Make your own free website on Tripod.com

Biology 152

Chapter 23 Study Guide
Home
Chapter 24 Study Guide
Chapter 23 Study Guide
STUDY GUIDE
CHAPTER 20 STUDY GUIDE
CHAPTER 21 STUDY GUIDE
CHAPTER 22 STUDY GUIDE
About Me
Favorite Links
Contact Me

Enter subhead content here

 
1.  

What is the purpose  of the circulatory system? (23.1)



2.  

Which animal has a closed vascular system? (23.2)



3.  

The open circulatory system _____. (23.2)



4.  
 

Closed circulatory systems ____________. (23.2)



5.  

In a fish, the cardiovascular system has a ____ pump, while in a mammal, it has a ____ pump. (23.3)



6.  
 

The function of the pulmonary circuit is to ____________. (23.3)

 
 
 


7.  

What is unique about blood in pulmonary arteries compared with blood in other arteries? (23.4)



8.  

Which chamber(s) of the heart hold(s) oxygenated blood? (23.4)

left ventricle and left atrium
both left and right atria
left atrium only
right atrium and right ventricle
right atrium only


9.  

Where does blood go directly after it leaves the inferior vena cava? (23.4)

into the capillaries of the upper body
into the lungs
into the pulmonary artery
into the right atrium
into the most powerful side of the heart


10.  

Which one of the following correctly traces a drop of blood through the circulatory system? (23.4)

right ventricle, lungs, left atrium, left ventricle, body, right atrium
left ventricle, lungs, right atrium, right ventricle, body, left atrium
right ventricle, lungs, right atrium, left ventricle, body, left atrium
left ventricle, lungs, left atrium, right ventricle, body, right atrium
right ventricle, body, left atrium, left ventricle, lungs, right atrium


11.  

Emphysema damages the tissues of the lungs and increases peripheral resistance, forcing the heart to increase its contraction strength to compensate. In which of the following would changes first be detectable? (23.4)

aorta
right atrium
left atrium
right ventricle
left ventricle


12.  

The blood vessels with the thinnest walls are the _____. (23.5)

arterioles
venules
arteries
capillaries
veins


13.  

From outside to inside, the tissue layers of both arteries and veins are composed of _____. (23.5)

epithelium
smooth muscle, epithelium
epithelium, connective tissue, smooth muscle
connective tissue, smooth muscle, epithelium
smooth muscle, epithelium, connective tissue


14.  

_____ transport blood to capillaries, and _____ transport blood away from capillaries. (23.5)

Arteries ... arterioles
Veins ... arteries
Venules ... veins
Venules ... arteries
Arterioles ... venules


15.  

Heart valves function to _____. (23.6)

keep blood moving forward through the heart
mix blood thoroughly as it passes through the heart
control the amount of blood pumped by the heart
slow blood down as it passes through the heart
propel blood as it passes through the heart


16.  

Pressure is greatest in the ventricles when _____. (23.6)

oxygenated blood arrives at the right ventricle
oxygenated blood arrives at the left atrium
AV valves are open and semilunar valves are closed
the ventricles contract
the atria contract during early systole


17.  

What total information is necessary to calculate the cardiac output of the heart? (23.6)

the number of beats per minute
the volume of blood in the circulatory system
the amount of blood exiting the ventricle with each beat
heart rate
liters of blood pumped per minute


18.  

During systole of the ventricles, _____. (23.6)

the AV valves open and the semilunar valves close
the AV valves close and the semilunar valves open
both the AV and semilunar valves open
both the AV and semilunar valves close
the SA node opens and the AV node closes


19.  

When the heart beats, a "lub-dup" sound pattern is heard. What causes the "lub" sound? (23.6)

a defect in one or more of the heart valves
the closure of the semilunar valves during systole
the closure of the semilunar valves during diastole
the recoil of blood against the closed AV valves during diastole
the recoil of blood against the closed AV valves during systole


20.  

A recording of the electrical activity of a patient's heart shows that the atria are contracting regularly and normally, but every few beats the ventricles fail to contract. Which of the following is probably functioning improperly? (23.7)

AV node
semilunar valve
coronary artery
pacemaker
AV valve


21.  

The SA node generates an electrical impulse from its location in the ____________. (23.7)

left atrium, causing ventricular contraction
left ventricle wall, from which the impulse is carried to specialized muscle fibers that relay the signals to the tips of the ventricles
right atrium, causing atrial contraction
left ventricle, causing atrial contraction
none of these


22.  

What is atherosclerosis? (23.8)

severe pain of the heart muscle due to lack of oxygen
buildup of lipids along the inside of heart vessels
a condition promoted by overexercise
the result of balloon angioplasty
the noncontracting scar tissue that replaces heart muscle when heart vessels are blocked


23.  

What is the physiological cause of a heart attack? (23.8)

rupture of coronary arteries
severe angina
a blood clot moving through the heart
a blood clot lodging in a blood vessel supplying the heart
scar tissue in the heart muscle


24.  

Which of these would help you in your quest to develop cardiovascular disease? (23.8)

exercise
eat a diet low in cholesterol
eat a diet low in saturated fat
smoke
None of these increases the risk of cardiovascular disease.


25.  

_____ is the leading cause of death in the United States. (23.8)

Stroke
HIV infection
Homicide
Cancer
Heart attack


26.  

What is meant be the term "stroke"? (23.8)

the spread of cancer cells from the site of a tumor to other sites in the body
the death of brain tissue as a result of the blockage of blood flow to the head
an abnormally low number of red blood cells
an abnormally low amount of hemoglobin
the death of heart muscle as a result of the blockage of coronary arteries


27.  

Blood pressure is greatest in the _____. (23.9)

arteries
venae cavae
aorta
capillaries
venules


28.  

The contraction of _____ muscle will inhibit the flow of blood into an arteriole. (23.9)

skeletal muscle
striated muscle
cardiac muscle
branched muscle
smooth muscle


29.  

Your blood pressure is 120/70. The "120" indicates __________, and the "70" indicates __________. (23.10)

pressure in the left ventricle ... pressure in the right ventricle
arterial pressure ... venous pressure
arterial pressure during heart contraction ... arterial pressure during heart relaxation
pressure in the left ventricle ... pressure in the left atrium
pressure in the systemic circuit ... pressure in the pulmonary circuit


30.  

High blood pressure is also known as _____. (23.10)

anemia
hypertonic
hypotonic
hypertension
hypotension


31.  

Chronic high blood pressure contributes to _____. (23.10)

heart attack risk
stroke risk
aggravation of atherosclerosis
risk of kidney failure
all of these


32.  

What is responsible for the sounds that are used to measure blood pressure? (23.10)

the closing of the semilunar valves
the pain one experiences when the blood pressure cuff is inflated
uneven blood flow through an artery
leaky heart valves
the recoil of blood against closed AV valves


33.  

You can increase your risk of developing hypertension by _____. (23.10)

not smoking
maintaining proper weight
exercising
being born a female (and staying young)
choosing the wrong parents


34.  

The distribution of blood to capillaries is controlled by _____. (23.11)

aortic blood pressure
smooth muscle that regulates the flow of blood from arteries into arterioles and the precapillary sphincters that regulate the flow of blood from arterioles into capillaries
smooth muscle that regulates the flow of blood into venules
valves that are found at the junction of arterioles and capillaries
the velocity of blood flow through arterioles and the blood pressure within capillaries


35.  

Gasses diffuse across a capillary wall, moving between the _____ and _____. (23.12)

blood ... interstitial fluid
blood ... body tissue
oxygen ... carbon dioxide
blood ... water
body tissue ... interstitial fluid


36.  

At the arteriole end of a capillary, blood pressure _____ osmotic pressure so that there is a net flow of fluid _____ the capillary; at the venous end, blood pressure _____ osmotic pressure so that there is a net flow of fluid _____ the capillary. (23.12)

is less than ... out of ... exceeds ... into
exceeds ... out of ... is less than ... into
exceeds ... out of ... exceeds ... into
exceeds ... into ... is less than ... out of
Forget it; there is too much here for me to figure it out.


37.  

Which of these will NOT freely move out of a capillary? (23.12)

water
proteins
sugars
salts
oxygen


38.  

The major component of plasma is _____. (23.12)

water
erythrocytes
albumin
fibrinogen
leukocytes


39.  

Which of these transports oxygen? (23.14)

basophils
red blood cells
platelets
monocytes
neutrophils


40.  

At maturity, _____ lack nuclei. (23.14)

smooth muscle cells
skeletal muscle cells
eosinophils
stem cells
erythrocytes


41.  

Three or four of the following functions are carried out by leukocytes (white blood cells). Which one, if any, is NOT a leukocyte function? (23.15)

scavenging dead cells
synthesizing antibodies
engulfing bacteria
engulfing viruses
All of the above are carried out by leukocytes.


42.  

The primary sealant that plugs leaks in blood vessels is _____. (23.16)

fibrin
red blood cells
white blood cells
albumin
hemoglobin


43.  

Assume that you wish to form a blood clot and you have the following substances in a dish: fibrinogen and prothrombin. Minimally, which one of the following would you need to add in order to form a new clot? (23.16)

fibrin
thrombin
calcium ions
iron
calcium


44.  

A patient with which of the following conditions would probably NOT be helped by injections of purified stem cells? (23.17)

impaired resistance to infection
leukemia
AIDS
hypertension
sickle-cell disease

       


----

 

Enter supporting content here