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