Exam 2

Question 1

These vessels empty blood into the left atrium

Answer 1

Pulmonary veins

Question 2

The AV valve that is located on the same side of the heart as the origin of the aorta is the

Answer 2

Bicuspid valve

Question 3

The p wave of the ECG indicates

Answer 3

Atrial depolarization

Question 4

Contractions of the ventricles is referred to as ventricular

Answer 4

Systole

Question 5

When the left atrial pressure exceeds the leafy ventricular pressure

Answer 5

The bicuspid valve opens

Question 6

Pressure in the right ventricle must exceed pressure in the____before the right ventricle can eject food

Answer 6

Pulmonary trunk

Question 7

Which of the following is true?

Answer 7

Most ventricular filling occurs before the atria contract

Question 8

Which of the following statements about regarding intrinsic regulation of the heart is true?

Answer 8

If cardiac muscle fibers are slightly stretched, they have a stronger contraction force

Question 9

If the heart receives more sympathetic stimulation then parasympathetic stimulation the heart will

Answer 9

Increase the rate and force of contraction

Question 10

Which of the following will increase the heart rate?

Answer 10

An increase in the level of carbon dioxide in the blood.

Question 11

Lowered extra cellular potassium levels will lower the heart rate because

Answer 11

The resting membrane potential is hyper polarized

Question 12

Systematic blood vessels transport blood

Answer 12

From the left ventricle to the right atrium

Question 13

What is the order of the blood vessels that a red blood cell would pass through

Answer 13

Artery, arteriole, capillary, venule, vein

Question 14

The gas exchange of nutrients and gas between the blood and tissue cells is the primary function of

Answer 14

Capillaries

Question 15

Which of the following statements concerning the blood vessel walls is true ?

Answer 15

The tunica intimia

Question 16

Arteries can from strict or dilate as needed because of the smooth muscle found in the

Answer 16

Tunica media

Question 17

Which of the following would lead to relaxation of the pre capillary sphincter ?

Answer 17

Decrease in oxygen levels

Question 18

Veins

Answer 18

May contain valves and ate lined with endothelium

Question 19

The velocity of blood flow inside a blood vessel

Answer 19

Is faster

Question 20

Which of the following would in increase resistance to blood flow

Answer 20

Decrease in radius

Question 21

As viscosity of the blood increases

Answer 21

The pressure of the flow increases

Question 22

The greater the compliance

Answer 22

The more easily

Question 23

According to laplace’s law, as the diameter of the blood vessel increases the force applied to the wall the blood vessel

Answer 23

Increases

Question 24

Arteriosclerosis is

Answer 24

Thickening of the tunica intima

Question 25

In which of the following would you detect a weak pulse

Answer 25

Hemorrhagic shock

Question 26

When measuring blood pressure with a sphygmomanometer

Answer 26

Pressure in the brachial artery

Question 27

A force that causes the movement of fluid out of the capillary is

Answer 27

Blood pressure

Question 28

When blood pressure is greater than the blood colloid osmotic pressure there is

Answer 28

A net movement of fluid out of the capillary

Question 29

Which of the following happens when a person stands in one place for long periods of time

Answer 29

All of the above

Question 30

To the following statements regarding regulation of local blood flows true

Answer 30

Increased metabolic rate in a tissue increases capillary bloodflow into the tissue

Question 31

What to the following factors assist in the return of venous blood to the heart

Answer 31

Valves in the vein a, compression of that veins by muscular movement

Question 32

Which of the following would occur as a result of increased renin released by the kidneys

Answer 32

An increase in blood volume

Question 33

Which of the following chemical substances when released in the blood would cause blood pressure to decrease

Answer 33

ANH

Question 34

If a person develops high blood pressure one of the Compensatory mechanisms that comes into play is a fluid shift mechanism. This mechanism causes

Answer 34

Water to to shift from the capillaries into the interstitial space

Question 35

And incompetent pulmonary semilunar cable could result in less blood reaching the

Answer 35

Lungs