Nervous System Notesheet Name: __________________ Date of Test: ______________

Nervous System

1. Two main divisionsa. Central Nervous System (CNS) – b. Peripheral Nervous System (PNS) – c.

2. Neurons - a. Sensory Neurons –

ex. Playing games in computer lab. b. Motor Neurons –

ex. c. Interneurons – connect neurons

3. Structure and Functions of Neuronsa. Cell Body –

b. Dendrites –

c. Axons –

d. Synapse –

e. Myelin Sheath –

f. Axon Terminals –

Axon Diagram

The Central Nervous System

1. The braina. b. Divided into three main parts:

2. The Cerebruma.

b. c. left hemisphere is for d. right hemisphere is for

3. Four lobes (parts) of the cerebruma. Frontal Lobe – b. Parietal Lobe – c. Occipital Lobe – d. Temporal –

4. The Cerebellum a. b. c.

5. The Brain Stema. b. five partsc. Medulla Oblongata – d. Pons – e. Midbrain – f. Thalamus – g. Hypothalamus –

- also controls pituitary gland which affects metabolism, sexual development, and emotions

The Peripheral Nervous System

Remember…What does PERIPHERAL Vision mean?

1. Broken into two partsa. Autonomic Nervous System –

- b. Somatic Nervous System –

-

2. Autonomic Nervous System

a. b. Sympathetic nervous system –

- “Fight or flight response” - Example… you are riding in a car and a deer jumps out in front of you. Think about how you feel. Your body prepares you to make a sudden reaction.

c. Parasympathetic nervous system –

- slows heartbeat, relaxes blood vessels, lowers blood pressure

Problems of the Nervous System

1. Headaches –

2. Head injuries a. concussion – b. contusion –

3. Spinal Injuries a. b.

4. Meningitis – a. symptoms include fever, headache, light and sound sensitivity, and neck stiffness. b.

How to care for/prevent these problems:

1. 2. 3. Nervous System Organizational Chart

Name: _____________________________________________________________ Class:________________________________________________Directions: The nervous system can be broken down in to smaller parts. This chart will help you organize the information you have learned throughout the unit.

Bell Ringer Answer Sheet

Name: _________________________________________________ Period: ______________________________

Directions: From time to time, you will have a bell ringer question to answer at the very beginning of class. Answer the bell ringers below. DON’T LOSE THIS SHEET! You will be turning it in to Mr. B for credit! If you miss one due to absence, ask a neighbor or go to my website!

Bell Ringer #1:

Bell Ringer #2:

Bell Ringer #3:

Bell Ringer #4:

Bell Ringer #5: