Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Systems: MSK AB > Hand and Wrist Anatomy > Flashcards

Hand and Wrist Anatomy Flashcards

1
Q

What nerve is injured in wrist drop?

A

Radial nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What bones form the fingers?

A
  • Metacarpals
  • Proximal phalanges
  • Intermediate phalanges
  • Distal phalanges
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What bones form the thumb?

A
  • Metacarpal
  • Proximal phalange
  • Distal phalange
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name the carpal bones.

A
  • Trapezium
  • Trapezoid
  • Capitate
  • Hamate
  • Pisiform
  • Triquetrum
  • Lunate
  • Scaphoid
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What type of joint is the glenohumeral/ shoulder joint?

A

Synovial ball and socket

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What movements occur at the glenohumeral/ shoulder joint?

A
  • Flexion and extension
  • Adduction and abduction
  • Circumduction
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What type of joint is the elbow?

A

Synovial hinge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What movements occur at the elbow?

A

Flexion and extension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What type of joint is the proximal and distal ulnar joint?

A

Synovial pivot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What movements occur at the proximal and distal ulnar joint?

A

Pronation and supination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What type of joint is the wrist?

A

Synovial condyloid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What movements occur at the wrist?

A
  • Flexion and extension
  • Adduction and abduction
  • Circumduction
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What type of joint is the carpo-metacarpal joint (thumb)?

A

Synovial saddle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What movements occur at the carpo-metacarpal joint (thumb)?

A
  • Flexion and extension
  • Adduction and abduction
  • Circumduction
  • Opposition
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What type of joint is the carpal-metacarpal joint (fingers)?

A

Synovial condyloid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What movements occur at the carpal-metacarpal joint (fingers)?

A
  • Flexion and extension (4th an 5th)

- Almost no movements (2nd and 3rd)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What type of joint is the proximal metacarpal-phalangeal joint?

A

Synovial condyloid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What movements occur at the proximal metacarpal-phalangeal joint?

A
  • Flexion and extension
  • Adduction and abduction
  • Circumduction
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What type of joint is the interphalangeal joint?

A

Synovial hinge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What movements occur at the interphalangeal joint?

A

Flexion and extension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Where does the subclavian artery become the axillary artery?

A

Lateral border of 1st rib

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Where does the axillary artery become the brachial artery?

A

Inferior border of teres major

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What does the brachial artery become?

A

Divides into the ulnar and radial arteries at the cubical fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What do the radial and ulnar arteries form in the hand?

A

Palmar arches which give off digital arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What is the main contributor of the more distal superficial palmar arch?
Ulnar artery
26
What is the main contributor of the more proximal deep palmar arch?
Radial artery
27
Where do the superficial veins arise from?
Dorsal venous arch of the back of the hand
28
What is the course of the cephalic vein?
- Travels up arm on the lateral side | - Drains into the axillary vein below the clavicle
29
What is the course of the basilica vein?
- Travels up arm on the medial side | - Becomes continuous with brachial veins (deep veins accompanying brachial artery)
30
What is the median cubital vein?
A vein which connects the cephalic and basilica veins across the cubital fossa
31
Where does the lymphatics of the upper right quadrant of the body drain?
Right lymphatic duct
32
Where does the lymphatics of the left side of the body and the lower right quadrant drain?
Thoracic duct
33
What lymph nodes drain the arm?
Axillary lymph nodes
34
What condition can cause lymphedema of the arm?
Breast cancer
35
Why is the brachioradialis a special muscle?
It's action is flexion of the forearm but it is in the posterior compartment and supplied by the radial nerve
36
What is the innervation of the thenar muscles?
- Median nerve | - Adductor pollocis is ulnar nerve
37
What is the innervation of the hypothenar muscles?
Ulnar nerve
38
What is the innervation of lumbricals 1-2?
Median nerve
39
What is the innervation of lumbricals 3-4
Ulnar nerve
40
What is the innervation of the dorsal interossei 1-4?
Ulnar nerve
41
What is the innervation of the palmar interossei 1-3?
Ulnar nerve
42
What are the 8 flexors of the forearm?
1st Layer - Pronator teres - Flexor carpi radialis - Palmaris longus - Flexor carpi ulnaris 2nd Layer -Flexor digitorum superficialis 3rd Layer - Flexor digitorum profundus - Flexor pollicis longus - Pronator quadratus
43
What are the actions of the superficial forearm flexors?
- Flex the wrist - Adduct (flexor carpi ulnaris) - Abduct (flexor carpu radialis - Pronation (pronator teres and pronator quadratus)
44
What is the main action of the intermediate and deep layers of the flexor forearm compartment?
These muscles primarily flex proximal and distal interphalangeal joints respectively, although they are also synergists at all the other joints which they cross
45
Where does flexor digitorum superficialis attach?
Middle phalanges of digits 2-5
46
Where does flexor digitroum profundus and flexor pollicis longus attach?
Distal phalanges
47
What are the 11 extensors of the forearm?
- Extensor pollicis longus - extensor indicis - Extensor carpi radialis longus - Extensor carpi radialis brevis - Abductor pollicis longus - Extensor pollicis brevis - Anconeus - Extensor digitroum - Extensor digiti minimi - Extensor carpi ulnaris - Supinator
48
What are the actions of the posterior forearm muscles?
- Powerful extensor of the wrist and digits (Fist clenchers) - Adduct (ECU) - Abduct (ECRL, ECRB) - Supination ( Biceps brachii, Supinator) - Antagonise and agonise the anterior wrist muscles by working in differential pairs
49
What are the actions of extensor digiti minimi and extensor digitorum?
- Intermediate posterior layer, extensors, extend the fingers - But also extend elbow and wrist
50
What is the main content of the anatomical snuffbox?
Radial artery
51
What can inflammation of the flexor retinaculum lead to?
Carpal tunnel syndrome
52
What nerve is affected in carpal tunnel syndrome?
Median nerve
53
What muscles are found in the hand?
- Thenar M (x4) - Hypothenar (x3) - Lumbricals (x4) - Palmer interossei (x3) - Dorsal interossei (x4)
54
Name the thenar muscles.
- Flexor pollicis brevis - Abductor pollicis brevis - Adductor pollicis - Opponens pollicis
55
What do the thenar muscles control?
Movements of the thumb
56
Name the hypothenar muscles.
- Flexor digiti minimi - Abductor digiti minimi - Opponens digiti minimi
57
What do the hypothenar muscles control?
Movements of the little finger
58
What is the function of the palmar interossei?
Adduction
59
What is the function of the dorsal interossei?
Abduction
60
What is the proximal attachment of the lumbrical muscles?
Tendon of flexor digitorum profundus
61
What is the action of the lumbricals?
Lumbricals simultaneously flex the MCP joint and extend the PIP joint.
62
What is the distal attachment of the lumbricals?
Dorsal expansions of the phalanges
63
What will median nerve injury result in?
- Inability to flex distal interphalangeal joint of index finger - Inability to flex digits 2 and 3 into a compact fist

Systems: MSK AB (43 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions