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MBS218 > Anatomy And Functions Of The Heart > Flashcards

Anatomy And Functions Of The Heart Flashcards

1
Q

What is the composition of the pericardium?

A

It contains the double lining of the paricardial cavity It contains the visceral and parietal pericardium

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2
Q

What is the parietal pericardium?

A

It’s the outer layer and it forms the inner layer of the pericardial sac

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3
Q

What is the purpose of the pericardial sac?

A

It’s fibrous tissue that surrounds and stabilizes the heart

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4
Q

What is the visceral pericardium?

A

It’s the inner layer of the pericardium

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5
Q

What are the 3 types of blood vessels?

A

Arteries
Veins
Capillaries

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6
Q

What is the purpose of the capillaries?

A

They network the blood between veins and arteries

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7
Q

What is another name for the capillaries?

A

Exchange Vessels

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8
Q

What is another name for the capillaries?

A

Exchange Vessels

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9
Q

Why are capillaries called exchange vessels

A

They exchanged materials between blood and tissues and sometimes dissolved gasses,nutrients and waste

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10
Q

What is the anatomy of the heart?

A

It has 4 chambers and is supplied by coronary circulation,pumps O2 poor blood to lungs and O2 rich blood to rest of the body

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11
Q

What are the chambers of the heart?

A

Right Atrium
Right ventricle
Left Atrium
Left Ventricle

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12
Q

What is the purpose of the Left Atrium?

A

It collects blood from the syatemic circulation

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13
Q

What does the right ventricle do?

A

It pumps blood to Pulmonary circuit

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14
Q

What does the right ventricle do?

A

It pumps blood to Pulmonary circuit

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15
Q

What does the left Atrium do?

A

Collects blood from Pulmonary circuit

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16
Q

What does the Left ventricle do?

A

Pumps blood to system circuit

17
Q

What is the Pulmonary circuit?

A

It carries blood to and from the gas exchange surfaces of the lungs

18
Q

What is the systemic circuit?

A

It carries blood to and from the body

19
Q

What is the purpose of the capillaries?

A

They exchange blood and tissues materials(such as nutrients,waste and dissolved gasses)

20
Q

What is the anatomy of the heart?

A

Great veins and arteries at the base of the heart
It has an apex, which is a pointed tip
And around the heart is a pericardial sac
And the heart is between 2 pleural cavities in the mediastinum

21
Q

What is the surface anatomy of the heart?

A

Contains Atria and
Sulci

22
Q

How is the atria?

A

It has thin walls and has an atrial appendage (expendable auricle)

23
Q

What is the purpose of the coronary sulcus?

A

It divides the atria and ventricles

24
Q

What are the two types of sulci?

A

The Anterior and Posterior interventricular sulcus

25
Q

What is the sulci composed of?

A

Blood vessels of cardiac muscle

26
Q

What are the 3 layers if the heart wall?

A

Epicardium
Myocardial
Endocardium

27
Q

What is the Epicardium?

A

It’s the outer layer of the heart wall and contains visceral pericardium and covers the heart

28
Q

What is the composition of the myocardium?

A

It’s the middle layer of the heart wall and has concentric layers of cardiac muscle tissue
And has 2 divisions of ventricular myocardium and an atrial myocardium that wraps around great vessels

29
Q

What does endocardium contain?

A

Simple squamous epithelium

30
Q

What is the purpose of the cardiac muscle tissue?

A

To connect cardiac muscle cells
Propagation of action potentials
And convey force of contraction

31
Q

What is the interartiral septum?

A

It separates the atria

32
Q

What is the purpose of the atrioventricular valves?

A

Connect right Atrium to right ventricle

33
Q

What do the fibrous flaps of the valves form?

A

2 bicuspid and 3 tricuspid valves

34
Q

What’s the purpose of the cuspid valves?

A

To allow blood flow in one direction from the atria to the ventricle

MBS218 (11 decks)

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