Lesson 30 Lecture Notes

Question 1

A neuron has how many parts?

Answer 1

Dendrites (hairlike extensions), Soma (cell body), Axon (tail), Axon terminals (puts out neurotransmitters)

Question 2

The myelin sheath is made of

Answer 2

glial cells

Question 3

Sensory neurons detect

Answer 3

sensory stimuli

Question 4

How many kinds of neurons are there?

Answer 4

Sensory, interneurons, motor neurons

Question 5

What is the function of the corpus Callosum?

Answer 5

allows the two hemispheres to communicate

Question 6

What is the order of the parts of the brain?

Answer 6

Cerebral cortex, grey matter, white matter

Question 7

Frontal lobes are for

Answer 7

reasoning, planning, movement, emotion, problem solving

Question 8

parietal lobes are for

Answer 8

sense of touch

Question 9

Temporal lobes are for

Answer 9

speech, memory, hearing

Question 10

occipital lobes are for

Answer 10

sight, sometimes called the visual cortex

Question 11

Cerebellum is responsible for

Answer 11

skeletal muscle activity

Question 12

the brain stem controls

Answer 12

involuntary functions

Question 13

what are the parts of the brain stem?

Answer 13

medulla oblongata, pons, midbrain

Question 14

What is the limbic system?

Answer 14

thalamus, hypothalamus, hippocampus, and amygdala

Question 15

What protects the brain from foreign substances?

Answer 15

the blood brain barrier

Question 16

where is the reflex arc based out of?

Answer 16

the spinal cord

Question 17

motor nerves are divided into

Answer 17

sematic nerves and automictic nerves

Question 18

Somatic receptors are linked to

Answer 18

skin

Question 19

special senses include

Answer 19

balance, sight, hearing, taste, smell

Question 20

how many kinds of receptors are there?

Answer 20

thermoreceptors, mechanoreceptors, and pain receptors

Question 21

smell is due to

Answer 21

chemoreceptors

Question 22

what are the five tastes?

Answer 22

salty, sweet, sour, savory, bitter,

Question 23

Balance is in

Answer 23

the inner ear- fluid or crystals moving around

Question 24

in what order do sound waves hit the parts of the ear

Answer 24

ear canal, tympanic membrane, malleus, incus, stapes, cochlea

Question 25

where does light go in the eye?

Answer 25

cornea, pupils, lens, retina

Question 26

which part of the eye sends nerve impulses to to the brain?

Answer 26

the retina

Question 27

Endocrine system communicates

Answer 27

with chemical signals

Question 28

Hypothalamus

Answer 28

area that secretes hormones that manage the pituitary gland

Question 29

How many lobes does the pituitary gland have

Answer 29

two; anterior and posterior

Question 30

serotonin and melatonin affect

Answer 30

sleep and wake cycle

Question 31

What is type 1 diabetes?

Answer 31

pancreas does not produce enough insulin. Must be treated with insulin shots

Question 32

What is type 2 diabetes?

Answer 32

body doesn’t react correctly to insulin, can be treated with diet and exercise