Nervous System

Question 0

Named for the cranial bones that lie over them

Answer 0

Lobes

Question 1

White substance of the CNS; myelinated nerve fibers

Answer 1

White mater

Question 2

“Furrows”; shallow grooves on the cerebral hemispheres

Answer 2

Sulci

Question 3

Rapid, predictable, and involuntary responses to stimuli

Answer 3

Reflexes

Question 4

A tight coil of wrapped membranes that enclose the axon; whitish, fatty material

Answer 4

Myelin sheath

Question 5

Cling to neurons, bracing them and anchoring them to their nutrient supply line; the blood capillaries (make exchanges)

Answer 5

Astrocytes

Question 6

3 connective tissue membranes covering and protecting the CNS structures

Answer 6

Meninges

Question 7

The gray area of the CNS; contains unmyelinated nerve fibers and nerve cell bodies

Answer 7

Gray matter

Question 8

Deep grooves that separate parts of the brain

Answer 8

Fissures

Question 9

“Twisters”; elevated ridges of tissue on the surface of the cerebral hemispheres

Answer 9

Gyri

Question 10

Nerve impulses; it’s an all or none response

Answer 10

Action potential

Question 11

Form myelin sheaths around nerve fibers that are found in the CNS

Answer 11

Schwann cells

Question 12

The fluid produced in the cerebral ventricles; fills the ventricles and surround the CNS

Answer 12

Cerebrospinal fluid

Question 13

“Spider”; middle meningeal layer

Answer 13

Arachnoid matter

Question 14

“Gentle mother”; innermost membrane; clings tightly to the surface of the brain and spinal cord

Answer 14

Pia matter

Question 15

“Tough mother”; double-layered membrane that surrounds the brain

Answer 15

Dura matter

Question 16

Regulates involuntary muscle activity; includes smooth and cardiac muscles

Answer 16

Autonomic nervous system

Question 17

Carries impulses from the CNS to effector organs, muscles, and glands

Answer 17

Motor (efferent) division

Question 18

Consist of nerves that extend from the brain and spinal cord

Answer 18

Peripheral nervous system (PNS)

Question 19

The process where the sensory input is interpreted and decisions are made about what should be done at each moment

Answer 19

Integration

Question 20

Information gathered by stimuli from sensory receptors to monitor changes

Answer 20

Sensory input

Question 21

Consist of the BRAIN AND SPINAL CORDS

Answer 21

Central nervous system (CNS)

Question 22

Consist of nerve fibers that convey impulses to the CNS

Answer 22

Sensory (afferent) division

Question 23

Allows us to voluntarily control out skeletal muscles

Answer 23

Somatic nervous system

Question 24

“Nerve glue”; many types of cells that support, insulate, and protect the delicate neurons

Answer 24

Neuralgia