Nervous System

Question 1

Gathering information; monitors changes occurring inside and outside the body

Answer 1

Sensory Input

Question 2

What are the changes called in our internal/external environment?

Answer 2

Stimuli

Question 3

Processes and interprets sensory input and decide if action is needed

Answer 3

Integration

Question 4

Response to integrated stimuli – response activates our galnds

Answer 4

Motor Output

Question 5

What are the components of the Nervous System?

Answer 5

Brain, Spinal Cord, and Nerves

Question 6

Basic unit of the Nervous System

Answer 6

Neurons/nerve cells

Question 7

Specialized cells that conduct impulses to and from the brain

Answer 7

Neurons

Question 8

Main processing center of the cell

Answer 8

Cell body/Soma

Question 9

Thin branching extensions of the cell body

Answer 9

Dendrites

Question 10

Essential for the speed and timing of the neurons/delivery impulses

Answer 10

Nodes of Ranvier

Question 11

Myelinating cell of the PNS and support cells of peripheral neurons;cells that wrap around axon

Answer 11

Schwan Cell

Question 12

Bring nerve impulses toward the body

Answer 12

Dendrites

Question 13

Bring nerve impulses away from the body

Answer 13

Axon

Question 14

Acts as an insulator

Answer 14

Myelin Sheath

Question 15

Unmyelinated nerve fiber; important in decision making

Answer 15

Gray matter

Question 16

Myelinated nerve fiber; important in immediate response

Answer 16

White matter

Question 17

Where are reflexed that require immediate response processed?

Answer 17

In the spinal cord

Question 18

• where integration takes place
• includes the brain and a nerve cord

Answer 18

Central Nervous System

Question 19

• brings information in and out of the CNS
• consists of many nerves that branch out from your CNS all over your body

Answer 19

Peripheral Nervous System

Question 20

• consists of right and left hemispheres that both perform complex processes

Answer 20

Cerebrum

Question 21

The 4 lobes of the brain

Answer 21

Frontal, occipital, parietal, and temporal

Question 22

The functions of each lobe of the brain

Answer 22

Frontal - understanding/knowledge
Occipital - sight
Parietal - speaking/bodily awareness
Temporal - hearing

Question 23

Autoimmune disease that affects brain & spinal cord and is caused by a damaged myelin sheath

Answer 23

Multiple Sclerosis

Question 24

Connects the left and right cerebral hemispheres; bigger in females

Answer 24

Corpus Callosum

Question 25

How many parts does the diencephalon consist of?

Answer 25

3

Question 26

What are the 3 parts of the diencephalon?

Answer 26

1. Epithalamus 2. Thalamus 3. Hypothalamus

Question 27

Consists of the pineal gland which generates cerebrospinal fluid from blood and produces melatonin

Answer 27

Epithalamus

Question 28

Main input center for the cerebrum; main output center for motor information

Answer 28

Thalamus

Question 29

Regulates homeostasis and basic survival behaviors (feeding, fighting, reproducing)

Answer 29

Hypothalamus

Question 30

What is the cerebrospinal fluid for?

Answer 30

It acts as a cushion in the form of liquid for the brain and spine

Question 31

Consists of the midbrain, pons, and medulla oblongata

Answer 31

Brain stem

Question 32

Contains centers for receipt and integration of sensory information

Answer 32

Midbrain

Question 33

* mini brain * important in coordination * responsible for locomotor skills

Answer 33

Cerebellum