FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 18: The Cardiovascular System: Blood Vessels

Show Answer

Share

---

All types

Filters

Study Flashcards

Question 61

Multiple Choice

Review LaterAdd Note

Review Later

The short-term controls of blood pressure, mediated by the nervous system and bloodborne chemicals, primarily operate via all but which of the following?

A) reflex arcs involving baroreceptors
B) altering blood volume
C) reflex arcs associated with vasomotor fibers
D) chemoreceptors

E) None of the above
F) A) and B)

Correct Answer

verified

Show Answer

Question 62

Multiple Choice

Review LaterAdd Note

Review Later

Which of the choices below reflects the balance (or imbalance) between the direction and amount of fluid that flows across the capillary walls?

A) hydrostatic and osmotic pressure
B) hydrostatic pressure only
C) blood volume and viscosity
D) plasma and formed element concentration

E) B) and D)
F) B) and C)

Correct Answer

verified

Show Answer

Question 63

Essay

Review LaterAdd Note

Match the following: A) External iliac artery B) Brachiocephalic trunk C) Internal carotid artery D) Celiac trunk E) Radial artery -Large unpaired branch of the abdominal aorta that supplies the liver, stomach, and spleen.

The ________ in the carotid sinuses and aortic arch detect increases in blood pressure.

Match the following: A) Internal iliac artery B) Aorta C) Renal artery D) Inferior mesenteric artery E) Common hepatic artery -Artery that does not anastomose.

Blood flow to the skin ________.

An obstruction in the superior vena cava would decrease the flow of blood from the head and neck to the heart.

The arteries that directly feed into the capillary beds are called ________.

The internal carotid arteries supply the ________ with blood.

Which of the following do not influence arterial pulse rate?

For each of the following situations, describe the anticipated effect on blood pressure and the physiological basis of the response: (1) a high-salt diet, (2) a blow on the head that damages (disables) the vasomotor center, (3) an attack by a mugger, and (4) a hypothalamic tumor resulting in excess ADH production.

Where in the body would you find low oxygen levels causing vasoconstriction and high levels causing vasodilation?

Which of the following is not True regarding fenestrated capillaries?

The baroreceptors in the carotid sinus and aortic arch are sensitive to which of the following?

At the battle of Shiloh in the American Civil War, Confederate General A. S. Johnston was killed when he was shot in the thigh. Witnesses reported that he bled to death almost before he realized that he was wounded. Which blood vessel was most likely to have been injured? Why is a tourniquet usually ineffective in stopping the bleeding from this wound?

Osmotic pressure is created by the presence in a fluid of small diffusible molecules that easily move through the capillary membrane.

Figure 18.2 Using Figure 18.2, match the following: -Superior mesenteric vein.

A precapillary sphincter is a cuff of smooth muscle that regulates the flow of blood into the capillaries.

The pulse pressure is ________.

Factors that aid venous return include all except ________.