The Nervous System

Question 0

What are the organs of the nervous system?

Answer 0

CENTRAL NERVOUS SYSTEM:
Brain and spinal cord.

PERIPHERAL NERVOUS SYSTEM:
Nerves that connect the CNS and the rest of the body. (Aka all nerves)

Question 1

What are the nervous systems jobs?

Answer 1

Communications and control.
Sending info nerve to nerve around the body.
Sense changes inside and outside and responds quickly.

Question 2

What’s with the brain?

Answer 2

The brain has three parts,
CEREBRUM- controls all voluntary movements, senses, thoughts. Consists of four lobes.
CEREBELLUM- coordinates movements, makes them smooth, and Balance.
MEDULLA- brain stem.
Connects to spinal cord and controls involuntary activities. VITAL FUNCTIONS! Heartbeats, sleeping, breathing, and blood pressure.

Question 3

What are the cerebrums parts?

Answer 3

1. Frontal: controls voluntary movement, speech, intelligence, and personality.
2. Parietal: controls sensory info and Kinesthetic sense.
3. Occipital: controls vision.
4. Temporal: controls smell, hearing, memory, thought, and judgement.

-The cerebrum has 2 hemispheres:
Right- controls art, music, intuition, and patterns.
Left-math, logic, language, and analysis.

Question 4

What are the spinal cords function?

Answer 4

Connects brain to the rest of your body.

Question 5

What are nerves impulses?

Answer 5

A combination of electrical chemical signals that are transmitted between nerve cells.

Question 6

What are reflexes?

Answer 6

• the WITHDRAWAL reflex is an involuntary response to and outside stimulus.
• sensory nerves receive stimuli.
• motor nerves transmit signals to muscles.