Exam 15: Blood

Risk factors for hypertension include age, African-American descent, and being female.

A varix is a section of an artery that has become abnormally wide.

Match each term with its corresponding definition or description. -Blood vessel in which the exchange of material between the blood and the body occurs

Explain the blood pressure gradient in the body. Why must the gradient be as it is?

Which layer of the blood vessel is composed of muscle and usually thicker in arteries than in veins?

The ductus arteriosus connects the pulmonary artery to the aorta.

Which of the following does not increase the risk of developing hypertension?

The thick tunica externa in arteries enables them to deal with higher blood pressure.

The ductus venosus shunts blood around the immature inferior vena cava to the heart.

Which structure in the fetus carries oxygen-rich blood from the mother to the baby?

Capillaries empty into arterioles.

Arteriosclerosis can lead to ischemia.

Which type of shock results from any type of heart failure?

Circulatory shock can be defined as the failure of the circulatory system to deliver an adequate amount of oxygen to the tissues.

Match each term with its corresponding definition or description. -Blood vessel that carries blood back to the heart

Which factor influences resistance to blood flow?

Explain the five mechanisms that help move blood in the veins back to the heart.

Describe pulmonary circulation. How is blood in the pulmonary arteries and veins different from blood in the systemic arteries and veins?

Blood that enters the liver from the hepatic portal vein has already been through one set of capillaries.

Because of the expansion of the lungs, deep breathing hinders the return of blood to the heart.