Unit Test Answers

Which part of the autonomic system is most likely to be dominant while someone is napping after lunch?

How does the cardiovascular system help the body maintain homeostasis?

How does the respiratory system help build social relationships?

How does the structure of the alveoli allow for its function of gas exchange?

A student makes the analogy that the cardiovascular system is like a highway. Why is this a good analogy?

Neurons and neuroglia work together to form nervous tissue, which is part of the nervous system. Which describes neurons and neuroglia?

Lewis is exercising and his muscles need oxygen. Which best describes how systems interact to bring his body into homeostasis?

Which is the temporary storage tank for urine?

Which injury would likely cause the body to permanently lose the ability to perform simple reflexes?

The picture represents a protein in the stomach being broken down into individual amino acids.

This picture represents an area of a blood vessel that has been weakened. What does this picture best represent?

The lungs, nose, and trachea are organs of the respiratory system. Which best describes these organs?

PeristalsisSalivationDigestionSecretion

Charles is an engineer who is evaluating a prototype of an artificial heart. The prototype beats in a synchronized fashion, is hollow, and has tubes attached to it. It can be powered by electrical signals from the brain when it is interfaced with the appropriate nerves. What important feature should Charles notice the prototype is missing?

High blood pressure occurs when there is too much blood flowing through the blood vessels at one time. By changing the amount of water in the blood, blood pressure can change. The excretory system can help to lower blood pressure.Which would most likely occur in the kidney?

Asthma is a respiratory disorder that can cause the airways to temporarily constrict, or get narrower. Which function of the respiratory system is most affected by the narrowing of the airways?

Homeostasis is the ability of the body to maintain internal balance despite changing external conditions. How does the respiratory system help maintain homeostasis?

Once the body has begun shivering, what happens to make it stop shivering?

Which structures are parts of the central nervous system? Select all that apply.the brainthe heartthe spinal cordthe sensory neuronsthe bonesthe muscles

What do the rib muscles and diaphragm have in common?

Which describes how blood can be protective in nature?

The diagram shows a nerve cell.

When the body is cold, an interaction of systems allows the body to warm itself. Which of these help the body warm itself when it is cold? Check all that apply.shiveringsweatinghair on body lying flatgoosebumps forminghair on body standing up

The hairs on Xander’s arms just started lying flat against his skin. Which is most likely his internal body temperature?