REVIEW: Human Body Test (2020)

Which system has layers of smooth muscle tissue that contract to move solid and liquid nutrients and waste through the body?

• respiratory

• skeletal

• endocrine

• digestive

What carries oxygen throughout the body?

• white blood cells

• brain

• red blood cells

• nerves

Karen was reading a book about kidney system functions. Which statement did she most likely read that relates specifically to the kidney?

• A small cut on the skin takes about 120 seconds to clot.

• Each day about 5.5 liters of blood are circulated through an adult body.

• Each day about 1.25 liters of waste products are removed from the blood.

• Blood completely circulates through the body in about 20 seconds.

The esophagus, stomach, and small intestine are parts of which body system?

• nervous

• digestive

• respiratory

• muscular

The respiratory system cannot deliver oxygen to the cells of the body, nor can it remove carbon dioxide, without which body system?

• muscular

• digestive

• nervous

• circulatory

How does the skin help the body maintain homeostasis?

• The skin transports oxygen.

• The skin digests viruses.

• The skin sends messages to the brain.

• The skin stabilizes temperature.

To pump blood through the body, the heart must overcome the force of gravity. Which body position would require the least work from the heart?

• sitting

• standing

• kneeling

• lying down

What occurs if the body’s excretory system fails to work?

• Gas exchange is impaired.

• Blood oxygenation no longer occurs.

• Metabolic waste builds up in the blood.

• Nutrients are no longer transported to organs.

Which best describes how the human circulatory and respiratory systems interact?

• The heart removes waste built up in the lungs.

• Oxygen enters the bloodstream directly from the nose.

• Oxygen is transferred to the bloodstream as blood passes by the lungs.

• The heart pumps air into the blood through the lungs.

The hormone insulin is secreted by the pancreas. Which activity is most likely to trigger an increase in the levels of insulin circulating in the blood?

• driving

• eating

• jogging

• sleeping