Which structure is highlighted in blue and indicated by the yellow arrow in this image? A) left atrium B) right ventricle C) right atrium D) left ventricle

Which of the following statements concerning capillaries is TRUE?   A) Capillaries are composed of a single layer of endothelial cells surrounded by a basement membrane B) Thoroughfare channels drain directly into venules C) Metarterioles branch directly off arterioles D) Both A & B All of the above

44. A 57-year-old woman with hypertension suddenly develops a right homonymous hemianopia with macular sparing. Occlusion of which of the following labeled arteries in the angiogram of the head is the most likely cause of these findings? Left Right E- D- A) P B) C) O D) ABC OE)

Blood flowing from the pectoral appendages to the heart would flow through which of the following vessels? **Can someone please answer my question within 15 minutes :)** Question 5 options:   A)  Posterior cardinal veins   B)  Subclavian veins   C)  Posterior vena cava   D)  Lateral abdominal veins   E)  Renal portal veins   F)  Hepatic portal veins   G)  Subclavian arteries

Valve regurgitation is yet another condition causing heart failure.  This condition is characterized by _________________. 1)the hardening of a valve, narrowing the opening that serves as a passage of blood.   2) a valve that everts back into the previous chamber, blockig blood from progressing into the ventricle.   3) a valve that does not close completely, and allows blood to leak back into the previous chamber.   4)a valve with an opening that is too narrow, not allowing for sufficient blood to travel to the next chamber.

120 Autoregulation of blood flow to an organ depends on reactive changes in which of the following? A) Blood viscosity B) Capillary recruitment C) Cardiac output D) Perfusion pressure E) Vascular resistance

(a) Name the type of blood vessel labelled (i) C. (ii) D. (b) In which direction does blood in vessel A travel? (c) Which of the four blood vessels contains the most oxygen? (d) What happens to the amount of oxygen in the blood as it passes through the body organs? (e) What is the chamber of the heart labelled X? ·

Which of these events occurs during (ventricular) systole? A)Only the left ventricle contracts. B)The ventricles fill with blood. C)Both ventricles contract. D)The atria fill with blood

Select the best answer or answers from the choices given: Peripheral resistance (a) is inversely proportional to the length of the vascular bed, (b) increases in anemia, (c) decreases in polycythemia, (d) is inversely related to the diameter of the arterioles.

Select the best answer or answers from the choices given: Blood flow in the capillaries is steady despite the rhythmic pumping of the heart because of the (a) elasticity of the large arteries, (b) small diameter of capillaries, (c) thin walls of the veins, (d) venous valves.