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ANAT-A 215 Exam 3 > Spinal Nerves > Flashcards

Spinal Nerves Flashcards

1
Q

Spinal Cord Location

A

Comes directly off of the Spinal Cord

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2
Q

How many pairs of Spinal Nerves?

A

31

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3
Q

Dermatone

A

Part of skin innervated by nerve

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4
Q

How many Cranial Nerves?

A

8

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5
Q

How many Thoracic Spinal Nerves?

A

12

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6
Q

How many Lumbar Spinal Nerves

A

5

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7
Q

How many Sacral Spinal Nerves?

A

5

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8
Q

How many Coccygeal Spinal Nerves?

A

1

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9
Q

Spinal Nerve formed from..

A

Anterior Root and Posterior Root

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10
Q

Anterior Root contains axons from what neurons?

A

Motor

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11
Q

Posterior Root contains axons from what neurons?

A

Sensory

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12
Q

Spinal Nerve

A

When an anterior root and posterior root unite. Contain motor and sensory neurons.

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13
Q

Spinal Nerve splits into what two main branches?

A

Posterior Ramus and Anterior Ramus

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14
Q

Posterior Ramus

A

Innervates skin of back, deep back muscles

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15
Q

Anterior Ramus

A

Innervates everything else from the neck inferiorly

Also forms Nerve Plexus

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16
Q

Nerve Plexus

A

A network of converging and/or diverging axons

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17
Q

Cervical Plexus Location

A

Anterior Rami of C1-C5

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18
Q

Cervical Plexus Innervates the Following

A

Sensory: SKIN of neck, ear, and shoulders
Motor: Anterior neck muscles

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19
Q

Phrenic Nerve

A

Recieves SOME axons from Cervical Plexus. If you damage this nerve, you will stop breathing

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20
Q

Phrenic Nerve Supplies..

A

Diaphragm, and keeps it alive. In Anterior Ramus C3-C5

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21
Q

Brachial Plexus Location

A

Anterior Rami of C5-T1

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22
Q

Brachial Plexus

A

Primarily innervates upper limb

Each nerve has both motor and sensory components

23
Q

Axillary Nerve saying

A

“Whats the function of this nerve”

24
Q

Axillary Nerve Location

A

Deltoid and Teres Minor

25
Q

Axillary Nerve Sensory

A

Lateral Shoulder

26
Q

Axillary Nerve Motor

A

Abduct deltoid muscle and rotate (?) teres minor muscle.

27
Q

Brachial Plexus Components

A 
Axillary Nerve
Musculocutaneous Nerve
Radial Nerve
Median Nerve
Ulnar Nerve
28
Q

Musculocutaneous Nerve Sensory

A

Anterior Forearm

29
Q

Musculocutaneous Nerve Motor

A

Most muscles on the anterior surface of Arm
Coracobrachialis
Biceps Brachii
Brachialis

30
Q

Radial Nerve Sensory

A

Posterior Arm, Forearm, and Hand

31
Q

Radial Nerve Motor

A 
Posterior Arm
Posterior Forearm (Everything in the Posterior Forearm)
32
Q

Median Nerve Sensory

A

Lateral Palmar Side (Palm, with thumb facing right)

33
Q

Median Nerve Motor

A

Almost all anterior FOREARM muscles
THENAR muscles
Lumbricals going to fingers 2,3

34
Q

Ulnar Nerve Sensory

A

Medial Side (Pinky Side of Hand)

35
Q

Ulnar Nerve Motor (1)

A

1 1/2 anterior FOREARM muscles
Medial 1/2 of flexor digitorum profundus
Flexor Carpi Ulnaris

36
Q

Ulnar Nerve Motor (2)

A

Most intrinsic hand muscles
Hypothenar Muscles
Lumbricals to fingers 4,5
Palmar and Dorsal Interossei

37
Q

Lumbar Plexus Components

A

Femoral Nerve

Obturator Nerve

38
Q

Lumbar Plexus Location

A

Anterior Rami of L1-L5

39
Q

Lumbar Plexus

A

Innervates inferior abdominal wall, part of lower limb

Each nerve has motor and sensory components

40
Q

Femoral Nerve Sensory

A

Anterior Thigh Muscle

41
Q

Femoral Nerve Motor

A

Anterior Thigh Muscles

Quadriceps: Extends Knee and Contracts

42
Q

Obturator Nerve Sensory

A

Medial Thigh

43
Q

Obturator Nerve Motor

A

Medial Thigh

44
Q

Sacral Plexus Components

A

Sciatic Nerve

45
Q

Sciatic Nerve Components

A

Tibial Nerve

Common Fibular Nerve

46
Q

Sacral Plexus Location

A

Anterior Rami of L4-S5

47
Q

Sarcal Plexus

A

Innervates the buttocks, pelvic structures, and majority of lower limbs
Each nerve has motor and sensory components

48
Q

Tibial Nerve Sensory

A

Posterior Leg, Sole of Foot

49
Q

Tibial Nerve Motor

A

Most Posterior thigh muscles (hamstrings)

50
Q

Tibial Nerve ; Posterior Leg Muscles

A

Muscles on sole of foot

51
Q

Common Fibular Nerve Sensory

A

Anterior and Lateral Leg/Dosrum of Foot

52
Q

Common Fibular Nerve Motor

A

Anterior Leg Muscles
Lateral Leg Muscles
Muscles on Dorsum of Foot

53
Q

Gluteul Nerves Motor

A

Gluteus Maximus (Extend Hip) , Medius, Minimus (Abduct)

ANAT-A 215 Exam 3 (16 decks)

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