Lecture 10 - Nervous System

Question 1

parts of the brainstem

Answer 1

• > pons
• > medula
• > midbrain

Question 2

lobes of the cerebrum

Answer 2

• > fontal
• > occipital
• > temporal
• > parietal

Question 3

characteristics of the cervical nerves

Answer 3

• > 8 cervical nerves
• > the # of nerve goes above the same number vertebrae
• > C1 has cranial nerve 1 above and CN2 below

Question 4

characteristics of the lumbar region of the spine

Answer 4

• > # of nerve goes under the corresponding nerve
• > the nerves/lumbrosacral enlargement only go to around L2
• > cauda equina extend the nerves to their vertebrae

Question 5

characteristics of thoracic nerves

Answer 5

Question 6

parts of a spinal nerve

Answer 6

Question 7

white vs grey matter

Answer 7

The central nervous system of the brain is made up of two kinds of tissue: grey matter and white matter. The grey matter contains the cell bodies, dendrites and the axon terminals, where all synapses are. The white matter is made up of axons, which connect different parts of grey matter to each other

Question 8

from deep to superficial meninges and what do they do

Answer 8

• > pia mater
• > arachnoid mater
• > dura mater

they are three layers of membranes that protect the brain and spinal cord

Question 9

what is the brachial plexus

Answer 9

collection of nerves

• > where arm nerves attach to spinal cord
• > C5, C6, C7, C8, T1

Question 10

what are main nerves that innervate the upperlimb

Answer 10

• > musculocutaneuous
• > median
• > radial
• > ulnar
• > auxillary

Question 11

draw the brachila plexus

Answer 11

Rugby Team Drink Cold (Beer) Nightly

Question 12

which muscles are innervated by the musculocutaneous nerve

Answer 12

Question 13

which muscles are innervated by the axillary nerve

Answer 13

Question 14

which muscles are innervated by the radial nerve

Answer 14

Question 15

which muscles are innervated by the median nerve

Answer 15

Question 16

which muscles are innervated by the ulnar nerve

Answer 16

Question 17

dermatomes

Answer 17

Question 18

what causes waiters tip deformity

Answer 18

• > damage/injury to upper brachial plexus

Question 19

claw hand deformity

Answer 19

• > caused by damage/injury to lower brachial plexus

Question 20

thoracic outlet syndrome

Answer 20

Thoracic outlet syndrome (TOS) is a group of disorders that occur when blood vessels or nerves in the space between your collarbone and your first rib (thoracic outlet) are compressed. This can cause shoulder and neck pain and numbness in your fingers

• > happens to people who do alot of overhead motion

Question 21

muscle that elevate the shoulder and what innervates them

Answer 21

upper traps

• > accessory

levator scapulae

• > accessory

rhomboids

• > dorsal scapular nerve

Question 22

muscles that depress the shoulder and the nerve that innervates them

Answer 22

Lower traps

• > Accessory nerve

Question 23

muscles that rotate the shoulder upward and the innervating nerve

Answer 23

Upper and lower traps

• > accessory nerve

Serratus anterior

• > long thoracic nerve

Question 24

muscles responsible for downward rotation of the shoulder and their nerves

Answer 24

Rhomboids

• > dorsal scapular nerve

Levator scapulae

• > accessory nerve

Question 25

muscles that protract and retract the shoulder and their innervating nerves

Answer 25

***Protraction*** **Serratus anterior** - \> long thoracic nerve ***Retraction*** **Midtraps** - \> accessory **Rhomboids** - \> dorsal scapular nerve

Question 26

muscle/nerve responsible for shoulder Abduction

Answer 26

**deltoids** - \> axillary nerve

Question 27

muscle/nerve responsible for shoulder adduction

Answer 27

Pec major Teres major Lattisimus dorsi - \> C5, C6, C7

Question 28

muscle/nerves responsible for shoulder flexion and extension

Answer 28

**Flexion (C5)** Deltoid Pec Major Coracobrachialis **Extension (C6,7,8)** Lats Teres Major

Question 29

muscles and nerves responsible for elbow flexion

Answer 29

**Musculocutaneous nerve (C5)** Biceps brachii Brachialis Radial Nerve (C6) **Brachioradialis**

Question 30

muscles and nerves responsible for shoulder extension

Answer 30

**Radial Nerve (C7)** - \> triceps brachii

Question 31

muscles and nerves responsible for wrist flexion

Answer 31

Medial Nerve **(C7)** - \> flexor carpi radialis Ulnar Nerve **(C7)** - \> flexor carpi ulnaris

Question 32

muscles and nerves responsible for wrist extension

Answer 32

Radial **(C6)** - \> Extensor carpi radialis longus - \> extensor carpi radialis brevis - \> extensor carpi ulnaris

Question 33

common auxillary nerve issues

Answer 33

can be injured from shoulder dislocation

Question 34

common radial nerve issues

Answer 34

- \> can be injured with a mid humeral fracture

Question 35

common ulnar nerve injuries

Answer 35

can be entrapped at the elbow or the wrist

Question 36

common issues with the median nerve

Answer 36

can be entrapped at the cubital fossa, by pronator teres or carpal tunnel

Question 37

common issues of the musculocutaneuous nerve

Answer 37

can become entrapped by the coracobrachialis

Question 38

muscles and nerves responsible for forearm pronation and supination

Answer 38

**Pronation (C7, C8)** **Median Nerve** - \> pronator teres - \> pronator quatrus **Supination (C6)** **Radial Nerve** - \> supinator **Musculocutaneuos** - \> biceps

Question 39

Muscles and nerves responsible for finger flexion and Extension

Answer 39

**Flexion (C8)** **Median Nerve and Ulnar nerve** - \> flexor digitorum superficialis - \> flexor digitorum profundus **Extension (C7)** **Radial Nerve** - \> extensor digitorum

Question 40

muscles/ nerves personable for finger abd/adduction

Answer 40

**T1** **Adduction/Abduction** **ulnar nerve** - \> interossei muscles