Chapter 3

Question 1

Soma

Answer 1

Cell body of a neuron.

Question 2

Myelin Sheath

Answer 2

Insulating material that catches some axons.

Question 3

Axons

Answer 3

Fiber that carries signals away from soma to other cells.

Question 4

Terminal Buttons

Answer 4

Small knobs (at the end of axons) that release neurotransmitters at synapses.

Question 5

Glia

Answer 5

Cells that support neurons and contribute to signaling in the nervous system.

Question 6

Acetylcholine (Neurotransmitter’s behavior)

Answer 6

Released by neurons that control skeletal muscles.

Question 7

Serotonin (Neurotransmitter’s behavior)

Answer 7

Involved w/ sleep, arousal & aggression. Abnormal levels linked to depression.

Question 8

Dopamine (Neurotransmitter’s behavior)

Answer 8

Abnormal levels linked to schizophrenia. Activated by cocaine and Amphetamines.

Question 9

GABA (Neurotransmitter’s behavior)

Answer 9

Inhibitory transmitter that contributes to regulation of anxiety.

Question 10

Endorphins (Neurotransmitter’s behavior)

Answer 10

Opiate-like chemicals involved in modulation of pain.

Question 11

Mirror Neurons

Answer 11

Monkey see, monkey do.

Question 12

Functions of Neurons

Answer 12

To conduct, receive, or transmit impulses in the nervous system.

Question 13

Nervous System divided into two parts called

Answer 13

Central Nervous System & Peripheral Nervous System.

Question 14

Central Nervous System is separated into two parts:

Answer 14

Brain & Spinal cord

Question 15

Peripheral Nervous System is separated into two parts:

Answer 15

Somatic Nervous System & Autonomic Nervous System.

Question 16

Somatic Nervous System is made up of

Answer 16

Nerves to voluntary muscles, sensory receptors.

Afferent & Efferent

Question 17

Autonomic Nervous System is made up of

Answer 17

Nerves to heart, blood vessels, smooth muscles, & glands.
Sympathetic division & parasympathetic division.

Question 18

Afferent

Answer 18

Incoming nerves

Question 19

Efferent

Answer 19

Outgoing nerves

Question 20

Sympathetic Division

Answer 20

Mobilizes body resources

Question 21

Parasympathetic division

Answer 21

Conserves bodily resources

Question 22

Cerebellum

Answer 22

Coordinates fine muscle movement & balance.

Question 23

Limbic System is

Answer 23

Loosely connected network that contributes to emotions, memory, motivation and reward.

Question 24

Limbic System includes

Answer 24

Hippocampus & Amygdala

Question 25

Hippocampus

Answer 25

Contributes to memory

Question 26

Occipital Lobes

Answer 26

Primary visual cortex. (Sight)

Question 27

Temporal lobes

Answer 27

Primary auditory cortex. (Hearing)

Question 28

Parietal lobes

Answer 28

Primary somatic-sensory cortex. (Touch)

Question 29

Frontal lobes

Answer 29

Primary motor cortex (do)

Question 30

Prefrontal Cortex is located in the

Answer 30

Frontal lobes

Question 31

Prefrontal cortex used for

Answer 31

Planning and organization.

Question 32

Left hemisphere of the brain is responsible for

Answer 32

Verbal processing, language, speech, reading, & writing.

Question 33

Right hemisphere is responsible for

Answer 33

Nonverbal processing, musical processing, and visual recognition tasks.

Question 34

Closer relatives share _____ genetic overlap.

Answer 34

Greater

Question 35

Genetic Mapping puts effort into linking:

Answer 35

Specific genes to specific traits.

Question 36

Research indicates that most behavioral qualities are influenced jointly by:

Answer 36

Heredity & environment