Chapter 3

Question 1

Neurons

Answer 1

Cells in the nervous system that communicate with one another to perform information-processing tasks

Question 2

Cell Body

Answer 2

part of a Neuron that coordinates information-processing tasks and keeps the cell alive

Question 3

Dendrite

Answer 3

part of a Neuron that receives information from other Neurons and relays it to the cell body

Question 4

Axon

Answer 4

Part of a Neuron that transmits information to other Neurons, muscles, or glands

Question 5

Myelin Sheath

Answer 5

An insulating layer of fatty material (They cover the axons)

Question 6

Glial Cells

Answer 6

Support cells found in the nervous system (Compose the Myelin Sheath)

Question 7

Synapse

Answer 7

The junction or region between the axon of one Neuron and the dendrites or cell body of another

Question 8

Sensory Neurons

Answer 8

Receive information from the external world and convey this information to the brain via the spinal chord.

Question 9

Motor Neurons

Answer 9

Carry signals from the spinal chord to the muscles to produce movement

Question 10

Interneurons

Answer 10

Connect the sensory Neurons, motor Neurons, or other interneurons.

Question 11

Resting Potential

Answer 11

K+ flow free

Question 12

Action Potential

Answer 12

K+ closes and Na+ opens

Question 13

Neurotransmitters

Answer 13

chemicals that fill synapse

Question 14

Agonist

Answer 14

drugs that enhance neurotransmitter’s actions

Question 15

Antagonists

Answer 15

Drugs that inhibit neurotransmitter’s actions

Question 16

2 Major divisions of the nervous system

Answer 16

central and peripheral

Question 17

What is the central nervous system composed of?

Answer 17

Brain and spine

Question 18

whats the peripheral nervous system do?

Answer 18

connects the CNS with organs and muscles

Question 19

somatic nervous system

Answer 19

we control (Emotions etc)

Question 20

Autonomic Nervous system

Answer 20

Self regulated actions (Breathing)

Question 21

What does the forebrain do?

Answer 21

Controls cognitive, emotions, motor etc

Question 22

2 parts of forebrain

Answer 22

cerebral cortex and subcortical structures

Question 23

Midbrain functions?

Answer 23

orientation and movement

Question 24

2 parts of midbrain?

Answer 24

tectum and tegementum

Question 25

whats the tectum do?

Answer 25

orients and animal

Question 26

3 parts of the hindbrain?

Answer 26

medulla, reticular formation, pons

Question 27

whats the medulla do

Answer 27

controls heart rate, circulation and respiration

Question 28

whats the reticular formation do?

Answer 28

sleep, wakefulness and arousal

Question 29

whats the pons do?

Answer 29

relays info from cerebellum to the rest of the brain

Question 30

what does the subcortical structures do?

Answer 30

control emotions and basic drives

Question 31

whats the thalamus do?

Answer 31

relays info from senses to the cerebral cortex

Question 32

hypothalamus

Answer 32

regulates body temp, hunger, thirst etc

Question 33

pituitary gland

Answer 33

hormone producing gland

Question 34

Hippocampus

Answer 34

new memories and knowledge

Question 35

amyglada

Answer 35

emotional memories

Question 36

occipital lobe

Answer 36

visual info

Question 37

parietal lobe

Answer 37

touch/senses

Question 38

temporal lobe

Answer 38

hearing and language

Question 39

frontal lobe

Answer 39

planning movement etc.