Biology Test Review

Chemical messengers produced by endocrine glands are called

Agonists

Hormones

Neurotransmitters

Enzymes

The main function of the peripheral nervous system is to:

Relay messages between the brain’s right and left hemispheres

Transmit information from the central nervous system to other parts of the body

Speed up respiration and heart rate to increase alertness

Produce growth hormones

You are able to pull your hand quickly away from hot water before pain is felt because:

Movement of the hand is a reflex that involved intervention of the spinal cord only

Movement of the hand does not require intervention by the central nervous system

the brain reacts quickly to prevent severe injury

The autonomic division of the peripheral nervous system intervenes to speed contraction of the muscles in the hand

Researchers learn about the brain by studying:

Images of the brain created by computers

People with head injuries

The effects of electrical stimulation on the brain

All of the above

David experienced difficulty keeping his balance after receiving a blow to the back of his head. It is likely that he injured his:

Medulla

Hypothalamus

Thalamus

Cerebellum

Damage to the Broca’s area and Wernicke’s area of the brain can cause

Short-term memory loss

Difficulties in producing and understanding speech

Loss of hearing

All of the above

After a freak accident involving a falling piano, Dr. Williams informs you that you have sustained damage to your limbic system. Which of the following functions will be most affected?

Emotion

Intelligence

Vision

Perception

Multiple Sclerosis is a disease in which the immune system mistakenly destroys some of the myelin sheath wrapped around nerve cell fibers. Which nerve cell fibers are being attacked by this process?

Synapses

Dendrites

Axons

Mitochondria

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