Chapter 14 Flashcards Preview

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Flashcards in Chapter 14 Deck (40):
1

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

Spinal cord

2

High concentration of myelinated axons

White Matter

3

High concentration of somas, dendrites, neuroglia

Gray matter

4

Somas for somatic motor

Anterior horn

5

Somas for visceral motor neurons

Lateral horn

6

Interneurons and sensory neurons communicating with them

posterior horn

7

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

Gray commissure

8

What are the 4 functional groups of the spinal cord?

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

9

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

Spinothalmalic pathway

10

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

Posterior column pathway

11

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

Spinocerebellar pathway

12

Carries commands for conscious control of skeletal muscle

Direct pathway

13

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

Corticobulbar tracts

14

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

Corticospinal tracts

15

Carries commands for reflexive control of skeletal muscle

indirect pathway

16

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

Medial pathway

17

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

Lateral pathway

18

Rapid, automatic involuntary response to a stimulus

Reflex

19

Processing site for reflex is in the spinal cord

Spinal reflex

20

Processing site for reflex is in the brain

Cranial reflex

21

Utilize skeletal muscle as an effector

Somatic Reflex

22

Utilize gland, smooth muscle, cardiac muscle as the effector

Visceral reflex

23

Utilize interneurons to facilitate sensory motor communication

Polysynaptic reflex

24

Sensory neuron directly stimulate motor neuron

Monosynaptic reflex

25

Receptor and effector are on the same side of the body

Ipsilateral reflex

26

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

Contralateral reflex

27

Responses to stimuli you are born with

Innate

28

Responses to stimuli which are developed over time

Acquired

29

Used to protect muscles from over stretching

Stretch reflex

30

Used to protect muscles from over contracting

Golgi tendon reflex

31

Used to withdraw body part away from painful stimulus

Withdraw reflex

32

Used to transfer weight during withdraw reflex to maintain balance

Cross-Extensors reflex

33

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

Meninges

34

Located between dura mater and vertebrae

Epidural space

35

Protective vertebral structure

Vertebrae

36

Opening in vertebrae for spinal cord to pass through

Vertebral foramen

37

Innervate muscle and skin of back

Dorsal rami

38

Innervates limbs, and the lateral/anterior of trunk

Ventral rami

39

Contains axons of autonomic system neurons

Communicating rami

40

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

Dermatome