🧠Nervous System & Special Senses – Beginner Level

What is the main function of the nervous system?

• A. Pump blood through the body

• B. Break down food

• C. Transmit signals between body and brain

• D. Support bones and muscles

Which of the following is part of the central nervous system?

• A. Spinal cord

• B. Heart

• C. Nerves in fingers

• D. Stomach

Which type of neuron sends messages from the body to the brain?

• A. Motor neuron

• B. Sensory neuron

• C. Interneuron

• D. Reflex neuron

What part of the brain controls balance and coordination?

• A. Cerebrum

• B. Brain stem

• C. Cerebellum

• D. Thalamus

What’s the gap between two neurons called?

• A. Synapse

• B. Axon

• C. Dendrite

• D. Vesicle

The protective covering around some neurons is called the:

• A. Cortex

• B. Myelin sheath

• C. Synaptic cleft

• D. Neuroglia

Which part of the eye controls how much light enters?

• A. Retina

• B. Lens

• C. Cornea

• D. Iris

Which of these is a receptor for sound?

• A. Olfactory cells

• B. Cochlea

• C. Taste buds

• D. Retina

What part of your body allows you to smell things?

• A. Gustatory cells

• B. Rods and cones

• C. Olfactory receptors

• D. Eustachian tube

What is the order of a basic reflex arc?

• A. Brain → Receptor → Muscle

• B. Sensory neuron → Brain → Motor neuron

• C. Receptor → Sensory neuron → Interneuron → Motor neuron → Effector

• D. Stimulus → Brain → Response