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Peripheral Nervous System > Exam 3 > Flashcards

Exam 3 Flashcards

1
Q

The brachial plexus is made of the anterior primary rami of what spinal nerves

A

C5-T1

Sometimes C4 and T2

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2
Q

The anterior primary rami C5-T1 making up the brachial plexus travel over what rib on their way to the axilla

A

Rib 1

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3
Q

From medial to lateral how does brachial plexus form

A

Roots-Trunks-Divisions-Cords-terminal branches

RTDCB

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4
Q

True or false; each root of the brachial plexus receives a gray ramus communicans from sympathetic trunk

A

true

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5
Q

The roots of the brachial plexus travel where?

A

Between anterior and middle scalenes into posterior triangle

And posterior and superior subclavian a.

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6
Q

What are the 3 trunks of the brachial plexus

A

Superior - C5 and C6
Middle - C7
Inferior - C8 and T1

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7
Q

After the brachial plexus forms its roots then trunks what does it form?

A

Anterior and Posterior Divisions

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8
Q

The anterior division of the brachial plexus supplies what

A

Anterior compartment of arm and forearm

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9
Q

The posterior division of the brachial plexus supplies what

A

posterior compartment of arm and forearm

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10
Q

The cords of the brachial plexus are name for their relation to what?

A

axillary artery

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11
Q

What makes up the lateral cord of the brachial plexus

A

Anterior division of superior and middle trunks

C5, C6, C7

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12
Q

C5, C6, and C7 make up what cord of the brachial plexus/

A

Lateral (as well as anterior division of superior and middle trunks)

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13
Q

The medial cord of the brachial plexus is composed of what?

A

Anterior division of inferior trunk

C8 and T1

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14
Q

Which cord of the brachial plexus has every spinal level in it?

A

Posterior cord

C5-T1

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15
Q

True or false; the posterior cord of the brachial plexus is made up of all 3 trunks of posterior division

A

true

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16
Q

What are the cords of the brachial plexus named in relation to/

A

Axillary artery

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17
Q

The dorsal scapular n. comes off of what spinal root

A

C5

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18
Q

The levator scapula, rhomboid major and minor all receive motor information from this nerve

A

dorsal scapular n. (C5)

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19
Q

The long thoracic n. is composed of what spinal roots

A

C5, C6 and C7

20
Q

The serratus anterior receives motor supply from this nerve

A

Long thoracic (C5,C6,C7)

21
Q

How are the dorsal scapular nerve (C5) and Long thoracic (C5,C6,C7) related?

A

They are both nerves coming directly off roots of the brachial plexus

22
Q

The supra scapular n. is composed of what spinal levels

23
Q

The supraspinatus and infraspinatus receive motor information from this nerve

A

Suprascapular nerve (C5,C6)

24
Q

The nerve to the subclavius is composed of what spinal levels

A

C5 and C6 (just like supra scapular n)

25
Q

The subclavius is innervated by this nerve

A

Nerve to subclavius (C5,C6)

26
Q

How are the supra scapular nerve and nerve to subclavius related?

A

They are both nerves coming off the superior trunk of the brachial plexus

27
Q

The lateral pectoral nerve is supplied by what cord levels?

A

C5, C6, C7

28
Q

What nerve supplies the pectorals major?

A 
Lateral pectoral (C5,C6,C7) 
and Medial Pectoral (C8, T1)
29
Q

The musculocutaneous nerve is supplied by what cord levels?

A

C5, C6, C7

30
Q

The coracobrachialis, biceps brachia, brachial is all receive motor innervation from what nerve

A

Musculocutaneous nerve (C5,C6, C7)

31
Q

What does the musculocutaneous nerve (C5, C6, C7) eventually becomes what?

A

Lateral cutaneous n. of the forearm (skin over lateral forearm-sensory)

32
Q

The lateral pectoral n. and musculocutaneous n. are related how?

A

Both nerves from the lateral cord

33
Q

The medial pectoral n. is supplied by what cord levels?

34
Q

The pectoralis major and minor are both supplied by what nerve

A

Medial pectoral n. (C8 and T1)

35
Q

The medial cutaneous n. of the arm is supplied by what cord levels

36
Q

The sensory information supply of the medial arm between the axilla and elbow is supplied by what

A

Medial cutaneous n. of the arm

37
Q

The medial cutaneous n. of the forearm is supplied by what cord levels

38
Q

The sensory information over the biceps brachia, and anterior and medial aspect of forearm is supplied by what?

A

Medial cutaneous n. of the forearm

39
Q

The medial pectoral n. medial cutaneous n. of the arm and medial cutaneous n. of the forearm are all related how?

A

All nerves from the medial cord

40
Q

The superior sub scapular n. is supplied by what cord levels

41
Q

The subscapularis is supplied by what n.

42
Q

What cord levels supply the thoracodorsal n.

A

C6, C7, C8

43
Q

What n. supplies the latissimus dorsi

A

Thoracodorsal n. (C6,C7,C8)

44
Q

What cord levels supply the inferior sub scapular n.

45
Q

The subscapularis and teres major are both supplied by

A

Subscapular n. (C5,C6)

Peripheral Nervous System (3 decks)

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