Chapter 14

Question 1

Portion of the CNS extending down from the medulla oblongata to conus medullaris

Answer 1

Spinal cord

Question 2

High concentration of myelinated axons

Answer 2

White Matter

Question 3

High concentration of somas, dendrites, neuroglia

Answer 3

Gray matter

Question 4

Somas for somatic motor

Answer 4

Anterior horn

Question 5

Somas for visceral motor neurons

Answer 5

Lateral horn

Question 6

Interneurons and sensory neurons communicating with them

Answer 6

posterior horn

Question 7

Unmyelinated axons extending from left/right sides with central canal in the center

Answer 7

Gray commissure

Question 8

What are the 4 functional groups of the spinal cord?

Answer 8

Somatic sensory nucleus, visceral sensory, somatic motor, autonomic motor

Question 9

Transmits sensory information about crude touch, pressure, pain, temperature

Answer 9

Spinothalmalic pathway

Question 10

Transmits sensory information about proprioception, fine touch, precise pressure, vibration

Answer 10

Posterior column pathway

Question 11

Transmits sensory information about proprioception related to posture from joints, muscles, tendons

Answer 11

Spinocerebellar pathway

Question 12

Carries commands for conscious control of skeletal muscle

Answer 12

Direct pathway

Question 13

Extend from primary cortex to brainstem carrying commands for skeletal muscle of the face and tongue

Answer 13

Corticobulbar tracts

Question 14

Extend from primary motor cortex through spinal cord carrying commands for remaining skeletal muscle

Answer 14

Corticospinal tracts

Question 15

Carries commands for reflexive control of skeletal muscle

Answer 15

indirect pathway

Question 16

Primarily control muscle tone and gross movement of neck, trunk, proximal limb muscle

Answer 16

Medial pathway

Question 17

Primarily control muscle tone and precise movement of distal portion of the limbs

Answer 17

Lateral pathway

Question 18

Rapid, automatic involuntary response to a stimulus

Answer 18

Reflex

Question 19

Processing site for reflex is in the spinal cord

Answer 19

Spinal reflex

Question 20

Processing site for reflex is in the brain

Answer 20

Cranial reflex

Question 21

Utilize skeletal muscle as an effector

Answer 21

Somatic Reflex

Question 22

Utilize gland, smooth muscle, cardiac muscle as the effector

Answer 22

Visceral reflex

Question 23

Utilize interneurons to facilitate sensory motor communication

Answer 23

Polysynaptic reflex

Question 24

Sensory neuron directly stimulate motor neuron

Answer 24

Monosynaptic reflex

Question 25

Receptor and effector are on the same side of the body

Answer 25

Ipsilateral reflex

Question 26

Receptor and at least 1 effector are on the opposite side of the body

Answer 26

Contralateral reflex

Question 27

Responses to stimuli you are born with

Answer 27

Innate

Question 28

Responses to stimuli which are developed over time

Answer 28

Acquired

Question 29

Used to protect muscles from over stretching

Answer 29

Stretch reflex

Question 30

Used to protect muscles from over contracting

Answer 30

Golgi tendon reflex

Question 31

Used to withdraw body part away from painful stimulus

Answer 31

Withdraw reflex

Question 32

Used to transfer weight during withdraw reflex to maintain balance

Answer 32

Cross-Extensors reflex

Question 33

Protective connective tissue layers which are continuous from spinal cord to brain

Answer 33

Meninges

Question 34

Located between dura mater and vertebrae

Answer 34

Epidural space

Question 35

Protective vertebral structure

Answer 35

Vertebrae

Question 36

Opening in vertebrae for spinal cord to pass through

Answer 36

Vertebral foramen

Question 37

Innervate muscle and skin of back

Answer 37

Dorsal rami

Question 38

Innervates limbs, and the lateral/anterior of trunk

Answer 38

Ventral rami

Question 39

Contains axons of autonomic system neurons

Answer 39

Communicating rami

Question 40

Specific regions of the skin inverted by spinal nerve pairs is mapped out as _____

Answer 40

Dermatome