stimuli and responses 1.1

Question 1

Stimuli are the changes in the environment that___________________

Answer 1

causes the body to respond

Question 2

The human nervous system consists of a network of nerve cells divided into two parts:

Answer 2

central nervous system and peripheral nervous system

Question 3

A sensory organ has ___________

Answer 3

receptors to detect stimuli

Question 4

When the receptors receive stimuli, it produces _________

Answer 4

nerve impulses

Question 5

what does the brain do when it receives nerve impulses?

Answer 5

it decides on actions that need to be taken

Question 6

where does the brain send the nerve impulses to once received?

Answer 6

the effectors

Question 7

what are effectors? give 2 examples.

Answer 7

effectors are parts of the body that respond. muscles and glands.

Question 8

how many types of responses are there? and what are they called?

Answer 8

2, voluntary action and involuntary action

Question 9

voluntary reaction requires_______

Answer 9

conscious effort

Question 10

involuntary actions_________

Answer 10

do not require conscious effort of occurs automatically