Neuroanatomy

Question 1

What are the muscular innervations of the Dorsal Scapular nerve

Answer 1

Rhomboids

Levator Scapulae

Question 2

What are the muscular innervations of the Long thoracic nerve

Answer 2

Serratus Anterior

Question 3

What are the muscular innervations of Nerve to Subclavius

Answer 3

Subclavius

Question 4

What are the muscular innervations of the Suprascapular nerve

Answer 4

Infraspinatus

Supraspinatus

Question 5

What are the muscular innervations of the Lateral pectoral nerve

Answer 5

Pectoralis Major (clavicular head)

Question 6

What are the muscular innervations of the Musculocutaneous nerve

Answer 6

Biceps Brachii
Coracobrachialis
Brachialis

Question 7

What are the muscular innervations of the Lateral Median nerve

Answer 7

Flexor muscles of forearm (not flexor carpi ulnaris tho)

Question 8

What are the muscular innervations of the Medial Pectoral nerve

Answer 8

Pectoralis Major

Pectoralis Minor

Question 9

What are the muscular innervations of the Ulnar nerve

Answer 9

Flexor Carpi Ulnaris
Flexor Digitorum Profundus (pinky and ring finger)
Small muscles of the hand

Question 10

What are the muscular innervations of the Medial Median nerve

Answer 10

Flexor muscles of the forearm (except flexor carpi ulnaris)

Flexor Digitorum Profundus (pointer and middle finger)

Question 11

What are the muscular innervations of the Upper Scapular nerve.

Answer 11

Subscapularis

Question 12

What are the muscular innervations of the Throacodorsal nerve

Answer 12

Latissimus Dorsi

Question 13

What are the muscular innervations of the Lower Scapular nerve

Answer 13

Subscapularis

Teres Major

Question 14

What are the muscular innervations of the Axillary nerve

Answer 14

Deltoid

Teres Minor

Question 15

What are the muscular innervations of the Radial nerve

Answer 15

Brachioradialis
Triceps
Supinator
Wrist extensors
anconeus

Question 16

C3 myotomes

Answer 16

Trapezius

Splenius Capitis

Question 17

C4 myotomes

Answer 17

Trapezius Levator Scapulae

Question 18

C5 myotomes

Answer 18

Supraspinatus
Infraspinatus
Deltoid
Biceps

Question 19

C6 myotomes

Answer 19

Biceps
Supinator
Wrist Extensors

Question 20

C7 myotomes

Answer 20

Triceps

Wrist Flexors

Question 21

C8 myotomes

Answer 21

Ulnar deviators
Thumb extensors
Thumb adductors

Question 22

Reflexes for C5

Answer 22

Biceps or Brachioradialis

Question 23

Reflexes for C6

Answer 23

Biceps or Brachioradialis

Question 24

Reflexes for C7

Answer 24

Triceps

Question 25

Reflexes for C4

Answer 25

Levator Scap

Question 26

What does the Fasciculus Cuneatus do?

Answer 26

It is an ascending tract that collects sensory information from trunk neck and UE (proprioception, vibration, 2-pt discrimination, and graphesthesisa)

Question 27

What does the Fasciculus gracilis do?

Answer 27

It is an ascending tract that collects sensory information from from trunk and LE (proprioception, vibration, 2-pt discrimination, and graphesthesisa)

Question 28

What does the Spinocerebellar tract do? (dorsal and Ventral)

Answer 28

This is a sensory tract that ascends to the cerebellum for subconscious proprioception, muscle tension, joint sense and posture (dorsal= LE ; ventral =UE)

Question 29

What does the Anterior spinothalamic tract do?

Answer 29

sensory tract for light touch and pressure

Question 30

What does the Lateral spinothalamic tract do?

Answer 30

sensory tract for pain and temperature

Question 31

What does the Anterior Corticospinal tract do?

Answer 31

it is a pyramidal motor tract responsible for ipsilateral voluntary discrete skilled movements

Question 32

What does the Lateral Corticospinal tract do?

Answer 32

it is a pyramidal motor tract responsible for contralateral voluntary fine movements.

Question 33

What happens if the pyramidal tracts are injured?

Answer 33

positive babinski sign, absent superficial abdominal reflex and cremasteric reflex, loss of fine motor and or skilled movements

Question 34

What does the Tectospinal tract do?

Answer 34

it is an extrapyramidal tract that is responsible foe for contralateral postural muscle tone associated with auditory and visual stimuli