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Anatomy Summer > Physiology Of Heart > Flashcards

Physiology Of Heart Flashcards

1
Q

What’s the 4 different chambers of the heart?

A

Two superior atria

Two inferior ventricles

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2
Q

What does the interatrial septum do?

A

Separates the atria

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3
Q

Fossa ovalis

A

Thumb print

Remnant of foramen ovale of fetal heart

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4
Q

Interventricular septum

A

Separates ventricles

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5
Q

What are the receiving chambers?

A

Atria

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6
Q

Small thin-walled chambers; contribute little to propulsion of blood

A

Atria

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7
Q

Auricles

A

“Ears”

Appendages that increase atrial volume

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8
Q

Right atrium

A

Receives deoxygenated blood from the body

Anterior portion is smooth-walled

Posterior portion contains ridges formed by Pectinate muscles

Posterior and anterior regions are separated by crista terminalis

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9
Q

What three veins empty into the right atrium ?

A

Superior vena cava
Inferior vena cava
Coronary Sinus

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10
Q

Superior vena cava

A

Returns blood from body regions above the diaphragm

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11
Q

Inferior vena cava

A

Returns blood from the body region s below the diaphragm

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12
Q

Coronary sinus

A
  • Return blood from coronary veins
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13
Q

What part of the heart receives oxygenated blood from the lungs?

A

Left atrium

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14
Q

Where are pectinate muscles found?

A

Auricles

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15
Q

How many pulmonary veins return Blood from lungs?

A

4

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16
Q

Ventricles

A

The discharging Chambers

Make up most of the volume of the heart

thicker walls than atria

17
Q

What makes up most of the anterior surface?

A

Right ventricle

18
Q

Posteroinferior surface

A

Left ventricle

19
Q

Trabecular carneæ

A

Irregular ridges of muscle on ventricular walls

20
Q

Papillary Muscles

A

Project into ventricular cavity

21
Q

What anchors the chordae tendineae

A

Papillary muscle

22
Q

Where do the chordae tendineae attach to?

A

Heart valves

23
Q

What part of the heart actually pumps the heart?

A

Ventricles

24
Q

What pumps blood into the pulmonary trunk?

A

Right ventricle

25
Q

What pumpsblood into the aorta ?

A

Left ventricle

26
Q

Largest Atery in the body?

A

Aorta

27
Q

What is theimportance of the heart valves?

A

Ensure unidirectional blood flow though heart

28
Q

2 Major types of heart valves

A

Atrioventricular valves

Semilunar valve

29
Q

Av valves located

A

Located between atria and ventricles

30
Q

Semilunar valve location

A

Located between ventricles and major arteries

31
Q

2 types of Av value?

A

Tricuspid

Bicuspid

32
Q

Main function of the av valve

A

Prevent back flow into atria when ventricles contract

33
Q

Tricuspid valve

A

Made up of three cusps and lies between right atria and ventricle

34
Q

Mitral valve or bicuspid valve

A

Made up of 2 cusps and lies between left atria and ventricle

35
Q

Function of chordae tendeae

A

Hold valve flaps in closed position

Prevents flaps from everting back into atria

Anatomy Summer (8 decks)

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