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Brachial plexus Flashcards

1
Q

Which of the spinal nerves make up the brachial plexus?

A

C5 to T1

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2
Q

What five nerves is the BP linked to?

A 
Musculocutaneous
Median
Radial
Ulnar
Axillary
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3
Q

What does the musculocutaneous nerve control?

A

All muscles in the anterior compartment of the arm

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4
Q

Which spinal nerves innervate the musculocutaneous nerve?

A

C5 to C7

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5
Q

What does the median nerve control?

A

Most flexors in the forearm and the thenar muscles in hand

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6
Q

Which spinal nerves innervate the median nerve?

A

C5, C6, C7, C8, T1

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7
Q

What does the radial nerve control?

A

Posterior compartment of upper limb

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8
Q

Which spinal nerves innervate the radial nerve?

A

C5, C6, C7, C8, T1

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9
Q

What does the ulnar nerve control?

A

Hand and forearm

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10
Q

Which spinal nerves innervate the radial nerve?

A

C5, C6, C7, C8, T1

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11
Q

What does the axillary nerve control?

A

Deltoid muscle

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12
Q

Which spinal nerves innervate the axillary nerve?

A

C5, C6

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13
Q

What are the 5 roots of the brachial plexus?

A

C5, C6, C7, C8, T1

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14
Q

What are the three trunks of the bp?

A

Superior, middle, inferior

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15
Q

What are the three cords of the bp?

A

Lateral, medial, posterior

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16
Q

What is a nerve?

A

Millions of axons moving together, no cell body or neuron

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17
Q

What are the outputs of the bp?

A

Peripheral nerves - cutaneous/motor nerves

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18
Q

What are the inputs of the bp?

A

Spinal nerves - dermatomes/myotomes

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19
Q

Which three peripheral nerves control the hand?

A

Radial, medial, ulnar

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20
Q

What is the peripheral nervous system?

A

The nervous system outside the CNS

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21
Q

What is a dermatome?

A

Area of skin where sensory nerves derive from one spinal nerve

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22
Q

What is a myotome?

A

Muscles are innervated by a single spinal nerve

23
Q

Which three spinal nerves/dermatomes control the hand?

A

C8, C7, C6

24
Q

Dermatome of C2

A

Lower jaw, back of head

25
Q

Dermatome of C3

A

Upper neck, back of head

26
Q

Dermatome of C4

A

Lower neck, upper shoulder

27
Q

Dermatome of C5

A

Collarbones, upper shoulders

28
Q

Dermatome of C6

A

Shoulders, thumb, outside of arm

29
Q

Dermatome of C7

A

Upper back, back of arm, pointer and middle finger

30
Q

Dermatome of C8

A

Upper back, inside of arm, ring and little finger

31
Q

Dermatome of T1

A

Upper chest and back, armpit, front of arm

32
Q

Dermatome of T2

A

Upper chest and back

33
Q

Dermatome of T3

A

Upper chest and back

34
Q

Dermatome of T4

A

Upper chest (nipples) and back

35
Q

Dermatome of T5

A

Mid chest ad back

36
Q

Dermatome of T6

A

Mid chest and back

37
Q

Dermatome of T7

A

Mid chest and back

38
Q

Dermatome of T8

A

Upper abdomen and mid back

39
Q

Dermatome of T9

A

Upper abdomen, mid back

40
Q

Dermatome of T10

A

Abdomen (belly button) and mid back

41
Q

Dermatome of T11

A

Abdomen and mid back

42
Q

Dermatome of T12

A

Lower abdomen and mid back

43
Q

Dermatome of L1

A

Lower back, hips and groin

44
Q

Dermatome of L2

A

Lower back, front and inside of thigh

45
Q

Dermatome of L3

A

Lower back, front and inside of thigh

46
Q

Dermatome of L4

A

Lower back, front of thigh and calf, inside of ankle, area of knee

47
Q

Dermatome of L5

A

Lower back, front and outside of cold, first 4 toes, top and bottom of foot

48
Q

Dermatome of S1

A

Lower back, back of thighs, back and inside of calf, last toe

49
Q

Dermatome of S2

A

Buttocks, genitals, back of thighs and calf

50
Q

Dermatome of S3

A

Buttocks, genitals

51
Q

Dermatome of S4

52
Q

Dermatome of S5

53
Q

Dermatome of C1

A

Buttocks and tailbone

Musculoskeletal system (24 decks)

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