What is a stimulus?
A stimulus is a change inside or outside the body that produces a response.
What are the three stages of the interaction function?
Detecting stimuli, preparing a response, and executing the response.
Which organs detect stimuli?
The sense organs
What do receptor cells do?
They react to stimuli and generate signals.
What carries signals from sense organs to the central nervous system?
The sensory nerves.
Which sense perceives vibrations in the air?
Hearing
What part of the ear sends signals to the brain?
The cochlea (through the auditory nerve).
Which nerve sends visual information to the brain?
The optic nerve.
Where are taste receptors located?
In the papillae on the tongue.
True or False: The spinal cord prepares complex responses.
False
What is a reflex? Give an example.
A quick, automatic, involuntary response, for example pulling your hand away from something hot.
What is the function of the peripheral nervous system?
It connects the body to the central nervous system through nerves.
What are the three main components of the locomotor system?
The skeleton, the muscles, and the joints.
What connects muscles to bones?
Tendons.
Do skeletal muscles work voluntarily or involuntarily?
Voluntarily
Why do muscles need a lot of energy?
Because they use energy to contract and produce movement.
