Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Muscles of back/upper extremity > Hand > Flashcards

Hand Flashcards

1
Q

Number of bones in hand

A

27
8 carpals
5 metacarpals
14 phalanges

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

Radiocarpal joint type

A

condyloid synovial

permits movement in 2 directions (flexion/extension, abduction/adduction, circumduction)

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

Intercarpal (IC) joint type

A

gliding synovial

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

Carpometacarpal (CMC) joint type

A

planar synovial

saddle for 1st CMC - higher mobility

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

Metacarpophalangeal (MCP) joint type

A

condyloid synovial

pure hinge at 1st MCP

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

Interphalangeal (IP) joint type

A

hinge synovial
2 on digits 2-5 (PIPs, DIPs)
1 on digit 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Intrinsic muscles of hand (by compartment)

A 
palmaris brevis
thenar compartment
adductor compartment
hypothenar compartment
central compartment
interosseous compartments
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Attachments of palmaris brevis

A

continuation of palmar aponeurosis

Distal: skin of medial border of hand

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

Thenar compartment muscles

A

abductor pollicis brevis
flexor pollicis brevis
opponens pollicis

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

Hypothenar compartment muscles

A

abductor digiti minimi
flexor digiti minimi
opponens digiti minimi

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

Adductor compartment muscle

A

adductor pollicis

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

Central compartment muscles

A

lumbricals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Interosseous compartments

A 
dorsal interossei (DAB), 4
palmar interossei (PAD), 3
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Innervation of thenar compartment muscles

A

recurrent branch of median nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Muscles in hand supplied by median nerve

A 
1/2 LOAF
1/2 lumbricals
opponens pollicis
abductor pollicis brevis
flexor pollicis brevis
OAF of LOAF = thenar eminence
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Innervation of hypothenar compartment muscles

A

deep branch of ulnar nerve

17
Q

Function of lumbricals

A

flex MCP joints, extend IP joints

18
Q

Innervation of lumbricals

A

lumbricals 1,2 - median nerve

lumbricals 3,4 - ulnar nerve

19
Q

Innervation of interossei muscles

A

deep branch of ulnar nerve

20
Q

Function of interossei

A

dorsal - abduct
palmar - adduct
assist lumbricals in flexion at MCPs, extension at IPs

21
Q

Innervation of palmaris brevis

A

superficial branch of ulnar n.

Muscles of back/upper extremity (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions