Spinal Nerves

Question 1

Spinal Cord Location

Answer 1

Comes directly off of the Spinal Cord

Question 2

How many pairs of Spinal Nerves?

Answer 2

31

Question 3

Dermatone

Answer 3

Part of skin innervated by nerve

Question 4

How many Cranial Nerves?

Answer 4

8

Question 5

How many Thoracic Spinal Nerves?

Answer 5

12

Question 6

How many Lumbar Spinal Nerves

Answer 6

5

Question 7

How many Sacral Spinal Nerves?

Answer 7

5

Question 8

How many Coccygeal Spinal Nerves?

Answer 8

1

Question 9

Spinal Nerve formed from..

Answer 9

Anterior Root and Posterior Root

Question 10

Anterior Root contains axons from what neurons?

Answer 10

Motor

Question 11

Posterior Root contains axons from what neurons?

Answer 11

Sensory

Question 12

Spinal Nerve

Answer 12

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

Question 13

Spinal Nerve splits into what two main branches?

Answer 13

Posterior Ramus and Anterior Ramus

Question 14

Posterior Ramus

Answer 14

Innervates skin of back, deep back muscles

Question 15

Anterior Ramus

Answer 15

Innervates everything else from the neck inferiorly

Also forms Nerve Plexus

Question 16

Nerve Plexus

Answer 16

A network of converging and/or diverging axons

Question 17

Cervical Plexus Location

Answer 17

Anterior Rami of C1-C5

Question 18

Cervical Plexus Innervates the Following

Answer 18

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

Question 19

Phrenic Nerve

Answer 19

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

Question 20

Phrenic Nerve Supplies..

Answer 20

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

Question 21

Brachial Plexus Location

Answer 21

Anterior Rami of C5-T1

Question 22

Brachial Plexus

Answer 22

Primarily innervates upper limb

Each nerve has both motor and sensory components

Question 23

Axillary Nerve saying

Answer 23

“Whats the function of this nerve”

Question 24

Axillary Nerve Location

Answer 24

Deltoid and Teres Minor

Question 25

Axillary Nerve Sensory

Answer 25

Lateral Shoulder

Question 26

Axillary Nerve Motor

Answer 26

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

Question 27

Brachial Plexus Components

Answer 27

``` Axillary Nerve Musculocutaneous Nerve Radial Nerve Median Nerve Ulnar Nerve ```

Question 28

Musculocutaneous Nerve Sensory

Answer 28

Anterior Forearm

Question 29

Musculocutaneous Nerve Motor

Answer 29

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

Question 30

Radial Nerve Sensory

Answer 30

Posterior Arm, Forearm, and Hand

Question 31

Radial Nerve Motor

Answer 31

``` Posterior Arm Posterior Forearm (Everything in the Posterior Forearm) ```

Question 32

Median Nerve Sensory

Answer 32

Lateral Palmar Side (Palm, with thumb facing right)

Question 33

Median Nerve Motor

Answer 33

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

Question 34

Ulnar Nerve Sensory

Answer 34

Medial Side (Pinky Side of Hand)

Question 35

Ulnar Nerve Motor (1)

Answer 35

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

Question 36

Ulnar Nerve Motor (2)

Answer 36

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

Question 37

Lumbar Plexus Components

Answer 37

Femoral Nerve | Obturator Nerve

Question 38

Lumbar Plexus Location

Answer 38

Anterior Rami of L1-L5

Question 39

Lumbar Plexus

Answer 39

Innervates inferior abdominal wall, part of lower limb | Each nerve has motor and sensory components

Question 40

Femoral Nerve Sensory

Answer 40

Anterior Thigh Muscle

Question 41

Femoral Nerve Motor

Answer 41

Anterior Thigh Muscles | Quadriceps: Extends Knee and Contracts

Question 42

Obturator Nerve Sensory

Answer 42

Medial Thigh

Question 43

Obturator Nerve Motor

Answer 43

Medial Thigh

Question 44

Sacral Plexus Components

Answer 44

Sciatic Nerve

Question 45

Sciatic Nerve Components

Answer 45

Tibial Nerve | Common Fibular Nerve

Question 46

Sacral Plexus Location

Answer 46

Anterior Rami of L4-S5

Question 47

Sarcal Plexus

Answer 47

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

Question 48

Tibial Nerve Sensory

Answer 48

Posterior Leg, Sole of Foot

Question 49

Tibial Nerve Motor

Answer 49

Most Posterior thigh muscles (hamstrings)

Question 50

Tibial Nerve ; Posterior Leg Muscles

Answer 50

Muscles on sole of foot

Question 51

Common Fibular Nerve Sensory

Answer 51

Anterior and Lateral Leg/Dosrum of Foot

Question 52

Common Fibular Nerve Motor

Answer 52

Anterior Leg Muscles Lateral Leg Muscles Muscles on Dorsum of Foot

Question 53

Gluteul Nerves Motor

Answer 53

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