Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CARDIOVASCULAR SYSTEM > QUESTIONS > Flashcards

QUESTIONS Flashcards

1
Q

What is the main function of the CardioVascular System?

A

To supply blood flow around the body to allow it to survive.

The heart pumps blood through the body via blood vessels, supplying oxygen and nutritents to tissues and carries away waste products

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the layers of the heart called?

A

Pericardium - Outer fibrous Pericardium and the Inner Serous Pericardium
Myocardium
Epicardium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the function of the Pericardium?

A

It is the outer layer of the heart muscle. It is a twin layered sac - Outer fibrous Pericardium and the Inner Serous Pericardium. Its main function is to protect the heart and prevent the heart from overflowing.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the function of the Myocardium?

A

Its the middle layer of the heart. It contracts and releases involuntary and is responsible for keeping the heart pumping blood around the body.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the function of the Epicardium?

A

It is the inner thin layer of the heart. It acts as an additional layer of protection. Contains the coronary blood vessels which oxygenate the tissues of the heart with blood supply from the coronary arteries.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Describe the structure of the heart.

A
  • Four chambers - 2 Atria and 2 Ventricles.
  • Atrium walls are thinner than Ventricle walls.
  • Each side is separated by the septum.
  • Walls on the left side of the heart are much thicker than on the right side.
  • Heart has two different pumps: an oxygenated blood pump and a deoxygenated blood pump
  • Has three core muscle walls: Pericardium, Myocardium and Epicardium
  • Has its own blood supply through the coronary veins and coronary arteries.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Describe how blood flows around the heart and body.

A
  1. Deoxygenated blood from body travels through the superior vena cava (from the upper body) and inferior vena cave (from the lower body) into the right atrium.
  2. It then travels through the tricsupid valve into the right ventricle.
  3. It then travels through the pulmonary valve into the either pulmonary artery and then travels to each respective lung, where gaseous exchange occurs.
  4. Oxygenated blood then travels through the pulmonary viens into the left atrium.
  5. It travels down the bicuspid valve into the left ventricle.
  6. It then travels through the aortic valve into the aorta and is dispirited into arteries which carry the oxygenated blood to the bodies tissues.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are / the function of blood vessels?

A
  • There are three types of blood vessels - arteries, veins and capillaries.
  • They have three layers: Tunica Itima, Tunica Media and Tunica Externa.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the function of arteries?

A

Arteries are a type of blood vessel which carry oxygenated blood from the heart to the body. Expect for the pulmonary artery which takes deoxygenated blood from the right ventricle to the lungs.

Arteries have thicker walls to withstand the high pressure exerted from the heart.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the function of veins?

A

Veins are a type of blood vessel which carry deoxygenated blood from the body back to the heart. Expect for the pulmonary vein which takes oxygenated blood from the lungs to the heart.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the function of capillaries?

A
  • Capillaries are the smallest blood vessel.
  • They connect arteries and veins together.
  • Capillaries deliver oxygenated blood from the arteries to tissues and the returns deoxygenated blood to veins.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Name the four type of blood cells.

A
  1. Red blood cells
  2. White blood cells
  3. Platelets
  4. Plasma
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the function of red blood cells?

A

To deliver oxygen to the body’s tissues.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the function of white blood cells?

A
  • Also known as Leukocytes
  • Main function is in the immune system
  • Protects body in fighting infection
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the function of platelets?

A

The aid the blood in clotting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the function of plasma?

A
  • It is the liquid portion of blood
  • Helps maintain normal blood pressure
  • Acts as a transport medium for delivering nutrients to cells of various organs and waste products to the kidney, lungs and liver for excretion.
17
Q

What is the function of valves?

A
  • Valves ensure blood flows in one direction
  • They separate the atria and ventricles
  • They prevent back flow: The tricuspid/bicuspid valves prevent back flow into the atria when the ventricles contract and the Pulmonary and Aortic valves prevent back flow into the heart.
18
Q

What is Systole?

A
  • Systole is the period of contraction of the ventricles of the heart that occur between the first and second heart beat sounds (lub and dub) of the cardiac cycle.
  • Systole cause the ejection of blood into the aorta and pulmonary trunk.
19
Q

What is Diastole?

A

Diastole is the period of relaxation of the heart which allows the chambers of the heart to fill with blood.

20
Q

What is the function of the Superior Vena Cava?

A

Carries deoxygenated blood from the upper body (eg. head, neck, arms and chest) to the heart and into the right atrium.

21
Q

What is the function of Inferior Vena Cava?

A

Carries deoxygenated blood from the lower body (eg. feet, legs pelvis and and abdomen) to the heart and into the right atrium.

22
Q

What is the function of the pulmonary veins?

A

Carries freshly oxygenate blood from the lungs to the left atrium of the heart.

23
Q

What is the function of pulmonary arteries?

A

Carries deoxygenated blood from the heart to each lung.

CARDIOVASCULAR SYSTEM (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions