Question 1

The proteins needed to form blood clots are known as clotting factors.

Accepted Answer

A) True 
 B)False  True

Question 2

The force that blood exerts on artery walls is termed _____ pressure.

Accepted Answer

A)  venous 
B)  gravitational 
C)  blood 
D)  osmotic 
E)  pulmonary 
A)  venous 
B)  gravitational 
C)  blood 
D)  osmotic 
E)  pulmonary C

Question 3

When taking a person's blood pressure,after proper inflation of the cuff,the first pulse sound that is heard through the stethoscope indicates that blood is flowing through the artery past the cuff.The reading on the pressure gauge at this point represents

Accepted Answer

A)  that the heart is once again beating. 
B)  the force of contraction of the atria. 
C)  diastolic pressure. 
D)  venous pressure. 
E)  systolic pressure. 
A)  that the heart is once again beating. 
B)  the force of contraction of the atria. 
C)  diastolic pressure. 
D)  venous pressure. 
E)  systolic pressure. E

Question 4

Each day the human heart sends a volume of blood equal to about _____________ liters through the body.

Accepted Answer

A)  50,000 
B)  1000 
C)  7000 
D)  2000 
E)  5000 
A)  50,000 
B)  1000 
C)  7000 
D)  2000 
E)  5000

Question 5

While arteries are usually full of oxygenated blood,the one major exception is the pulmonary artery.

Accepted Answer

A) True 
 B)False

Question 6

Why would having a four-chambered heart,as in birds and mammals,optimize efficiency of oxygen delivery to tissues?

Accepted Answer

A)  Diffusion of oxygen from oxygenated blood into tissues would be increased. 
B)  Diffusion of oxygen from oxygenated blood into tissues would be decreased. 
C)  Less energy would be required to pump oxygen into the blood. 
D)  Less energy would be required to pump oxygen into the tissues. 
E)  Less energy would be required to pump oxygen into the lungs. 
A)  Diffusion of oxygen from oxygenated blood into tissues would be increased. 
B)  Diffusion of oxygen from oxygenated blood into tissues would be decreased. 
C)  Less energy would be required to pump oxygen into the blood. 
D)  Less energy would be required to pump oxygen into the tissues. 
E)  Less energy would be required to pump oxygen into the lungs.

Question 7

If blood pressure is too high,the brain _________ heart rate and causes blood vessels to _________.

Accepted Answer

A)  increases; dilate 
B)  increases; constrict 
C)  decreases; constrict 
D)  decreases; dilate 
E)  increases; rupture 
A)  increases; dilate 
B)  increases; constrict 
C)  decreases; constrict 
D)  decreases; dilate 
E)  increases; rupture

Question 8

Cardiac output may be increased by a

Accepted Answer

A)  greater-than-normal heart rate. 
B)  lower-than-normal stroke volume. 
C)  lower-than-normal stroke volume and heart rate. 
D)  greater-than-normal stroke volume. 
E)  greater-than-normal stroke volume and heart rate. 
A)  greater-than-normal heart rate. 
B)  lower-than-normal stroke volume. 
C)  lower-than-normal stroke volume and heart rate. 
D)  greater-than-normal stroke volume. 
E)  greater-than-normal stroke volume and heart rate.

Question 9

A heart murmur is caused by

Accepted Answer

A)  a greater than normal force of contraction of the right atrium. 
B)  a constriction of the pulmonary artery. 
C)  blockage of the aorta. 
D)  the heart valves not functioning properly. 
E)  a greater-than-normal force of contraction of the left atrium. 
A)  a greater than normal force of contraction of the right atrium. 
B)  a constriction of the pulmonary artery. 
C)  blockage of the aorta. 
D)  the heart valves not functioning properly. 
E)  a greater-than-normal force of contraction of the left atrium.

Question 10

Diastolic pressure reflects the

Accepted Answer

A)  contraction of the atria. 
B)  relaxation of the atria. 
C)  contraction of the ventricles. 
D)  relaxation of the ventricles. 
E)  heart rate. 
A)  contraction of the atria. 
B)  relaxation of the atria. 
C)  contraction of the ventricles. 
D)  relaxation of the ventricles. 
E)  heart rate.

Question 11

Scientists preparing preserved animals often inject colored latex into the circulatory system to identify different kinds of vessels.What color of latex is likely to be seen escaping from some blood vessels in preserved fetal pigs if pink latex is injected on the arterial side and blue on the venous side?

Accepted Answer

A)  blue latex 
B)  pink latex 
C)  both colors mixed together 
D)  spots of different colors in different parts of the pig 
E)  None of the answer choices are correct. 
A)  blue latex 
B)  pink latex 
C)  both colors mixed together 
D)  spots of different colors in different parts of the pig 
E)  None of the answer choices are correct.

Question 12

The abundant protein in blood,which is arguably the most critical for oxygen homeostasis in the body,is

Accepted Answer

A)  myoglobin. 
B)  actin. 
C)  fibrinogen. 
D)  hemoglobin. 
E)  myosin. 
A)  myoglobin. 
B)  actin. 
C)  fibrinogen. 
D)  hemoglobin. 
E)  myosin.

Question 13

The large vessels that carry blood to the heart are

Accepted Answer

A)  arteries. 
B)  veins. 
C)  capillaries. 
D)  lymph vessels. 
E)  sieve tubes. 
A)  arteries. 
B)  veins. 
C)  capillaries. 
D)  lymph vessels. 
E)  sieve tubes.

Question 14

In lab,you are asked to decide what stain to use to examine certain cells in a blood sample.These cells will be full of bacteria that cells are destroying,so you pick a stain specific for

Accepted Answer

A)  erythrocytes. 
B)  chondrocytes. 
C)  platelets. 
D)  leukocytes. 
E)  osteocytes. 
A)  erythrocytes. 
B)  chondrocytes. 
C)  platelets. 
D)  leukocytes. 
E)  osteocytes.

Question 15

The cellular components of blood that transport oxygen are

Accepted Answer

A)  leukocytes. 
B)  erythrocytes. 
C)  platelets. 
D)  chondrocytes. 
E)  osteocytes. 
A)  leukocytes. 
B)  erythrocytes. 
C)  platelets. 
D)  chondrocytes. 
E)  osteocytes.

Question 16

The lymphatic system collects fluid that has leaked from blood capillaries,removes bacteria,and returns the cleansed fluid to the blood.

Accepted Answer

A) True 
 B)False

Question 17

An irregular heartbeat in which the ventricles do not fill completely could be due to a malfunction in the atriventricular node.

Accepted Answer

A) True 
 B)False

Question 18

Which vessel might be blocked if the heart itself was not being well oxygenated?

Accepted Answer

A)  aorta 
B)  coronary artery 
C)  carotid artery 
D)  superior vena cava 
E)  inferior vena cava 
A)  aorta 
B)  coronary artery 
C)  carotid artery 
D)  superior vena cava 
E)  inferior vena cava

Question 19

Vertebrates with a four-chambered heart include

Accepted Answer

A)  fish. 
B)  nonavian reptiles. 
C)  birds. 
D)  amphibians. 
E)  annelids. 
A)  fish. 
B)  nonavian reptiles. 
C)  birds. 
D)  amphibians. 
E)  annelids.

Question 20

You are trying to explain a circulatory problem to a patient who is experiencing excessive blood pressure.The patient's brain is confused,acting as if pressure is lower than it is.This leads to the problem,you tell the patient,because if blood pressure if perceived to be too low,the brain __________ heart rate and causes blood vessels to _________.

Accepted Answer

A)  increases; dilate 
B)  decreases; dilate 
C)  increases; constrict 
D)  decreases; constrict 
E)  increases; rupture 
A)  increases; dilate 
B)  decreases; dilate 
C)  increases; constrict 
D)  decreases; constrict 
E)  increases; rupture

Exam 30: The Circulatory System

The proteins needed to form blood clots are known as clotting factors.

The force that blood exerts on artery walls is termed _____ pressure.

When taking a person's blood pressure,after proper inflation of the cuff,the first pulse sound that is heard through the stethoscope indicates that blood is flowing through the artery past the cuff.The reading on the pressure gauge at this point represents

Each day the human heart sends a volume of blood equal to about _____________ liters through the body.

While arteries are usually full of oxygenated blood,the one major exception is the pulmonary artery.

Why would having a four-chambered heart,as in birds and mammals,optimize efficiency of oxygen delivery to tissues?

If blood pressure is too high,the brain _________ heart rate and causes blood vessels to _________.

Cardiac output may be increased by a

A heart murmur is caused by

Diastolic pressure reflects the

The abundant protein in blood,which is arguably the most critical for oxygen homeostasis in the body,is

The large vessels that carry blood to the heart are

In lab,you are asked to decide what stain to use to examine certain cells in a blood sample.These cells will be full of bacteria that cells are destroying,so you pick a stain specific for

The cellular components of blood that transport oxygen are

The lymphatic system collects fluid that has leaked from blood capillaries,removes bacteria,and returns the cleansed fluid to the blood.

An irregular heartbeat in which the ventricles do not fill completely could be due to a malfunction in the atriventricular node.

Which vessel might be blocked if the heart itself was not being well oxygenated?

Vertebrates with a four-chambered heart include

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