B5.2 Human Nervous System Quiz

What is the main function of the human nervous system?

• To regulate blood glucose and water content

• To detect and respond to changes in the environment

• To carry nutrients to cells throughout the body

What do electrical signals in the nervous system travel along?

• Blood vessels

• Tendons

• Neurones

Which of the following best describes a receptor?

• A structure that generates a muscular response

• A cell that detects stimuli in the environment

• A hormone that circulates through the bloodstream

What is the role of a coordination centre in the nervous system?

• To store impulses for future responses

• To produce enzymes for digestion

• To process sensory information and send out signals

What is the function of a motor neurone?

• To carry information to the brain

• To respond to external temperature changes

• To transmit signals from the CNS to effectors

Which part of the nervous system includes the brain and spinal cord?

• Peripheral nervous system

• Central nervous system

• Sensory nervous system

What is the correct order of response in a simple reflex action?

• Stimulus → receptor → effector → CNS

• Receptor → stimulus → CNS → effector

• Stimulus → receptor → coordination centre → effector

Which of the following is true about sensory neurones?

• They carry signals from the brain to the muscles

• They detect stimuli in internal organs only

• They transmit impulses from receptors to the CNS

What kind of data trend is observed between age and reaction time in students up to age 18?

• Reaction time increases steadily with age

• Reaction time decreases as age increases

• Reaction time remains constant across all ages

What happens when effectors receive impulses from motor neurones?

• They detect changes in light levels

• They create a chemical imbalance

• They bring about a physical response