Nervous

Question 1

What does the nervous system do?

Answer 1

Basic system of communication and regulation within the body.

Question 2

What are the 3 basic functions of the nervous system?

Answer 2

sensory functions (input). integrating functions (brain for processing). motor functions (output)

Question 3

Somatic nervous system?

Answer 3

the one you controle…

contains CNS and PNS

Question 4

What is included in the CNS?

Answer 4

brain and spinal cord

Question 5

what is included in the PNS?

Answer 5

motor and sensory nerves

Question 6

Autonomic nervous system houses the??

Answer 6

Sympathetic and parasympathetic nervous systems

- is automatic!!

Question 7

Sympathetic nervous system?

Answer 7

Fight or flight.

Question 8

Parasympathetic is?

Answer 8

Rest and restore.

Question 9

What is afferent?

Answer 9

Conduct never impulses TOWARD the CSN. Sensory!

Question 10

Efferent is?

Answer 10

Conduct never impulses AWAY from the CNS. Motor!

Question 11

What does the somatic nervous system do?

Answer 11

You decide. Controls skeletal muscle. Sensory function-afferent. Motor function-efferent.

Question 12

What does the autonomic nervous system do?

Answer 12

Controls smooth muscle, cardiac, and endocrine glands automatically.
You can not control it.
Also has sensory and motor branches.

Question 13

Neuroglia?

Answer 13

Or glial cells. Structurally and functionally support and protect the nervous system.
Not directly involved.

Question 14

Neurons?

Answer 14

Responsible for transmission of impulse.

Question 15

Who receives and who gives?

Answer 15

Dendrites.

Question 16

What causes the nerve impulse?

Answer 16

Depolarization and repolorization.

Question 17

Know how to draw re/depolarization

Answer 17

Woo!

Question 18

What is depolarization?

Answer 18

Sodium channel opens and sodium goes in cell. Making it positive.

Question 19

What is Repolorization ?

Answer 19

Potassium channel opens and K rushes out. Back to negative.

Question 20

Sodium potassium pump?

Answer 20

This is continually pumping 2 K in 3 Na out. Active transport.

Question 21

What is resting state?

Answer 21

When a neuron is not being stimulated.

More Na is outside and more K is inside.

Question 22

Resting membrane potential?

Answer 22

The electrical difference in charges across the membrane.

Question 23

Action potential?

Answer 23

The large change from negative to positive.

Question 24

What is threshold?

Answer 24

Strong enough stimulus to cause complete depolarization

Question 25

Cranial nerve 1

Answer 25

Olfactory. Sensory. Smell

Question 26

Cranial nerve 2

Answer 26

Optic. Sensory. Vision.

Question 27

Cranial nerve 3

Answer 27

Oculomotor. Motor. Eye movement, pupil size, focusing lens.

Question 28

Cranial nerve 5

Answer 28

Trigeminal. Both sensory/motor. Sensations from head and teeth, chewing.

Question 29

Cranial nerve 7.

Answer 29

Fecial. Both sensory/motor. Face and scalp movement, salivation, tears, taste.

Question 30

Cranial nerve 8

Answer 30

Vestibulocochlear. Seonsory. Balance, hearing.

Question 31

Cranial nerve 10

Answer 31

Vagus (wanderer). Both sensory/motor. Gestational track and respitory.

Question 32

Norepinephrine

Answer 32

Fight or flight.

Question 33

Another word for sympathetic is?

Answer 33

Adrenergic neurons

Question 34

Another word for parasympathetic is?

Answer 34

Cholinergic neurons.

Question 35

What is the primary neurotransmitter?

Answer 35

Acetylcholine