Brainscape's Knowledge GenomeTM

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


See full index

Gross Anatomy Exam 2 > Posterior Muscles of Forearm > Flashcards

Posterior Muscles of Forearm Flashcards

0
Q

Insertion of Brachioradialis

A

Lateral surface of Distal end of Radius proximal to Styloid process

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

Origin of Brachioradialis

A

Proximal two thirds of Lateral Supraepicondylar ridge of Humerus

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

Innervation of Brachioradialis

A

Radial Nerve c5 C6 c7

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

Action of Brachioradialis

A

Relatively weak flexion of elbow joint, maximal when forearm is in Midpronated position

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

Origin of Extensor Carpi Radialis Longus

A

Lateral Supra-epicondylar ridge of Humerus

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

Insertion of Extensor Carpi Radialis Longus

A

Dorsal aspect of base of 2nd Metacarpal

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

Innervation of Extensor Carpi Radialis Longus

A

Radial Nerve C6 C7

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

Actions of Extensor Carpi Radialis Longus

A

Extend and Abduct wrist joint

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

Origin of Extensor Carpi Radialis Brevis

A

Lateral Epicondyle of Humerus

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

Insertion of Extensor Carpi Radialis Brevis

A

Dorsal aspect of base of 3rd Metacarpal

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

Innervation of Extensor Carpi Radialis Brevis

A

Deep branch of Radial Nerve C7 c8

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

Action of Extensor Carpi Radialis Brevis

A

Extend and abducts wrist joint;

Active during fist clenching

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

Origin of Extensor Digitorum

A

Lateral Epicondyle of Humerus

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

Insertion of Extensor Digitorum

A

Extensor expansions of medial four fingers

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

Innervation of Extensor Digitorum

A

Posterior Interosseous Nerve C7 c8, continuation of deep branch of Radial nerve

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

Action of Extensor Digitorum

A

Extend Wrist joint

Extend Medial four fingers primarily at Metacarpophalangeal joints, secondarily at Interphalangeal joints

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

Origin of Extensor Digiti Minimi

A

Lateral Epicondyle of Humerus

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

Insertion of Extensor Digiti Minimi

A

Extensor expansion of 5th finger

18
Q

Innervation of Extensor Digiti Minimi

A

Posterior Interosseous Nerve C7 c8

19
Q

Action of Extensor Digiti Minimi

A

Extends wrist joint

Extends 5th finger primarily at Metacarpophalangeal joint, secondarily at Interphalangeal joint

20
Q

Origin of Extensor Carpi Ulnaris

A

Lateral Epicondyle of Humerus

Posterior border of Ulna via a shared aponeurosis

21
Q

Insertion of Extensor Carpi Ulnaris

A

Dorsal aspect of base of 5th Metacarpal

22
Q

Innervation of Extensor Carpi Ulnaris

A

Posterior Interosseous Nerve C7 c8

23
Q

Action of Extensor Carpis Ulnaris

A

Extends and Adducts wrist joint (also active during fist clenching)

24
Q

Origin of Supinator

A

Lateral Epicondyle of Humerus
Radial Collateral and Anular Ligaments
Supinator Fossa
Crest of Ulna

25
Q

Insertion of Supinator

A

Lateral, posterior, and anterior surfaces of proximal third of Radius

26
Q

Innervation of Supinator

A

Deep branch of Radial nerve c7 C8

27
Q

Actions of Supinator

A

Supinates Forearm; rotates Radius to turn palm anteriorly or superiorly (if elbowed is flexed)

28
Q

Origin of Abductor Pollicis Longus

A

Posterior surface of Proximal halves of Ulna, Radius, and Interosseous Membrane

29
Q

Insertion of Abductor Pollicis Longus

A

Base of 1st Metacrapal

30
Q

Innervation of Abductor Pollicis Longus

A

Posterior Interosseous Nerve c7 C8

31
Q

Action of Abductor Pollicis Longus

A

Extends wrist joint

Abducts thumb and extends it at Carpometacarpal joint

32
Q

Origin of Extensor Pollicis Longus

A

Posterior surface of Middle third of Ulna and Interosseous Membrane

33
Q

Insertion of Extensor Pollicis Longus

A

Dorsal aspect of base of distal phalanx of thumb

34
Q

Innervation of Extensor Pollicis Longus

A

Posterior Interosseous Nerve C7 c8

35
Q

Action of Extensor Pollicis Longus

A

Extends Wrist Joint

Extends distal phalanx of Thumb at Interphalangeal joint; extends Metacarpophalangeal and Carpometacarpal joints

36
Q

Origin of Extensor Pollicis Brevis

A

Posterior surface of Distal third of Radius and Interosseous Membrane

37
Q

Insertion of Extensor Pollicis Brevis

A

Dorsal aspect of base of proximal phalanx of thumb

38
Q

Innervation of Extensor Pollicis Brevis

A

Posterior Interosseous Nerve C7 c8

39
Q

Action of Extensor Pollicis Brevis

A

Extend wrist joint

Extends proximal phalanx of thumb at Metacarpophalangeal joint; extends Carpometacarpal joint

40
Q

Origin of Extensor Indicis

A

Posterior surface of distal third of Ulna and Interosseous Membrane

41
Q

Insertion of Extensor Indicis

A

Extensor expansion of 2nd finger

42
Q

Innervation of Extensor Indicis

A

Posterior Interosseous Nerve C7 c8

43
Q

Actions of Extensor Indicis

A

Extends wrist joint

Extends 2nd finger (enabling its independent extension); helps extend hand at wrist

Gross Anatomy Exam 2 (15 decks)

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