Nervous System Flashcards

1
Q

It is a system of cells, tissues, and organs that regulates the body’s responses by transmitting signals from one part to another.

A

Nervous System

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2
Q

serves as the main processing center for the entire nervous system

A

Central Nervous System (CNS)

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3
Q

CNS consist of two main components namely?

A

Brain and Spinal Cord

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4
Q

This is an organ located within the skull that functions as organizer and distributor of information for the body

A

Brain

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5
Q

Three main parts of brain

A

Cerebrum
Cerebellum
Brain Stem

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6
Q

large, upper part of the brain that controls activity and thought

A

Cerebrum

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7
Q

the part under the cerebrum that controls the posture, balance and coordination

A

Cerebellum

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8
Q

the part that connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate, and blood pressure

A

Brain Stem

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9
Q

This serves as a channel for signals between the brain and the rest of the body and controls simple musculoskeletal reflexes without input from the brain.

A

Spinal Cord

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10
Q

connects the central nervous system to the organs and limbs.

A

Peripheral Nervous System (PNS)

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11
Q

this system is associated with the voluntary control of the body movements and has two main parts.

A

Somatic Nervous System

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12
Q

2 parts of Somatic nervous system

A

Spinal Nerves and Cranial Nerves

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13
Q

the nerves that carry motor and and sensory signals between the spinal cord and the body.

A

Spinal Nerves

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14
Q

the nerve fibers that carry information into and out of the brain stem.

A

Cranial Nerves

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15
Q

this system is associated with the involuntary control of body and has two subdivisions.

A

Autonomic Nervous System

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16
Q

the two subdivisions of the Autonomic Nervous System

A

Sympathetic and Parasympathetic

17
Q

it is achieved when body is in a dynamic role or stress.

A

Sympathetic

18
Q

it maintains body functions and restores the body to normal or relaxed mode.

A

Parasympathetic

19
Q

the basic unit of the nervous system, has a cell body containing the nucleus, are cells with the special ability to carry signals or impulses.

A

Neurons

20
Q

What are the parts of Neuron?

A

Nucleus
Cell Body
Dendrites
Axon
Nodes of Ranvier
Schwann Cells
Myelin Sheath

21
Q

control center of the cell

A

Nucleus

22
Q

spherical part of the neuron that contain the nucleus.

A

Cell Body

23
Q

carry the impulses toward the cell body.

A

Dendrites

24
Q

carry the impulses away from the cell body.

A

Axon

25
Q

are gaps in the myelin sheath coating in the neutral axon

A

Nodes of Ranvier

26
Q

an insulating layer, that form around the nerves and allows electrical impulses to transmit quickly and efficiently along the nerve cells

A

Myelin Sheath

27
Q

support nerve regeneration

A

Schwann Cells

28
Q

is a combination of electrical charge and a chemical reaction. It is not a flow of electricity, but an electrochemical signal moving along a neuron.

A

Nerve Impulse

29
Q

What are the three types of Neurons?

A

Sensory Neuron
Interneuron
Motor Neuron