Exam 15: The Cardiovascular and Lymphatic Systems

Jorge has developed prostate cancer, so he undergoes an operation to remove the malignancy. What other structures will the cancer specialists look at to check for metastasis?

In a surgery of a few hours, the skeletal muscles are normally immobilized. Using the knowledge of this chapter, which of the following conditions would most likely result normally if countermeasures were not taken?

The left side of the heart and the arteries and veins in the body tissues make up the ________ circuit.

Breathing helps move blood from lower parts of the body toward the heart by which of the following mechanisms?

The lowest blood pressure that occurs when the ventricles are relaxing is known as ________.

When these valves open, blood goes from the atria to the ventricles.

The smallest arteries, called ________, are barely visible to the unaided eye.

What is the function of the veins, and how do these vessels compare with the arteries?

Paul, physically inactive and obese, suddenly dropped to the ground. His friends called 911, and the emergency medical technicians arrived. An emergency medical technician (EMT) quickly began to perform an EKG on Paul and saw many rapid, irregular waves where individual QRS waves should have been. Based on the information in the text, what is your diagnosis, and what is your suggested treatment? What do you think a physician will recommend to Paul should he survive?

These vessels take the blood back most directly to the heart.

Explain the mechanics of muscle contraction during a heartbeat, including the stimulus for the contraction.

An aneurysm is a weakening of the walls of a blood vessel. Which of the following blood vessels would be most likely to break open if an aneurysm is present?

A child is born with a hole in his heart between the left and right ventricles. This condition must be immediately corrected with surgery because the hole ________.

Swollen lymph nodes signal infection and result from increased numbers of ________ that build up in the lymph nodes.

In an EKG, what does the QRS wave indicate?

Cardiac muscle cells connect to each other at special junctions called ________ disks.

Because the sinoatrial node sends out impulses that initiate each heartbeat, it is often referred to as the ________ of the heart.

The tempo of the heartbeat is set by a cluster of specialized cardiac muscle cells called the ________.

Which of these is the portion of the heartbeat that involves contraction of the heart?

Explain the structure and functions of the arteries.