Blood flow through th e heart

Question 1

The conduction system of the heart is made up of
specialized _____.

Answer 1

cardiac muscle cells

Question 2

Path of Action potential through the heart

Answer 2

1. SA node (sinoatrial)
2. AV node (atrioventricular)
3. AV bundle
4. Right and Left Bundle branches
5. Purkinje fibers

Question 3

Two main heart sounds:
* First:
* Second:

Answer 3

• First: lubb (lower pitch)
• Second: dupp

Question 4

developed to listen the sounds of
the lungs and heart and is now used to listen other
sounds of the body as well

Answer 4

Stethoscope

Question 5

abnormal heart sounds due to faulty
valves

Answer 5

Murmurs

Question 6

narrowing of valve

Answer 6

Stenosis

Question 7

Refers to the pumping process that begins with the
onset of the cardiac muscle contraction and *ends with
the beginning of the next contraction. *

Answer 7

Cardiac cycle

Question 8

Cardiac Cycle involves the following:

Answer 8

• Atrial systole
• Ventricular systole
• Atrial diastole
• Ventricular diastole

Question 9

contraction of atria;
contraction of ventricles

Answer 9

Atrial systole;
Ventricular systole

Question 10

relaxation of atria;
relaxation of ventricles

Answer 10

Atrial diastole
Ventricular diastole

Question 11

Measurements to assess heart function:

Answer 11

• Cardiac output (CO)
• Stroke Volume (SV)
• Heart Rate (HR)

Question 12

volume of blood pumped per
ventricle per minute

Answer 12

Cardiac output (CO)

Question 13

volume of blood pumped per
ventricle each time the heart contracts.

Answer 13

Stroke Volume (SV)

Question 14

number of times the heart
contracts each minute.

Answer 14

Heart Rate (HR)

Question 15

Three Main Types of Blood
Vessels

Answer 15

• Arteries
• Veins
• Capillaries

Question 16

carry blood away from the heart.

Answer 16

Arteries

Question 17

carry blood toward the heart.

Answer 17

Veins

Question 18

site of exchange in blood and tissue
fluid.

Answer 18

Capillaries

Question 19

Except for capillaries, blood vessels consists of
three layers:

Answer 19

1. Tunica intima
2. Tunica Media
3. Tunica Adventitia

Question 20

system of blood vessels that
carries blood from the left ventricle of the heart to
the tissues of the body back to the right atrium.

Answer 20

Systemic Circulation

Question 21

system of blood vessels
that carries blood from the right ventricle of the
heart to the lungs and back to the left atrium of
the heart.

Answer 21

Pulmonary Circulation

Question 22

Arteries
* Three major types:

Answer 22

1. Elastic Arteries
2. Muscular Arteries
3. Arterioles

Question 23

receive
blood directly from the
heart. (Ex: Aorta and the
pulmonary artery)

Answer 23

Elastic Arteries

Question 24

distributes blood towards
the regions of the body.
(Ex: Femoral and brachial
arteries)

Answer 24

Muscular Arteries

Question 25

deliver blood
to the capillaries.

Answer 25

Arterioles

Question 26

All arteries of the systemic circulation branch directly
or indirectly from the

Answer 26

Aorta

Question 27

The ____ is the part of the aorta pass
passes superiorly from the left ventricle.

Answer 27

ascending aorta

Question 28

The _______ arise from the base of the ascending aorta and supply blood towards the heart

Answer 28

right and left coronary arteries

Question 29

is wherein three major arteries such
as, brachiocephalic, left common carotid, and left
subclavian arteries originate.

Answer 29

aortic arch

Question 30

All these arteries than originate in the aortic arch carry blood to the head and upper limbs

Answer 30

brachiocephalic, left common carotid, and left
subclavian arteries

Question 31

Head and Neck

Branches from the aortic arch and supplies the
head and arm

Answer 31

Brachiocephalic
(only at the right side of the
body)

Question 32

Branches from the right common carotid artery and
supplies blood to the right upper limb.

Answer 32

Right Subclavian

Question 33

Originates from the left common carotid artery and
supplies blood to the right upper limb

Answer 33

Left Subclavian

Question 34

Branches from the brachiocephalic artery and
supplies blood to the right side of the head and
neck

Answer 34

Right Common Carotid