Exam 12: The Cardiovascular and Lymphatic Systems

Match each definition in the first column to the correct term in the second column. -The blood vessels that function to carry blood from the head to the heart.

Lucy,a new army recruit,stood in formation for long periods of time without moving an inch.She eventually became lightheaded and fainted due to a drop in blood pressure.What might have caused her fainting?

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

James misspoke at the banquet last night,became embarrassed,and his face looked red because the facial arteries and arteriole muscles relaxed.These arteries and arterioles were then said to be ________.

Which artery carries oxygenated blood to the head and the brain?

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

Match each definition in the first column to the correct term in the second column. -The blood vessels that are the site of gas exchange.

Which of the following characterizes blood flow through capillaries?

The ________ valves prevent blood from flowing back into the heart once it has left the ventricles.

A person may have a severe allergic reaction to something like a bee sting.If this happens to someone who is severely allergic it can result in anaphylactic shock in which the blood pressure plummets,and this can be fatal.The root cause of this is an inappropriate release of histamine in response to the sting.Histamine causes massive vasodilatation,so how does this affect blood pressure?

Swollen lymph nodes signal infection and result from increased numbers of ________.

What structures regulate blood flow into capillary beds?

The highest pressure in the artery during each heartbeat is known as the ________.

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

A (an)________ is a recording of the electrical activities of the heart.

Match each definition in the first column to the correct term in the second column. -This simple practice will reduce your chance of heart disease and stroke.

Match each definition in the first column to the correct term in the second column. -The major artery that delivers blood to the body.

Why would someone need to have an artificial pacemaker installed in his or her heart tissue?

An infection of the thin layer of tissue around the inner cavities of the heart itself would affect the ________.

A person has had an accident and is bleeding freely.Paramedics have arrived to stop the bleeding and are rushing the person to the hospital where a transfusion awaits.How is the body mobilizing extra blood from the blood reservoir to partially compensate until then?