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Cardiovascular System
Chapter 21: Blood Vessels And Hemodynamics (Questions from the end of the chapter)
32
Biology
Undergraduate 2
05/16/2013

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Cards

Term

Baroreceptors and chemoreceptors are located in the aorta and carotid arteries

 

TRUE

or

FALSE

Definition
TRUE
Term

The most important method of capillary exchange is simple diffusion

 

TRUE 

or 

FALSE

Definition
TRUE
Term

Which of the following are not true? (1) Muscular arteries are also known as conducting arteries. (2) Capillaries play a key role in regulating resistance. (3) The flow of blood through true capillaries is controlled by precapillary sphincters. (4) The lumen of an artery is larger than in a comparable vein. (5) Elastic arteries help propel blood. (6) The tunica media of arteries is thicker than the tunica media of veins. 

 

A. 2,3, and 6

B. 1,2, and 4

C. 1,2,4, and 6

D. 3,4, and 5

E. 1,2,3, and 4

Definition
B. 1,2, and 4
Term

Which of the following are true concerning capillary exchange? (1) Large, lipid-insoluble molecules cross capillary walls by transcytosis. (2) The blood hydrostatic pressure promotes reabsorption of fluid into the capillaries. (3) If the pressures that promote filtration are great than the pressures that promote reabsorption, fluid will move out of a capillary and into interstitial spaces. (4) A negative net filtration pressure results in reabsorption of fluid from interstitial spaces into a capillary. (5) The difference in osmotic pressure across a capillary wall is due primarily to red blood cells. 

 

A. 1,3, and 4

B. 1,2,3,4, and 5

C. 1,2,3, and 4

D. 3 and 4

E. 2,4, and 5

Definition
A. 1,3, and 4
Term

Which of the following woud not increase vascular resistance?

 

1. vasodilation

2. polycythemia

3. obesity

4. dehydration

5. anemia

 

A. 1 and 2

B.  1,3, and 4

C. 1 and 5

D. 1,4, and 5

E. 1 only

Definition
C. 1 and 5
Term

Capillary exchange is enhanced by (1) the slow rate of flow through the capillaries, (2) a mall cross-sectional area, (3) the thinness of capillary walls, (4) the respiratory pump, (5) extensive branching, which increases the surface area. 

 

A. 1,2,3,4, and 5

B. 1,2,3, and 5

C. 1 and 3

D. 3 and 5

E. 1,3, and 5

Definition
E. 1,3, and 5
Term

Systemic vascular resistance depends on which of the following factors? (1) blood viscosity, (2) total blood vessel length, (3) size of the lumen, (4) type of blood vessel, (5) oxygen concentration of the blood.

 

A. 1,2, and 3

B. 2,3, and 4

C. 3,4, and 5

D. 3 and 5

E. 1,3, and 5 

Definition
A. 1,2, and 3
Term

Which of the following help regulate blood pressure and help control regional blood flow? (1) baroreceptor and chemoreceptor reflexes, (2) hormones, (3) autoregulation, (4) H+ concentration of blood, (5) oxygen concentration of the blood.

 

A. 1,2, and 4

B. 2,4, and 5

C. 3,4, and 5

D. 1,2,3,4, and 5

E. 3,4, and 5

Definition
D. 1,2,3,4, and 5
Term
Renal Artery
Definition
Supplies blood to the kidney
Term
Superior Mesenteric Vein
Definition
Drains blood from the small intestine, portions of the large intestine, stomach, and pancreas
Term
Brachial Artery
Definition
Main blood supply to arm; commonly used to measure blood pressure
Term
Common Iliac Arteries
Definition
Supply blood to the free lower limbs
Term
Pulmonary Veins
Definition
Drain oxygenated blood from the lungs and send it to the left atrium
Term
Celiac Trunk
Definition
Supplies blood to the stomach, liver, and pancreas
Term
Carotid Arteries
Definition
Supply blood to the brain
Term
Inferior Mesenteric Artery

Definition
Supplies blood to the large intestine
Term
Jugular Veins
Definition
Drain blood from the head
Term
Hepatic Portal Circulation
Definition
Detours venous blood from the gastrointestinal organs and spleen through the liver before it returns to the heart
Term
Azygos Veins
Definition
Drains most of the thorax and abdominal wall; can serve as a bypass for the inferior vena cava
Term
Great Saphenous Vein
Definition
A part of the venous circulation of the leg; a vessel used in heart bypass surgery
Term
Pulmonary Arteries
Definition
Carry deoxygenated blood from the right ventricle to the lungs
Term
Pulse
Definition
A traveling pressure was created by the alternate expansion and recoil of elastic arteries after each systole of the left ventricle
Term
Diastolic Blood Pressure
Definition
The lowest blood pressure in arteries during ventricular relaxation
Term
Bradycardia
Definition
A slow resting heart rate or pulse rate
Term
Shock
Definition
An inadequate cardiac output that results in a failure of the cardiovascular system to deliver enough oxygen and nutrients to meet the metabolic needs of body cells
Term
Tachycardia
Definition
A rapid resting heart rate or pulse rate
Term
Systolic Blood Pressure
Definition
The highest force with which blood pushes against arterial walls as a result of ventricular contraction
Term
Umbilical Vein
Definition

Returns oxygenated blood from the placenta to the fetal liver

 

and

 

Becomes the ligamentum teres at birth

Term
Foramen Ovale
Definition

An opening in the septum between the right and left atria

 

and 

 

Becomes the fossa ovalia after birth

Term
Ductus Venosus
Definition

Becomes the ligamentum

 

and 

 

Transports oxygenated blood into the inferior vena cava

Term
Umbilical Arteries
Definition

Become the medial umbilical ligaments at birth

 

and

 

Pass blood from the fetus to the placenta

Term
Ductus Arteriosus
Definition
Bypasses the nonfunctioning lungs; becomes the ligamentum arteriosum at birth
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