Chapter 7:6

Question 0

Neuron

Answer 0

Basic structural unit of nervous system

Question 1

Nervous System

Answer 1

Complex highly organized system that coordinates all activities of the body

Question 2

Dendrites

Answer 2

Carry impulses toward the cell body

Question 3

Axon

Answer 3

Single nerve fiber, carries impulses away from the cell body

Question 4

Neurotransmitter

Answer 4

Located at the end of each axon.

Allow the nerve impulses to pass from one neuron to another

Question 5

Nerve

Answer 5

Combination of many nerve fibers outside brain and spinal cord

Question 6

Two main divisions of nervous system

Answer 6

Central and Peripheral

Question 7

Central nervous system

Answer 7

Consists of the brain and spinal cord

Question 8

Peripheral nervous system

Answer 8

Consists of the nerves has two divisions

Somatic and Autonomic

Question 9

Brain

Answer 9

Mass of nerve tissue protected by the skull

Question 10

Cerebellum

Answer 10

Coordinates muscles, balance, and posture

Question 11

Cerebrum

Answer 11

Center of reasoning, thought, and memory

Question 12

Medulla Oblongata

Answer 12

Regulates heartbeat and respiration

Question 13

Meninge

Answer 13

Membranes covering brain and spinal cord

Question 14

Midbrain

Answer 14

Conducts impulses between brain parts controls some eye reflexes

Question 15

Neuron

Answer 15

Basic structural unit of nervous system

Question 16

Parasympathetic

Answer 16

Counter acts the actions of the sympathetic system by slowing heart rate, decreasing respiration,lowering blood pressure, and increasing activity in digestive tract

Question 17

Pons

Answer 17

Section located below the midbrain and brain stem

Question 18

Spinal cord

Answer 18

Continues down from the medulla Oblongata and ends at the first or second lumbar vertebrae

Responsible for many reflex actions and carrying sensory (afferent) messages

Question 19

Synapse

Answer 19

Spaces between the axon of a neuron and the dendrites of other neurons

Question 20

Ventricle

Answer 20

Hollow spaces located in brain

Question 21

Diencephalon

Answer 21

Section located between the cerebrum and midbrain

Question 22

Thalamus

Answer 22

Acts a relay center and directs sensory impulses to cerebrum

Allows conscious recognition of pain and temperature

Question 23

Hypothalamus

Answer 23

Regulates and controls the autonomic nervous system, temperature, appetite, water balance,

Question 24

Somatic nerve system

Answer 24

Consists of 12 pairs of cranial nerves and their branches 31 pairs of spinal nerves and their branches

Question 25

Cerebrospinal fluid

Answer 25

- Clear colorless fluid - Circulates continuously between the ventricles and through the subarachnoid space - Serves as shock absorber to protect and spinal cord

Question 26

Encephalitis

Answer 26

Inflammation of the brain caused by a virus, bacterium, chemical agent, or as a complication of measles, chicken pox, or mumps.