Exam 29: Blood Vessels

Both the ductus venosus and ductus arteriosus are adaptations of the fetal circulatory system designed to shunt blood away from the nonfunctioning lungs.

As the external iliac artery enters the thigh, its name changes to the _____ artery.

After birth the umbilical vessels remaining in the infant's body:

Match each term with its corresponding description. -Blood flow from the heart to the lungs and back to the heart

Match each artery to its correct anatomical location. -Kidney

Regarding fetal circulation, the small vessel connecting the pulmonary artery with the descending thoracic aorta is called the:

Describe the various types of capillaries and the differences in the structure of their walls. Explain why capillaries are the most important of all the blood vessels.

Pulmonary circulation is blood flow through the liver.

Describe the structure and function of a vein. Explain the term capacitance vessel. What is a venous sinus?

All arteries of the systemic circulation branch from the:

Which of these blood vessels contain precapillary sphincters?

Match each artery to its correct anatomical location. -Lower leg

The most important blood vessels in the cardiovascular system are the:

A portal system sends blood through two sets of capillaries.

In fetal circulation, the ductus arteriosus and foramen ovale:

The ductus arteriosus allows fetal blood to bypass the nonfunctioning fetal liver.

Match each artery to its correct anatomical location. -Upper arm

Explain why the capillaries are the most important blood vessels in the circulatory system. Explain how their structure assists them in accomplishing their functions.

Blood flow from the pulmonary arteries leads to the lungs.

Veins always carry deoxygenated blood.