Chapter 9 Flashcards Preview

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Flashcards in Chapter 9 Deck (31):
1

analgesic

drug that reduces pain

2

autonomic N/S

collection of nerves, ganglia, and plexsus through which visceral organs, heart, blood vessels, glands, and smooth (involuntary) muscles receive stimulation

3

Bell's Palsy

disorder that affects the facial nerve. The patient seems to have had a stroke on one side of the face. The eye does not close properly, the mouth drops, and there is numbness on the affected side.

4

biofeedback

a measurement of physiological responses that yields information about the relationship between the mind and the body and helps people learn how to manipulate those responses through mental activity

5

carpal tunnel syndrome

a condition that affects the median nerve and the flexor tendons that attach to the bones of the wrist

6

Cranial nerves

12 pairs which begin in areas of the brain

7

effector

the responding organs

8

electromyograph (EMG)

device used to measure electrical muscle activity

9

ergonomics

the application of biology and engineering to the relationship between the worker and their environment; also called biotechnology

10

femoral nerve

found in the lumbar plexus; stimulates the hip and leg

11

mixed nerve

contains both sensory (afferent) and motor (efferent) fibers

12

motor (efferent) nerve

nerve fibers carries impulses from the brain or spinal cord to muscles, organs, or glands

13

neuralgia

a sudden, severe, sharp, stabbing pain along the pathway of a nerve

14

neuritis

an inflammation of a nerve or a nerve trunk

15

parasympathetic system

division of the autonomic nervous system inhibits or opposes the effects of the sympathetic system; has two important active nerves: the vagus and the pelvic nerves

16

parasthesia

sensation of tingling, crawling or burning of skin

17

peripheral N/S

consists of all the nerves that connect the brain and spinal cord with sensory receptors, muscles, and glands

18

phrenic nerve

stimulates the diaphram

19

plexus

a network of spinal nerves

20

radial nerve

found in the brachial plexus; it stimulates the wrist and hand

21

receptor

sensory nerve that receives a stimulus and transmits it to the CNS

22

reflex

involuntary action; automatic response

23

sciatica

neuritis of the sciatic nerve

24

sciatic nerve

largest nerve in the body; originates in the sacrel plexus, runs through the pelvis and down the leg

25

sensory (afferent) nerve

nerve fibers carrying impulses to the brain or spinal cord from the muscles or glands

26

shingles (herpes zoster)

a virus infection of the nerve endings

27

somatic N/S

conducts impulses from the brain and the spinal cord to skeletal muscles

28

spinal nerves

31 pairs, originate in the spinal cord

29

stimulus

any change in environment

30

sympathetic system

consists primarily of two cords, beginning at the base of the brain and proceeding down both sides of the spinal column

31

trigeminal neuralgia

painful condition affecting the fifth cranial nerve; also known as tic douloureux