Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anesthesia Foundations 2 > Upper Extremity Anatomy Review > Flashcards

Upper Extremity Anatomy Review Flashcards

1
Q

The brachial plexus is comprised of what nerve roots?

A

C5 C6 C7 C8 T1
(5 total)

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

What are the components of the brachial plexus from proximal to distal?

A

Roots, trunks, divisions, cords, branches

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

What are the trunks of the brachial plexus?

A

Superior, middle, inferior

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

How many divisions are there in the brachial plexus?

A

6

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

What are the cords of the brachial plexus?

A

Lateral, posterior, medial
(3 - total)

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

What are the branches of the brachial plexus?

A

Musculocutaneous, median, axillary, radial, ulnar.

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

What roots form the superior trunk of the brachial plexus?

A

C5 and C6

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

What root forms the middle trunk of the brachial plexus?

A

C7

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

What roots form the inferior trunk of the brachial plexus?

A

C8 T1

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

What trunks form the lateral cord of the brachial plexus?

A

Superior and middle

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

What trunks form the posterior cord of the brachial plexus?

A

Superior, middle, inferior

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

What trunks form the medial cord of the brachial plexus?

A

inferior

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

What nerve roots innervate the musculocutaneous nerve of the brachial plexus?

A

C5-C7

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

What nerve roots innervate the axillary nerve of the brachial plexus?

A

C5 -C6

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

What nerve roots innervate the radial nerve of the brachial plexus?

A

C5-T1

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

What nerve roots innervate the Median nerve of the brachial plexus?

A

C5-T1

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

What nerve roots innervate the ulnar nerve of the brachial plexus?

A

C8-T1

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

The roots of the brachial plexus originate from?

A

The union of ventral Rami of the C5 – T1 spinal nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

the brachial plexus roots pass between which two muscles?

A

The anterior and middle scalene muscles

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

The brachial plexus roots converge into trunks just beyond?

A

The lateral border of the scalene muscles

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

Where do the trunks of the brachial plexus diverge into anterior and posterior divisions?

A

Underneath the clavicle and over the first rib

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

The anterior divisions of the brachial plexus innervate what parts of the arm?

A

Anterior (Flexor)

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

The posterior divisions of the brachial plexus innervate what parts of the arm?

A

Posterior (extensor)

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

Divisions of the brachial plexus converge when?

A

The brachial plexus goes under the pectoralis minor muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Where do the brachial plexus cords diverge into branches?

A

In the axilla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Does the brachial plexus supply sensory, motor, or both innervation to nearly all of the shoulder and upper extremity?

A

Both

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Identify the roots, trunks, divisions, cords, and terminal branch

A

C5-C7,
Superior and Middle Trunks,
Anterior Divisions of superior and middle trunks
Lateral Cord,
Musculocutaneous Branch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Identify the roots, trunks, divisions, cords, and terminal branch

A

C5-T1,
Superior, Middle, and Inferior
Anterior Divisions from all 3 trunks
Lateral and Medial Cords
Median Nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Identify the roots, trunks, divisions, cords, and terminal branch

A

C5-C6
Superior Trunk
Posterior division of superior trunk
Posterior Cord
Axillary Nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Identify the roots, trunks, divisions, cords, and terminal branch

A

C8-T1
Inferior Trunk
Anterior Division of Inferior Trunk
Medial Cord
Ulnar Nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Identify the roots, trunks, divisions, cords, and terminal branch

A

C5-T1
Superior, Middle, Inferior Trunks
Posterior divisions from all 3 trunks
Posterior Cord
Radial Nerve

32
Q

Name 5 non-terminal branches of the brachial plexus. How are they categorized?

A

Categorized by origin in relation to the clavicle.

-Supraclavicular: Dorsal Scapular Nerve, SupraSCAPular Nerve, Long Thoracic Nerve

Infraclavicular: Lateral Pectoral Nerve and Medial Pectoral Nerve

33
Q

What nerve root(s) does the dorsal scapular nerve arise from? What muscles does it innervate?

A

C5
Innervates levator scapula and rhomboid muscles

34
Q

What nerve roots does the Suprascapular nerve arise from? What muscles does it innervate?

A

C5-C6
Innervates the supraspinatus and infraspinatus muscles (and acromioclavicular joint)

35
Q

What nerve roots does the Long Thoracic nerve arise from? What muscles does it innervate?

A

C5-C7
Innervates the serratus anterior muscle

36
Q

What nerve roots does the lateral pectoral nerve arise from? What muscles does it innervate?

A

C5-C7
Pectoralis major muscle (and acromioclavicular joint)

37
Q

What nerve roots does the Medial Pectoral nerve arise from? What muscles does it innervate?

A

C8-T1
Pectoralis Minor and lower region of pectoralis major

38
Q

The phrenic nerve originates from?

A

Anterior rami of C3-C5

39
Q

The supraclavicular nerve arises from?

A

C3-C4 of the cervical plexus

40
Q

Fxn of the supraclavicular nerve

A

Provides sensory innervation to the lateral portion of the clavicle.
Superior aspect of the scapula posteriorly
Midline to deltoid along with 2nd rib anteriorly

41
Q

What is the acromioclavicular joint?

A

Where the clavicle and scapula join

42
Q

A Dermatome describes an area of skin innervated by?

A

A dorsal (sensory) spinal nerve root

43
Q

What dermatome provides sensory innervation to the superior aspect of the shoulder?

44
Q

What dermatome provides sensory innervation to the lateral shoulder?

45
Q

What dermatome provides sensory innervation to the 3rd digit?

46
Q

What dermatome provides sensory innervation to the 5th digit (pinky)? why do we care about this one so much

A

C8

In neuraxial anesthesia, if a pts pinky starts to get numb, the block is spreading too high/cephalad

47
Q

What dermatome provides sensory innervation to the medial aspect of the arm?

48
Q

What dermatome provides sensory innervation to the axilla?

49
Q

What nerve provides sensory innervation to the yellow region? What nerve roots does it arise from?

A

Supraclavicular (C3-C4)

50
Q

What nerve provides sensory innervation to the lateral upper arm at the shoulder (the green region)? What nerve roots does it arise from?

A

Axillary (C5-C6)

51
Q

What nerve provides sensory innervation to the dark blue region? What nerve roots does it arise from?

A

SupraSCAPular (C5-C6)

52
Q

What nerves provide sensory innervation to the medial upper arm to elbow (dark orange region)? What nerve roots does it arise from?

A

Intercostalbrachial (2nd intercostal nerve) and Medial brachial cutaneous (T1)

53
Q

What nerve provides sensory innervation to the purple region? What nerve roots does it arise from?

A

Radial (C5-T1)

54
Q

What nerve provides sensory innervation to the anterior upper arm, anterior & medial forearm to wrist (maroon region)? What nerve roots does it arise from?

A

Medial Antebrachial Cutaneous N. (C8-T1)

55
Q

What nerve provides sensory innervation to the lateral forearm to wrist (light blue region)? What nerve roots does it arise from?

A

Musculocutaneous (C5-C7)

56
Q

What nerve provides sensory innervation to the plamer side of the hand + dorsal side of digits 1, 2, 3. Along with the radial side of the 4th digit (light orange region)? What nerve roots does it arise from?

A

Median N. (C5-T1)

57
Q

What nerve provides sensory innervation to the hypothenar eminence along with the ulnar side of the 4th digit and entire 5th digit (pink region)? What nerve roots does it arise from?

A

Ulnar n. (C8-T1)

58
Q

A myotome describes muscles intervated by?

A

Ventral (motor) spinal nerve roots

59
Q

What nerve provides motor innervation to the green region? What is the motor fxn?

A

Axillary N.
Shoulder aBduction (deltoid contraction)

60
Q

What nerve provides motor innervation to the light blue region? What is the motor fxn?

A

Musculocutaneous
Elbow flexion (bicep contraction)
Forearm supination (palm faces up)

61
Q

What nerve provides motor innervation to the lavender region? What is the motor fxn?

A

Subscapular
medially rotate and adduct the humerus.

62
Q

What nerve provides motor innervation to the dark blue region? What is the motor fxn?

A

SupraSCAPular
Enables shoulder abduction (supraspinatus) and external rotation (infraspinatus

63
Q

What nerve provides motor innervation to the purple region? What is the motor fxn?

A

Radial

elbow extension (tricep contraction)
wrist extension
finger extension
thumb aBduction

64
Q

What nerve provides motor innervation to the orange region? What is the motor fxn?

A

Median

forearm pronation (palm faces down)
finger flexion (first 3.5 digits)
thumb opposition

65
Q

What nerve provides motor innervation to the pink region? What is the motor fxn?

A

Ulnar N.

Wrist flexion
5th digit opposition to thumb
Finger flexion (4th and 5th digit)
Thumb aDDuction (Think nerve stimulation and NMBs for a adductor pollicis contraction)

66
Q

What nerve provides sensory innervation to the pink region?

A

Ulnar nerve

67
Q

What nerve provides sensory innervation to the orange region?

68
Q

What nerve provides sensory innervation to the purple region?

69
Q

What nerve provides sensory innervation to the light blue region?

A

musculocutaneous

70
Q

An osteotome describes bones and joints innervated by?

A

Dorsal (sensory) spinal nerve root(s)

71
Q

What nerve provides sensory innervation to the lavender region?

A

subscapular

72
Q

What nerve provides sensory innervation to the green region?

73
Q

What nerve provides sensory innervation to the dark blue region?

A

supraSCAPular

74
Q

What nerve provides sensory innervation to the red region?

A

supraclavicular

75
Q

What nerve provides sensory innervation to the dark yellow region?

A

subclavius

Anesthesia Foundations 2 (12 decks)

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