Multiple choice A&P

1. Ventricular systole is triggered by the

AV node

1. The extrinsic and intrinsic clotting pathways differ in how

Activation factor IX by IXa requires only one presence of ionized calcium, the activation of factor Ix By VIIa (in the extrinsic system) requires both calcium and tissue factor

1. Blood flow in the coronary arteries originates

Aorta

1. Baroreceptors that monitor blood pressure are located in the.

Aorta and carotid sinus

1. Baroreceptors are located in

Aorta, carotid sinus

1. The P wave of an ECG corresponds to

Atrial contraction atrial systole

1. When the cardiac cycle begins, the

Atrial systole begins, all four chambers are relaxed and ventricles are partially filled with blood

1. Jennifer has type A blood. What blood type(s) would cause agglutination or cross reaction with her blood?

B and AB

1. The vessels that exchange nutrients, respiratory gases, and waste are

Capillaries

1. Parasympathetic neurons that slow heart rate are contained in the

Cardioinhabitory center

1. The chemical characteristic that guides white blood cells toward damaged tissue is called

Chemotaxis

1. The vessels that supply blood to the heart are called the

Coronary arteries

1. Reduction in circulatory supply is called

Coronary ischemia

1. Intercalated discs consist of

Desmomes, gap junctions, fascia adherence

1. The process of white blood cells migrating out of capillaries to the surrounding tissues is called

Diapedesis

1. Relaxation of the lower chambers of the heart is called

Diastole

1. Which of the following is a characteristic associated with a typical artery that would NOT be seen in a vein?

Elastic membrane of artery

1. The formed elements with a role in blood clotting are

Erythrocytes, leukocytes, platelets

1. The artery that supplies blood to the neck, lower jaw, and face is the

External carotid artery

1. The first step in the common pathway of coagulation is

Extrinsic pathway

1. The final step in the coagulation phase is

Fibrinolysis

1. The size-selective exchange of materials across endothelial walls of capillaries is

Filtration

1. Which of the following is NOT a function of blood?

Functions of blood: Transport nutrients, gases, regulate PH, restrict fluid loss, defending toxins and body temperature

1. Cardiac output depends on

Heart rate and stroke volume

1. During light exercise, the increase in cardiac output is mostly due to

Increase in heart rate and small increase in stroke volume

Which of the following is NOT an effect of atrial natriuretic peptide?

Increased glomerular filtration and increased renal excretion of sodium and water

1. Which of the following will NOT increase heart rate?

Increased parasympathetic stimulation of the SA node

1. The vessel that drains blood from the brain is the

Jugular

1. Anemia can result from inadequate

Low blood count, not enough iron

1. An intercalated disc is a

Microscopic identifying feature for cardiac muscle, connects cardiac muscle cells together supports synchronized contractions

1. Which of the following is NOT descended from a myeloid stem cell?

Monocyte, neutrophil, eosinophil, platelettes, and red blood cells

1. Problems do NOT develop for Rh-negative mothers during their first pregnancy with an Rh-positive child because

Mother doesn't develop antibodies in time to affect the first child but developed after baby is born

1. The layer of the heart containing cardiac muscle is the

Myocardium

1. The thickest layer of the heart is the

Myocardium

1. The arteries of the pulmonary circuit carry

Oxygenated blood

1. The veins of the systemic circuit carry

Oxygenated blood

1. The fluid lubricating the opposing surfaces of membrane in the pericardial cavity is called

Pericardial fluid

1. The membrane covering the heart is the

Pericardium

1. The serous membrane covering the heart is the

Pericardium

1. The circuit that begins at the right ventricle and ends at the left atrium is the ________ circuit.

Pulmonary

1. The blood vessels that carry blood to and from the lungs comprise the

Pulmonary arteries/veins

1. Blood in the right ventricle will next pass through the

Pulmonary valve or pulmonary semilunar valve

1. The T wave of an ECG corresponds to

Repolarization of ventricles

1. The pacemaker of the heart is normally the

Sinoatrial node (SA node)

1. Which of the following will NOT decrease venous return?

Skeletal muscle contraction

1. The largest mass of lymphoid tissue in the body is the

Spleen

1. All the vessels of the systemic arterial system originate from the

Superior vena cava

1. The cerebral arterial circle is designed to

Supplies blood to the brain

1. Heart rate is stimulated by

Sympathetic nervous system

1. The circuit that travels through the left side of the heart is the ________ circuit

Systemic circuit .

1. The majority of the body's blood volume at one time is found within the

Systemic veins and venules

1. Erythroblastosis fetalis results from

The RHO antigens

1. The blood vessels that carry blood to and from the lungs comprise the

The pulmonary arteries

1. Local contraction of smooth muscle in response to damage is called

Vascular spasm

1. Increasing the diameter of a blood vessel by relaxing a muscle is called

Vasodilation

1. The right atrium receives blood from the

Vena cava

1. Blood circulates into the coronary arteries during

Ventricular diastole

1. The vessels that collect blood from capillary beds are called

Venules

1. Blood that has an unaltered composition is called

Whole blood

50. Pressure gradient adjustments can be generated by changing

diameter of blood vessels