CN 8 exits skull via

A

Internal acoustic meatus

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12
Q

CN 9 exits skull via

A

Jugular foramen

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13
Q

CN 10 exits skull via

A

Jugular foramen

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14
Q

CN 11 exits skull via

A

Jugular foramen

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15
Q

CN 12 exits skull via

A

Hypoglossal canal

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16
Q

Occlusion of what a. may result in CN12 lesion

A

ASA infarct

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17
Q

Occlusion of what a. may result in CN9-11 lesion

A

PICA infarct

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18
Q

CN12 lesion, the tongue deviates

A

toward the lesion

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19
Q

CN10 lesion, the uvula deviates

A

away from the lesion

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20
Q

Light shone into the Left eye–> neither pupil constricts

Light shone into the Right eye –> both pupils constrict

A

Afferent pupillary defect –> CN2 lesion

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21
Q

Light shone into the Left eye–> Left pupil doesn’t constrict
Light shone into the Right eye –> Left pupil doesn’t constrict

A

Efferent pupillary defect –> CN3 lesion

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22
Q

What a. is occluded in homonymous hemianopsia w/ macular sparing?

A

PCA

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23
Q

Boundaries of the femoral triangle

A

Adductor longus, Sartorius, & inguinal ligament

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24
Q

Carpal bones (proximal L -> M, distal L -> M)

A

Scaphoid, Lunate, Triquetrum, Pisiform,

Trapezium, Trapezoid, Capitate, Hamate

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25
Contents of carpal tunnel
4 flexor digitorum profundus tendons 4 flexor digitorum superficialis tendons Flexor pollicis longus tendon Median n.
26
Colles fracture
"Fall on an outstretched hand" | Fx of the distal radius -> posterior displacement of the distal fragment
27
A. injured in a surgical neck of the humerus Fracture
posterior circumflex a.
28
A. injured in a supracondylar fracture of the humerus
brachial a.
29
A. injured in a midshaft fracture of the humerus
Profunda brachii a.
30
Closure of the PDA results in what adult structure?
Ligamentum arteriosum
31
What a. is derived from the 1st aortic arch?
part of the maxillary a.
32
What a. is derived from the 2nd aortic arch?
stapedial a.
33
What a. is derived from the 3rd aortic arch?
common carotid & proximal internal carotid aa
34
What a. is derived from the 4th aortic arch?
aortic arch & subclavian
35
What a. is derived from the 6th aortic arch?
Pulmonary aa. & ductus arteriosus
36
Motor innervation to the tongue?
CN 12
37
Sensory innervation to the ant 2/3 of the tongue?
Lingual n. (CN 5-3)
38
Taste to the ant 2/3 of the tongue
CN 7
39
Sensory & taste to the post 1/3 of the tongue
CN 9
40
The maxillary sinuses drain into the nasal
middle meatus - Hiatus Semilunaris
41
Unhappy Triad
ACL, MCL, medial meniscus
42
Bifid ureters is d/t abnormal
division of the ureteric bud (early = distal)
43
What v. allows blood to enter the vena cave when cirrhosis causes obstruction of the portal v.
Azygos & Hemiazygous vv. (esophageal plexus) Superior rectal v. (Middle & Inf rectal v.) Paraumbilical v. (Epigastric v.)
44
Mesonephric duct gives rise to what adult structure
Wolffian duct (testes)
45
Metencephalon gives rise to what adult structures?
Cerebellum & Pons
46
Epiploic foramen contains
Hepatic a., Portal v., common bile duct
47
Sensory innervation to the scrotum & medial thigh is provided by
Ilioinguinal n.
48
Urogenital folds give rise to
``` ventral penis (urethra) Labia minora ```
49
What nerve would be injured in a lateral blow to the knee resulting in foot drop & inability to dorsiflex & evert foot?
Common Fibular n.
50
What nerve injury would result in inability to dorsiflex the foot + loss of sensation b/w toes 1-2
Deep Fibular n.
51
Ligament torn in a everted ankle sprain
Calcaneofibular
52
An infant w/ TA must also have what cardiac abnormality?
VSD
53
Double aortic arch results from what embryologic abnormality?
persistence of the right dorsal a. from the 7th intersegmental a.
54
Palatine tonsils are derived form
2nd pharyngeal pouch
55
What vessel is ligated during a hysterectomy & what structure may be inadvertently damaged?
Uterine a.; Ureter
56
HA + vomiting + loss of upper gaze + upper part of sclera is visible above the downward-looking iris?
Tumor in the pineal gland area
57
The splenic a. runs through the
Splenorenal ligament
58
Indirect Inguinal Hernia 1. relation to inf. epigastric a. 2. passage via
Lateral to inf. epigastric a. Enters deep inguinal canal & exits through superior inguinal canal Enters into scrotum (parietal peritoneum) d/t patent processus vaginalis
59
Direct Inguinal Hernia
Through hesselbachs triangle (medial to inf. epigastric a.) Transversalis fascia Rarely enter scrotum
60
Hesselbach's triangle
Inferior epigastric a. Inguinal ligament Rectus abdominus
61
Pain in the anatomical snuffbox ->
scaphoid fracture
62
What is a potential complication with scaphoid fracture?
decreased blood supply from radial a. --> | avascular necrosis
63
Weak wrist extension + intact arm sensation
Radial n. injury at head of radius

DIT (22 decks)

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