Nervous System

Question 1

What is the function of the nervous system

Answer 1

Control the mental and physical activities of our body, monitor and respond, maintain homeostasis

Question 2

Describe how a nerve impulses travels through a neuron

Answer 2

1. Dendrite receives stimuli
2. sends signal through cell body to axon
3. axon sends an electrical wave where positive and negative charges switch in a wave-like motion
4. Myelin shealth protects this electrical wave/axon
5. at the axon terminal the electric pulse is converted into neurotransmitters that travel across the synapse

Question 3

What is the function of the cerebrum?

Answer 3

Contains memories, thoughts, emotions, interprets sensory information

Question 4

What is the function of the cerebellum?

Answer 4

Coordination and movement

Question 5

What is the function of the Medulla Oblongata?

Answer 5

Involuntary actions: breathing, heart rate
Brain stem

Question 6

What is the function of the dendrites?

Answer 6

Receive information from other neurons or the environment

Question 7

What is the function of the Schwann cells and Milan sheath?

Answer 7

To insulate the axon so it’s electricity is correctly conducted and controlled

Question 8

What is the function of the spinal cord?

Answer 8

Carries information to and from the brain; responsible for reflexes

Question 9

What structure allows the two hemispheres of your brain to communicate with each other?

Answer 9

Corpus callosum

Question 10

What structures make up the central nervous system?

Answer 10

Brain and spinal cord

Question 11

This two diseases or injuries that affect the nervous system and how they affect the system

Answer 11

Epilepsy- nerve cell activity in brain is Disturbed, causing seizures, (abnormal electrical activity)
Parkinson’s disease-loss of muscle control, shaking, caused by nerve cell damage