Homeoststasis Pg

Question 1

What is the connection between two neurones and what occus there

Answer 1

Its called a synapse. The nerve signal is transferred by chemicals that diffuse across a gap. These chemicals then set off a new electrtical signal in the next neurone

Question 2

What are reflexes and how do they work

Answer 2

They are immediate responses to stimuli that dont include the conscious part of the brain. This information from the receptor to effector is called a reflex arc.

Question 3

Paper

Describe the path of the reflex arc

Answer 3

Example bee stings finger, Then pain receptor feels the sting. Impulses travel to sensory neurones. Impules are passed along a relay neurone via a synapse. Impulses travel along a motor neurone via a synapse. When impulses reach muscle it contracts. And moves your hand away.

Question 4

Diagram of the brain and explain each section

Answer 4

The front part of the brain is the cerebral cortex that controls thinking,consciousness memory and launguage.
Medulla is the hump located near the spinal cord which controls unconscious things like heart rate and breathing.
Cerebellum is responsible for muscle coordination