Nervous System (Intro)

Question 1

What are the functions of the Peripheral and Central Nervous System?

Answer 1

1. Communications between regions of the body
2. Coordination of body functions
3. Orientation to environment
4. Assimilation

Question 2

What is the basic functional unit of the nervous system?

Answer 2

Neuron

Question 3

What provides support, nourishment, and protection to neurons?

Answer 3

Neuroglia and Glial cells

Question 4

What are the parts of the Central Nervous System?

Answer 4

1. Brain
2. Spinal cord

Question 5

What are the parts of the Peripheral Nervous System?

Answer 5

1. Spinal nerves
2. Somatic nerves
3. Dorsal root ganglia
4. Cranial nerves

Question 6

What conducts impulses to the CNS?

Answer 6

Afferent or Sensory Division

Question 7

What conducts impulses from the brain to different parts of the body?

Answer 7

Efferent or Motor Division

Question 8

What receives impulses from the brain and innervates the muscles?

Answer 8

Somatic Motor Nervous System

Question 9

What innervates glands, smooth muscles, cardiac muscles, and organs?
Subconscious / Automatic

Answer 9

Autonomic Nervous System

Question 10

Where can the Autonomic Nervous System be found?

Answer 10

The Midbrain,
Pons,
Medulla oblongata,
Spinal cord

Question 11

What receives neural messages and transmits them towards the cell body?

Answer 11

Dendrites

Question 12

What transmits neural messages away from the cell body?

Answer 12

Axon

Question 13

What is another word for the nerve body?

Answer 13

Soma

Question 14

What are the parts of the nerve body (soma)?

Answer 14

1. Neuroplasm
2. Nissl Bodies
3. Nucleus

Question 15

What is the cytoplas of the neuron called?

Answer 15

Neuroplasm

Question 16

What is the endoplasmic reticulum of the nerve cell?

Answer 16

Nissl Bodies

Question 17

What is the triangular region of the nerve cell body that is devoid of Nissl bodies?

Answer 17

Axon Hillock

Question 18

What are the parts of the nerve cell?

Answer 18

1. Cell body
2. Dendrites
3. Axon

Question 19

What has a nucleus and cytoplasm?

Answer 19

Cell body

Question 20

What is located between sensory and motor neurons and transmits impulses to the brain for processing?

Answer 20

Association or Interneurons

Question 21

What are the classifications of neurons based on synapse?

Answer 21

1. Multipolar Neurons
2. Bipolar Neurons
3. Unipolar or Pseudo Unipolar

Question 22

With single nerve cell and axons.
With -multiple dendrites-.

Answer 22

MULTIPOLAR NEURONS

Question 23

Nerve cell bodies -has two poles-.
Has axon on one pole and a dendrite on other pole.
for vision and smell.

Answer 23

BIPOPLAR NEURONS

Question 24

A single body with a single process attached to it.

Answer 24

UNIPOLAR NEURON OR PSEUDO UNIPOLAR

Question 25

What is the space between neurons called?

Answer 25

Synapse

Question 26

What are the chemicals in the synapse called?

Answer 26

Neurotransmitters

Question 27

-Cells that wrap around the axons- leaving small gaps called the Nodes of Ranvier.

Answer 27

SCHWANN cell or NEUROLEMMOCYTE

Question 28

These are lipoproteins which are the main component
of neurolemmocyte.

Answer 28

MYELIN

Question 29

What is a series of myelin called?

Answer 29

Myelin Sheath

Question 30

Myelinated nerve fibers are called what matter?

Answer 30

White Matter

Question 31

Unmyelinated nerve fibers are called what matter?

Answer 31

Gray Matter

Question 32

What allows nerve transmission from node to node, increasing the transmission speed of the neuron?

Answer 32

Nodes of Ranvier

Question 33

What is jumping transmission in the Nodes of Ranvier called?

Answer 33

Saltatory conduction