Week 7 study quiz

What are the three main functions of the nervous system?

• Breathing, digestion, circulation

• Sensory information, movement coordination, processing information

• Reflexes, heartbeat, balance

• Movement, speech, posture

Which two main subdivisions make up the nervous system?

• Somatic and Autonomic

• Peripheral and Central

• Reflexive and Voluntary

• Brain and Spinal Cord

The autonomic nervous system controls:

• Voluntary motor movement

• Reflexes only

• Automatic functions like digestion and circulation

• Signals from the five senses

A reflex is best described as:

• A movement that requires brain processing

• An automatic response that bypasses the brain for safety

• A signal from the heart to the nervous system

• A voluntary contraction of muscles

What are the two main types of nerves?

• Dendrites and axons

• Motor and sensory

• Central and peripheral

• Autonomic and somatic

Which part of the neuron carries signals away from the cell body to muscles?

• Dendrite

• Synapse

• Axon

• Myelin

What is the function of myelin?

• Connects dendrites to each other

• Protects the neuron cell body

• Produces neurotransmitters

• Insulates nerves so signals travel efficiently

Which of the following is NOT one of the five senses?

• Sight

• Hearing

• Balance

• Taste

Which part of the eye controls how much light enters?

• Cornea

• Iris

• Retina

• Lens

What converts light into electrical signals in the retina?

• Optic nerve

• Rods and cones

• Iris

• Pupil