2017 Mod16

Question 1

Define the following terms:

A. Autonomic nervous system

Answer 1

The system of nerves that carries instructions from the CNS to the body’s smooth muscles, cardiac muscles, and glands

Question 2

B. Sensory nervous system

Answer 2

The system of nerves that carries information from the body’s receptors to the CNS

Question 3

C. Somatic motor nervous system

Answer 3

The system of nerves that carries instructions from the CNS to the skeletal muscles

Question 4

What are the two main types of cells in the human nervous system

Answer 4

Neurons and neuroglia

Question 5

Identifying the structures pointed out in this diagram of a neuron

Answer 5

A. Dendriles 
B. Nucleus
C. Cell body
D. Axon
E. Myelin sheath

Question 6

What do dendrite do?

Answer 6

They carry electrical signals toward the cell body

Question 7

What do axons do?

Answer 7

Carrie electrical signals away from the cell body

Question 8

What is a synapse?

Answer 8

It is the gap between neurons

Question 9

Explain how a signal crosses the axon of a neuron to the receiving cell

Answer 9

“Changes frequency”

Question 10

What is the function of a neuroglia

Answer 10

It support neurons and helps them communicate

Question 11

A nerve runs down the leg to and from the foot. is it part of this PNS or the CNS?

Answer 11

PNS

Question 12

What do you mean structures make up the CNS?

Answer 12

The brain and spinal cord

Question 13

What two things discussed in this module protect the brain?

Answer 13

The skull, cerebrospinal fluid

Question 14

What protects the spinal cord?

Answer 14

The back bone.

Question 15

What is the brain’s gray matter composed of?

Answer 15

Neurons

Question 16

What is the brain’s of white matter composed of?

Answer 16

Axons

Question 17

What is the function of my corpus callosum

Answer 17

It allows the two halfs of the brain to communicate

Question 18

What does the cerebellum primarily control?

Answer 18

Skeletal muscle movement

Question 19

What part of the brain deals mostly with higher-level thinking skills?

Answer 19

The cerebrum

Question 20

Do you the two sides of the brain do exactly the same things?

Answer 20

No

Question 21

What side of the PNS does the left side of the brain control

Answer 21

The right side of course.;)

Question 22

What is the blood brain barrier and why is it important?

Answer 22

It is a special filter to protect the brain

Question 23

What does the sympathetic division of the autonomic nervous system do?

Answer 23

It increases the heart rate and add more glucose to the blood

Question 24

What does the parasympathetic division of the autonomic nervous system do

Answer 24

It lowers the heart rate and makes the stomach churn

Question 25

What is the five basic tests that we can detect?

Answer 25

Sweet salty umami/savory sour bitter

Question 26

When we smell something, what are we actually detecting?

Answer 26

Chemicals in the air

Question 27

What is the function of the eye’s pupil?

Answer 27

To let light in and to protect the eye from over exposure

Question 28

What is the function of the eyes lens

Answer 28

To focus on different distances and objects

Question 29

What is the function of the eyes ciliary mussel?

Answer 29

To stretch the lens so that we can focus on different things

Question 30

What cells in the retina detect light

Answer 30

The cones and rods

Question 31

What causes an eye’s blind spot

Answer 31

The optic nerve

Question 32

Which part of the body has the most nerves related to touch: the fingers or the arm

Answer 32

The fingers

Question 33

What is the function of the ear drum

Answer 33

To hear sound

Question 34

What is the function of the cochlea

Answer 34

To convert sound waves into electrical signals