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Anatomy > UL > Flashcards

UL Flashcards

(47 cards)

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1
Q

Pec Major Innervation

A

Medial & Lateral pectoral nn.

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2
Q

Pec Minor Innervation

A

Medial pectoral n.

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3
Q

Serratus Anterior Innervation

A

long thoracic from Upper & Middle Trunks

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4
Q

Deltoid Innervation

A

Axillary from Posterior Chord

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5
Q

Supraspinatus Innervation

A

Suprascapular n. from Upper Trunk

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6
Q

Infraspinatus Innervation

A

Suprascapular n. from Upper Trunk

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7
Q

Teres Minor Innervation

A

Axillary n. from Posterior Chord

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8
Q

Subscapularis Innervation

A

Upper & Lower Subscapular nn. from Posterior Chord

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9
Q

Teres Major Innervation

A

Lower Subscapular

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10
Q

Biceps Brachii Innervation

A

Musculocutaneous n. from Lateral Chord

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11
Q

Brachialis Innervation

A

Musculocutaneous n. from Lateral Chord

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12
Q

Coracobrachialis Innervation

A

Musculocutaneous n. from Lateral Chord

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13
Q

Innervation of Anterior Arm compartment

A

Musculocutaneous n. from Lateral Chord

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14
Q

Triceps Brachii Innervation

A

Radial n from Posterior Chord

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15
Q

Anconeus Innervation

A

Radial n. from Posterior Chord

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16
Q

Innervation of the Anterior Forearm

A

Median n. from Lateral & Medial Chords

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17
Q

Innervation of Posterior Forearm

A

Radial n. from Posterior Chord

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18
Q

Thenar Innervation

A

Median n. from lateral & medial Chords

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19
Q

Hypothenar Innervation

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A

Ulnar n. from Medial Cord

20
Q

Wrist bones

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A

Scaphoid, Lunate, Triquetrium, Pisiform

Trapezium, Trapezoid, Capitate, Hamate

21
Q

Branches of Axillary Artery

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A 
Superior Thoracic
Thoracoacromial
Lateral Thoracic
Anterior & Posterior Humeral Circumflex
Profundus Brachii
22
Q

Thenar Innervation exception

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A

Adductor pollicis -> Ulnar n.

23
Q

Anterior Forearm Compartment exception to Innervation

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A

Flexor digitorum profundus: ulnar n. innervates lateral 2 digits

24
Q

Forearm Anterior Compartment Innervation & function

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A

Median n. from lateral & medial cords

Flexors

25
Forearm Posterior Compartment Innervation
Radial n. | Extensors
26
Thenar Innervation
Median n. | except adductor pollicis (ulnar n)
27
Hypothenar Innervation
Ulnar n. from medial cord
28
Germ origin of UL skin
ectoderm
29
Origin of UL muscle
Paraxial mesoderm -> somites
30
Origin of UL bone
lateral plate mesoderm -> somatic mesoderm -> cartilage
31
UL Schwann cell origin
Neural Crest Mesenchyme
32
Anterior-Posterior UL development key players
FGF 10 & 8 SHH AER & ZPA
33
Proximal-Distal UL development key players
Hox 9-13
34
Dorsal-Ventral UL development key players
Wnt7 & EN-1
35
Rotation of UL development
90 degrees laterally
36
Rotation of LL development
90 degrees medially
37
Amelia: axis, wk, mech
AP wk 4 Limb bud suppression
38
Meromelia: axis, wk, mech
PD wk 5 later limb bud defects
39
Bifurcate hand
AP wk 6-8 defect in distal SHH gradient
40
Syndactyly
AP 4-8 Interdigital Mesenchyme Apoptosis defect
41
Polydactyly
AP wk 4-8 Inc SHH across entire gradient
42
Brachydactyly
PD 8 Hox 13 mutation
43
C5-C6 Root Injury Affected Nerves Symptoms Presentation
Suprascapular & axillary nn. -> paralysis of abductors & lateral rotators of shoulder Musculocutaneous n. -> paralysis of elbow flexors & forearm supinators *Waiter's tip
44
C8-T1 Root Injury Affected Nerves Symptoms Presentation
Loss of Ulnar n. Weakness in Median n. Paralysis of intrinsic muscles in hand (flexors) and weakness in extrinsic hand flexors *claw hand May be accompanied by Horner's Syndrome due to T1 loss to sympathetic chain
45
Radial N. Palsy Possible Cause Symptoms Presentation
``` Causes: compression in radial groove or fracture of humeral shaft Symptoms: Triceps-> weak Paralysis of P forearm P. forearm Sensory loss *wrist drop ```
46
Median n. Palsy Symptoms Presentation
a. compartment paralysis -> inability to flex fingers Possible sensory loss to anterior lateral hand *sign of benediction
47
Ulnar n. Palsy Common injury site Symptoms Presentation
Medial epicondyle of Humerus hypothenar muscle weakness *ulnar claw

Anatomy (7 decks)

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