Peripheral Nervous System

What happens to the brain in a sensory deprivation tank?

• It shuts down non-essential functions to conserve energy.

• It enhances the senses that are still receiving stimuli.

• It begins to hallucinate due to a lack of external information.

• It starts to process information more efficiently.

Which type of sensory receptor is responsible for detecting pain?

• Thermoreceptors

• Photoreceptors

• Nociceptors

• Mechanoreceptors

Why is pain considered a useful sensation?

• It indicates areas of the body that are functioning optimally.

• It signals to the brain to release endorphins.

• It alerts the body to potential or actual damage.

• It is a mechanism for the body to rest.

What is the first step in the process of detecting and responding to pain?

• The spinal cord sends signals to the affected area.

• The brain perceives the pain.

• Motor neurons respond to the pain.

• Sensory receptors detect a change in the environment.

What differentiates an innate reflex from a learned reflex?

• Learned reflexes are present at birth.

• Innate reflexes are automatic and do not require learning.

• Learned reflexes do not require brain processing.

• Innate reflexes are slower but more accurate.