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Y2 Anatomy > Upper limb II > Flashcards

Upper limb II Flashcards

1
Q

What are the superficial muscles of the posterior forearm

A

Brachioradialis
Extensor carpi radialis longus and brevis
Extensor carpi ulnaris
Extensor digitorum
Extensor digiti minimi
Anconeus

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2
Q

Most of the muscle belly of brachioradialis is seen in

A

anterior compartment of forearm

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3
Q

Name A-I

A

A- brachioradilais
B- extensor carpi radialis longus
C- common extensor tendon
D- extensor carpi radialis brevis
E- extensor digitorum
F- extensor digiti minimi
G- extensor retinaculum
H- extensor carpi ulnaris
I- anconeus

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4
Q

All superficial posterior muscles of the forearm attach to

A

Lateral epicondyle
- except brachioradialis and extensor carpi radialis longus

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5
Q

What happens when the common extensor tendon is damaged due to repetitive strain

A

Lateral epicondylitis - tennis elbow

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6
Q

Function of the superficial posterior muscles of the forearm

A

Extension of the wrist
Extension of the 4 digits - ED and EDM
Abduction (ECR) and Adduction (ECU) of the wrist

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7
Q

What are the deep muscles of the posterior forearm

A

Supinator
Extensor pollicis longus and brevis
Abductor pollicis longus
Extensor indicis

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8
Q

Function of supinator

A

Supinates the forearm

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9
Q

Function of deep muscles of the posterior forearm

A

Supinates the forearm - supinator
Extension of the thumb - EPL and EPB
Abduction of the thumb - APL
Extension of the 2nd digit - Extensor indices

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10
Q

Extensor pollicis longus and brevis extends the thumb at which joints

A

EPL - all joints
EPB - CMC and MCP

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11
Q

Name A-E

A

A- Supinator
B- Abductor pollicis longus
C- extensor pollicis brevis
D- Extensor pollicis longus
E- extensor indices

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12
Q

Innervation of the posterior forearm

A

Radial nerve

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13
Q

Name A-I

A

A- ulnar nerve
B- brachial artery
C- median nerve
D- ulnar nerve
E- ulnar artery
F- Radial nerve
G- radial artery
H- Anterior interosseous nerve
I- median nerve

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14
Q

Name A-I

A

A- Scaphoid
B- Lunate
C- Triquetrum
D- Pisiform
E- Hamate
F- Capitate
G- Trapezoid
H- CMC
I- Trapezium

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15
Q

Damage to the scaphoid bone is most likely to damage

A

Radial artery - dorsal part

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16
Q

What happens if scaphoid fracture damages the radial artery

A

Can cause AVN of scaphoid -> non-union
More proximal the fracture, the higher the risk of AVN

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17
Q

What are the contents of the anatomical snuffbox

A

Radial artery
Cephalic vein
Superficial branch of radial nerve

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18
Q

Borders of the anatomical snuffbox

A

Medial- extensor pollicis longus tendon
Lateral- Extensor pollicis brevis and abductor pollicis longus tendons
Floor - scaphoid and trapezium carpal bones

19
Q

What are the muscles in thenar eminence

A

Abductor pollicis brevis
Opponens pollicis
Flexor pollicis brevis

20
Q

Function of the muscles in the thenar eminence

A

Abduction of the thumb - APB
Flexion of the thumb - FPB
Opposition of the thumb - OP

21
Q

Muscles in the thenar eminence are innervated by

A

Median nerve

22
Q

What condition can cause muscle wasting in thenar eminence

A

Median nerve damage - carpal tunnel syndrome

23
Q

What are the muscles in the hypothenar eminence

A

Abductor digiti minimi
Flexor digiti minimi
Opponens digiti minimi

24
Q

Function of the muscles in hypothenar eminence

A

Abduction of 5th metatarsal
Flexion of 5th metatarsal
Opposition of 5th metatarsal

25
Q

Innervation of muscles in hypothenar eminence

A

Ulnar nerve

26
Q

Name A-J

A

A- flexor pollicis longus
B- flexor pollicis brevis
C- abductor pollicis brevis
D- opponens pollicis
E- Flexor digitorum profundus
F- flexor digitorum superficialis
G- Opponens digiti minimi
H- Flexor digiti minimi
I- Abductor digiti minimi
J- flexor retinaculum (transverse carpal ligament)

27
Q

What are the muscles of the hand innervated by median nerve

A

LOAF
medial 2 Lumbricals
Opponens pollicis
Abductor pollicis brevis
Flexor pollicis brevis

28
Q

Innervation of the lateral 2 lumbricals

A

Ulnar nerve

29
Q

The lumbricals are attached to

A

the tendons of flexor digitorum profundus

30
Q

Function of the dorsal interossei muscles

A

Abduction of digits

31
Q

Function of the palmar interossei muscles

A

Adduction of digits

32
Q

Innervation of the dorsal and palmar interossei muscles

A

Ulnar nerve

33
Q

Name A and B

A
34
Q

Name A-F

A

A- lumbricals
B- flexor pollicis brevis
C- abductor pollicis brevis
D- opponens pollicis
E- abductor digiti minimi
F- flexor digiti minimi

35
Q

Name A and B

A

A- dorsal interossei
B- palmar interossei

36
Q

Name A-J

A

A- proper palmar digital arteries
B- common palmar digital arteries
C- palmar digital artery
D- Superficial palmar arch
E- Deep palmar branch of ulnar artery
F- ulnar artery
G- ulnar nerve
H- radial artery
I- superficial palmar arch
J- deep palmar arch

37
Q

Name A-J

A

A- posterior interosseous artery
B- radial artery
C- superficial palmar branch of radial artery
D- deep palmar branch of radial artery
E- superficial palmar arch
F- palmar digital arteries
G- common palmar digital arteries
H- deep palmar branch of ulnar artery
I- ulnar artery
J- anterior interosseous artery

38
Q

Name A-D

A

A- superficial branch of radial nerve
B- dorsal branch of ulnar nerve
C- palmar branch of ulnar nerve
D- Palmar cutaneous branch of median nerve (also fingertips)

39
Q

Most of the sensory innervation of the posterior surface of forearm and arm is innervated by

A

Radial nerve

40
Q

The sensory innervation of pink areas are innervated by

A

radial nerve

41
Q

The sensory innervation of the light green areas are innervated by

A

Medial antebrachial cutaneous nerve C8-T1

42
Q

Referred cardiac pain is often felt at

A

Posteromedial surface of the left upper limb

43
Q

Why is referred cardiac pain felt at the posteromedial surface of the left upper limb

A

Left limb because that is the side where the heart is located at

The sensory innervation of that area of skin is by C8-T1 (medial cutaneous, branch of radial nerve, intercostalbrachial nerve) and the visceral afferents of heart enters that region as well

44
Q

The blue area is innervated by

A

Axillary nerve

Y2 Anatomy (10 decks)

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