All of the following are formed elements of the blood except:

Which of the following components of blood makes up the smallest percentage by volume?

An erythrocyte is more commonly known as

Blood plasma is mostly made of

The cell shown is responsible for releasing histamines, which dilate blood vessels during an allergic attack. It is categorized asa a(n) ____ and is called a(n) ____.

A single hemoglobin molecule can carry ____ oxygen molecules.

Because oxygen is nonpolar,

The process of hemostasis is completed by which type of cells?

Where does hematopoiesis occur?

The hormone that stimulates platelet formation is

Which of the following is the first step of hemostasis?

An individual with B+ blood would have what on their erythrocytes?

A person with Type A blood needs a blood transfusion. Which blood types are safe to provide to her?

What is the primary role of an antigen in the immune response?

The pericardium around the heart is responsible for

The real work of the heart contractions is done by which layer?

The human cardiovascular system has two loops. Which loop takes blood from the heart to the body tissues and back?

Which type of blood vessel contains blood at the highest pressure?

Blood passes from the legs into the ____ vena cava and then into the _____.

The major blood vessel that carries oxygenated blood away from the heart is the

An abnormal clot that forms within a blood vessel and dislodges to float freely through the blood is called a(n)?

Which of the following is the correct sequence for the intrinsic conduction system?

What sound is heard when the AV valves (atrioventricular valves) close?

Which phase of the cardiac cycle is characterized by the contraction of the ventricles to pump blood to the lungs and the rest of the body?

Which is the correct formula for calculating cardiac output?

What is the correct sequence of blood flow from an artery to a vein?

Three tissue layers are found in these structures

Also called the cardiac pacemaker

Externally covers the atrium

Caused by dropping blood oxygen levels

The relaxation portion of the cardiac cycle

Divides the deoxygenated and oxygenated blood.

Prevents the backflow of blood

What direction does the apex (tip) of the heart point?