01/31

Question 1

What is the path of blood?

Answer 1

1. Right side of heart
2. Lungs
3. Left side of heart
4. Body
5. Back to right side of heart

Question 2

What system allows for blood to go from the right side of the heart to the lungs and back to the left side of the heart?

Answer 2

Pulmonary

Question 3

What system allows for blood to go from the left side of the heart to the body and back to the right side of the heart?

Answer 3

Systemic

Question 4

Which system is need of greater pressure of pumping blood?

Answer 4

Systemic

Question 5

What happens to the blood when the right ventricle contracts?

Answer 5

It goes out the pulmonary trunk

Question 6

Pulmonary veins bring the blood to the

Answer 6

Left atrium

Question 7

What happens to the blood when the left ventricle contracts?

Answer 7

Blood goes out the aorta

Question 8

What are the valves found between the atria and the ventricles?

Answer 8

AV Valves

Question 9

What causes for the AV valves to open?

Answer 9

Pressure from the atrium, allowing blood to go into ventricle

Question 10

The AV valves close when

Answer 10

The ventricle blood goes up

Question 11

Which valves open due to pressure in the ventricles?

Answer 11

SL valves

Question 12

When the blood makes a swishing sound, it means there is

Answer 12

No full valve closure

Question 13

What is Valvular stenosis?

Answer 13

Valves stiffen and do not freely open

Question 14

What happens to the heart when valves stiffen and constrict opening?

Answer 14

It has to exert more force to get blood moving

Question 15

What happens when there is an Incompetent valve?

Answer 15

Blood backflows so the heart repumps the same blood over and over again

Question 16

What is the function of the cardiac skeleton?

Answer 16

• Provides structure, support, and insulation between atria and ventricles
• Forms rings that support and give structure to heart valves
• Provides framework for attachment of cardiac muscle

Question 17

How does the cardiac skeleton provide for attachment?

Answer 17

It anchors the cardiac muscle

Question 18

How does the cardiac skeleton provide insulation for cardiac muscle?

Answer 18

It prevents AP from traveling directly from atria to ventricle

Question 19

Which walls are thicker, atria or ventricles?

Answer 19

Ventricles

Question 20

Coronary Circulation is part of what circuit?

Answer 20

Systemic

Question 21

What is the role of the arteries in Coronary Circulation?

Answer 21

They deliver O2 rich blood to the heart

Question 22

Heart attack occurs when there is a blockage in

Answer 22

The coronary artery

Question 23

What is the role of the veins in Coronary Circulation?

Answer 23

Take CO2 + O2 poor blood and deliver it back to the right atrium via the coronary sinus

Question 24

What is significant about the Sarcoplasmic Reticulum in the cardiac muscle?

Answer 24

It lacks cisternae that contain Ca ions

Question 25

What are intercalated disks?

Answer 25

Areas between cardiac muscle cells where are there two types of cell junctions

Question 26

What are the types of cell junctions found in intercalated disks?

Answer 26

Desosomes and gap junctions

Question 27

What is the function of desosomes?

Answer 27

They help hold cardiac muscle cells together

Question 28

What is the function of gap junctions?

Answer 28

They allow for ions to move through gaps

Question 29

In order to contract, what does the heart need?

Answer 29

A signal

Question 30

What is significant about the cells in the heart compared to the skeletal system?

Answer 30

They can self-depolarize