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Anatomy And Physiology > Spinal Cord And Nerves > Flashcards

Flashcards in Spinal Cord And Nerves Deck (17):
1

Cranial meninges

Encircle the brain

2

Plexus

A network of Axons

3

Dermatome

Area of the skin that provide sensory input to the CNS via one pair of spinal nerves

4

Spinal nerves

Path of communication between spinal cord and body

5

Posterior root ganglion

Cell body of sensory neuron

6

Anterior root ganglion

Axons of motor neurons conductin nerve impulses

7

Sensory Tract

Consists of axons that conduct nerve impulses to brain

8

Motor tracts

Axons that carry nerve impulse from brain

9

Reflex

Action occurring in response to stimulus

10

Three meningeal layers

Duramater
Arachnoid mater
Pia mater

11

Superior and inferior spinal cord

S- doula oblangata
I- 2nd lumbar

12

Function of spinal nerves

Communication between spinal cord and body

13

Protection of spinal cord

Vertebral column and meninges with mater

14

Cervical plexus
Brachial plexus
Lumbar plexus
Sacral plexus

C- skin and muscles if head. Neck And chest
B- shoulder and limb
L- Abdominal wall parts lower limbs and genitals
S- Butt and lower limbs

15

Spinothalamic tract vs posterior column

Spino senses pain, warmth coolness itching tickling deep pressure and crude touch
Posterior discriminates touch light pressure vibration and conscious proprioception

16

Five components of reflex arc

Sensory receptor
Sensory neuron
Integrating center
Motor neuron
Effector

17

Spinal meninges

Surround the spinal cord