The body's chemical messenger system that uses hormones.

• Endocrine System

• Sensation

• Sympathetic Nervous System

• Waking Consciousness

A neurotransmitter linked to mood, appetite, and sleep.

• Endocrine System

• Serotonin

• Pineal Gland

• Circadian Rhythm

The brain and the spinal cord.

• Central Nervous System

• Cerebellum

• Endocrine System

• Sympathetic Nervous System

The part of the brain that coordinates voluntary movements and balance.

• Pineal Gland

• Cerebellum

• Endocrine System

• Sensation

The state where a person is fully alert and aware of their thoughts and environment.

• Waking Consciousness

• Perception

• Circadian Rhythm

• Serotonin

The ability to detect a stimulus, like light or sound.

• Sensation

• Perception

• Endocrine System

• Pineal Gland

The gland that produces melatonin and regulates the sleep-wake cycle.

• Pineal Gland

• Serotonin

• Central Nervous System

• Sympathetic Nervous System

The nervous system responsible for the 'fight-or-flight' response.

• Sympathetic Nervous System

• Endocrine System

• Central Nervous System

• Circadian Rhythm

Which of the following is a primary function of the endocrine system?

• Sending rapid electrical signals throughout the body.

• Controlling voluntary muscle movements.

• Releasing hormones to regulate long-term processes like growth and metabolism.

• Processing sensory information from the environment.

Which part of the peripheral nervous system controls involuntary actions like heart rate and digestion?

• Somatic Nervous System

• Central Nervous System

• Autonomic Nervous System

• Sensory Nervous System