Anatomy - Spinal Nerves

Question 1

what does each pair of spinal nerves supply?

Answer 1

one segment of the body wall

Question 2

what do each pair of spinal nerves supply a body wall segment with?

Answer 2

somatic general sensory
somatic motor
sympathetic motor
reflex functions

Question 3

what area is test to test the motor function of a spinal nerve?

Answer 3

myotome

Question 4

what area is tested to test the sensory function of a spinal nerve?

Answer 4

dermatome

Question 5

what is tested to test motor and sensory function of a spinal nerve at the same time?

Answer 5

spinal cord reflexes

Question 6

what can spinal nerve testing be used to determine?

Answer 6

the location of a pathology

Question 7

where is the nerve point of the neck located?

Answer 7

just above the midpoint of the posterior border of the SCM

Question 8

what group of nerves arise at the nerve point of the neck?

Answer 8

the sensory nerves of the cervical plexus

Question 9

what nerve supply the posterior parts of the back dermatomes?

Answer 9

the posterior rami

Question 10

what myotome is tested by abduction of the shoulder joint?

Answer 10

C5

deltoid

Question 11

what myotome is tested by adduction of the shoulder joint?

Answer 11

C7

pectoralis major and latissimus dorsi

Question 12

what myotome is tested by flexion of the finger joints?

Answer 12

C8

digit flexors

Question 13

what myotome is tested by extension of the finger joints?

Answer 13

C7

(digit extensors(

Question 14

what myotome is tested by abduction of the finger joints?

Answer 14

T1

dorsal interossei

Question 15

what myotome is tested by adduction of the finger joints?

Answer 15

T1

palmar interossei

Question 16

what myotome is tested by flexion of the elbow joint?

Answer 16

C5 and C6

biceps brachii

Question 17

what myotome is tested by extension of the elbow joint?

Answer 17

C7 and C8

triceps brachii

Question 18

what myotome is tested by flexion of the wrist joint?

Answer 18

C6 and C7

carpal flexors

Question 19

what myotome is tested by extension of the wrist joint?

Answer 19

C6 + C7

carpal extensors

Question 20

what myotome is tested by flexion of the hip joint?

Answer 20

L2 and L3

psoas major

Question 21

what myotome is tested by extension of the hip joint?

Answer 21

L5 and S1

gluteus max and hamstrings

Question 22

what myotome is tested by flexion of the knee joint?

Answer 22

L5 and S1

hamstrings

Question 23

what myotome is tested by extension of the knee joint?

Answer 23

L3 and L4

hamstrings

Question 24

what myotome is tested by dorsiflexion of the ankle?

Answer 24

L4 and L5

tibialis anterior

Question 25

what myotome is tested by plantar flexion of the ankle?

Answer 25

S1 and S2

gastrocnemius and soles

Question 26

what myotome is tested by inversion of the ankle?

Answer 26

L4

(tibialis anterior and posterior

Question 27

what myotome is tested by eversion of the ankle joint?

Answer 27

L5 and S1

fibulas Longus and brevis

Question 28

what is a reflex?

Answer 28

an involuntary response to a stimulus

Question 29

what makes a muscle paralysed?

Answer 29

when it doesn’t have a functioning motor nerve supply and cannot contract

Question 30

what would be seen on examination of a paralysed muscle?

Answer 30

reduced tone

Question 31

what makes a muscle spastic?

Answer 31

descending controls from the brain not working

Question 32

what is seen on examination of a spastic muscle?

Answer 32

increased tone