The liquid matrix that carries formed elements is mostly water with dissolved proteins, nutrients, gases, and wastes. Which blood component is it?

A formed element packed with hemoglobin carries most oxygen from the lungs to body tissues. What is it?

A nucleated formed element in blood defends the body by attacking microbes and abnormal cells. What is it?

Small cell fragments stick to a torn vessel wall to begin a plug during hemostasis. What are they?

During clotting, thrombin cuts a soluble plasma protein so it can make the mesh that stabilizes a clot. Which protein is cut?

A person with type A blood has which marker on the surface of the red cells?

A red-cell sample is Rh negative. What does that sample lack?

In an emergency using packed red cells, which donor type is least likely to trigger ABO or Rh reactions in any recipient?

A differential count shows the most common leukocyte, the rapid phagocyte that often rises in bacterial infections. Which cell is it?

Which plasma protein group includes antibodies that bind foreign antigens?

Blood from the superior and inferior venae cavae enters which chamber first?

Blood returning from the lungs enters which chamber before it passes through an atrioventricular valve?

Which chamber pumps blood into the vessel that leads to the lungs?

Which chamber has the thickest myocardium because it sends blood through the systemic circuit?

Blood moving from the right atrium to the next chamber passes through which valve?

Blood moving from the left atrium to the next chamber passes through which valve?

When blood has just left a ventricle, which valves prevent it from falling back into that ventricle?

A wall of muscle separates the right and left sides of the heart so oxygen-poor and oxygen-rich blood do not mix. What is the wall called?

Which layer of the heart wall does most of the contracting during each beat?

The heart sits inside a fibrous sac with serous membranes that reduce friction. What is that sac called?

A drop has just entered the right atrium from a vena cava. Where does it go next?

A drop is ejected from the right ventricle. Which great vessel receives it immediately?

After passing through the pulmonary trunk and arteries, where does the drop release carbon dioxide and pick up oxygen?

A drop has just left capillaries in the lungs and is heading back to the heart. Which vessels carry it?

A drop has filled the left ventricle and the outlet valve opens. Which vessel receives it next?

A drop in a systemic artery is moving toward a tissue bed. Which vessel type comes immediately before the capillaries?

A drop has crossed a body-tissue capillary and is returning toward the heart. Which vessel type comes next?

A drop of deoxygenated blood has just drained from the coronary sinus. Which chamber receives it?

Which vessel type has a one-cell-thick wall that lets gases and nutrients diffuse between blood and tissues?

At low pressure in the limbs, which vessels use internal valves and skeletal-muscle squeezing to help blood return?

Which major artery in the neck carries oxygenated blood toward the head and brain?

During a blood pressure reading, the top number records artery pressure while the ventricles contract. What is this value?

Stretch receptors in the carotid sinus and aortic arch detect a sudden rise in arterial pressure. What reflex response helps lower it?

On an ECG, which wave or complex marks ventricular depolarization just before ventricular systole?

A coronary artery is blocked long enough that heart muscle cells die. Which disorder has occurred?

Fatty plaque builds in an artery wall and narrows the lumen over time. Which disorder is this?

A patient's resting artery pressure stays above the healthy range over many visits. Which disorder is this?

A blood test shows too few erythrocytes or too little hemoglobin, causing fatigue and poor oxygen delivery. Which disorder fits?

A valve does not close cleanly, so blood leaks backward and creates an abnormal sound. Which condition or sign fits?

Electrical impulses fail to pass normally from atria to ventricles, slowing ventricular beats. Which disorder fits?