True or false Blood pressure is a product of cardiac output and resistance. Blood pressure is lowest in the vena cava The pulse is felt at the large veins Arterioles are the most important vessels in regulation blood pressure. Veins and lymph vessels have valves Only arteries have smooth muscles Veins always carry deoxygenated blood.

Which of the following statements is false concerning the movement of fluid between capillaries and interstitial space?   Group of answer choices The osmotic pressure of the interstitial fluid does not oppose the movement of fluid from the capillary. Blood hydrostatic pressure forces fluid from the capillary to the interstitial space. The blood hydrostatic pressure and the blood osmotic pressure are always equal in magnitude but opposite in direction. Blood osmotic pressure moves fluid from the interstitial space to the capillary. The osmotic pressure of the interstitial fluid is less than the blood osmotic pressure.

Poor quality capillaries can rupture and bleed small amounts into the tissue. On the surface it looks like several tiny red dots. This is called ___.     embolus     varicose veins     petechia     cicatrix

Use the word bank below to complete the following statements: Tissue capillary higher lower oxygen carbon dioxide waste nutrients On the arteriole side of a capillary bed, the capillary hydrostatic pressure is than the blood colloidal osmotic pressure. This causes a net movement of liquid into the This liquid contains a lot of gas and which move down a concentration gradient towards local cells that are continually consuming those resources. On the venule side of the capillary bed, the capillary hydrostatic pressure is than the blood colloidal osmotic pressure, resulting in a net movement of liquid into the . After passing over local tissues, the composition of the liquid has changed, and now contains a lot of gas and Only (write a number and a % sign) of fluid returns to the circulatory system. The remaining portion of fluid is collected by the lymphatic system.

note whether the statements below are consistent with an open or closed circulatory system. The circulating fluid flows in one direction (unidirectionally) through a circulatory loop. The circulating fluid is called hemolymph. Ostia are pores in the heart, important for circulatory function. The circulating fluid is called blood. The circulating fluid remains in vessels as it moves throughout the organism. Is the more efficient type of circulatory system.

The English physiologist William Harvey made all of the following circulatory discoveries except: the function of valves in the veins is to direct blood flow back to the heart both pulmonary and systemic blood pressure comes from pumping of the heart blood in the veins is under less pressure than is blood in the arteries arterial pressure is lowest during systole and greatest during diastole the function of the vertebrate heart is to pump blood continuously

Which of the following is true regarding the fatty epicardial tissue surrounding the coronary circulation?   it supplies the myocytes with fatty acids to fuel ATP synthesis it may lead to blocked coronary arteries which can cause angina pectoris or heart attack it is associated with diets high in saturated fats it cushions the coronary vessels during each heart beat

Why do interstitial fluids build up in the capillary beds of tissues? O the venous capillaries absorb more fluids than can be delivered by arterial capillaries O more fluid is usually released by arterial capillaries than is absorbed by venous capillaries O interstitial spaces lack dissolved proteins or other types of dissolved electrolytes O tissue cells within the capillary beds tend to expel fluids into nearby open spaces Next

What is the main function of the fibrous tissues of the blood vessels? Allows vessels to stretch and rebound with force and allows vasodilation Vasodilation and vasoconstriction Evening blood flow as heart beats and allows vasodilation Evening blood flow as heart beats and allows vessels to stretch and rebound with force None of these is correct

What causes the atrial filling of blood?   high pressure in the atria   low pressure in the ventricle   Low pressure in the atria