Heart and Circulatory System Quiz Part 1

Heart valves maintain unidirectional blood flow.

• True

• False

Valves in the heart help to minimize friction.

• True

• False

The blood circulatory system includes arteries and veins.

• True

• False

The layers of blood vessels consist entirely of smooth muscle tissue.

• True

• False

Continuous capillaries are found in skeletal muscles and lungs.

• True

• False

Fenestrated capillaries are typically located in the kidneys and small intestine.

• True

• False

Sinusoid capillaries are present in the bone marrow and liver.

• True

• False

The lymphatic system is connected to blood circulation.

• True

• False

The heart functions as a pump through the contraction of its muscles.

• True

• False