Chapter 3 - Human Genetics

Question 1

Central Nervous System (CNS)

Answer 1

brain/spinal cord (hint: encased in bone)

Question 2

Peripheral Nervous System (PNS)

Answer 2

outside brain/spinal cord

Question 3

Somatic Nervous System

Answer 3

voluntary/conscious activities, interacts with outside environment

Question 4

Autonomic Nervous System

Answer 4

unconscious; e.g. heart, blood vessels, regulation of internal environment

Question 5

Autonomic Nervous System includes:

Answer 5

sympathetic & parasympathetic nervous systems

Question 6

sympathetic nervous system

Answer 6

preparing body for stress-related activity

Question 7

parasympathetic nervous system

Answer 7

brings heightened functions back to normal

Question 8

Born with how many neurons

Answer 8

100 billion

Question 9

Cell body (soma) contains what?

Answer 9

the nucleus

Question 10

Dendrite

Answer 10

roots that receive messages

Question 11

Axon

Answer 11

extends like trunk, transmits impulses to other neurons

Question 12

Myelin

Answer 12

fatty substance that wraps around axon; minimizes leakage of electrical current

Question 13

neurotransmitters

Answer 13

chemicals that transmit signals

Question 14

where do neurotransmitters occur?

Answer 14

Synapse

Question 15

Serotonin

Answer 15

involved in: modulates mood. deficiencies linked to depression, ED’s, insomnia. SSRI’s help

Question 16

SSRI

Answer 16

Selective Serotonin Reuptake Inhibitor

Question 17

Dopamine

Answer 17

Controls movement, emotional response, pleasure/pain

Question 18

Schizophrenia & bipolar disorder linked to:

Answer 18

dopamine

Question 19

response to cocaine involves ____?

Answer 19

dopamine

Question 20

Norepinephrine

Answer 20

excitatory, speeds up HR; learning, memory & eating

Question 21

Mood disorders linked to

Answer 21

norepinephrine

Question 22

NRI’s

Answer 22

Norepinephrine Reuptake Inhibitor