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anatomyyyy y2s1 > valves > Flashcards

valves Flashcards

1
Q

whats the name of the fibrous ring that surrounds AV canals?

A

fibrous skeleton of the heart

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2
Q

whats the origin of aorta and pulmonary trunk and give them support?

A

fibrous skeleton of the heart

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3
Q

what forms the connection between the fibrous skeleton rings?

A

right and left trigones

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4
Q

what forms the membranous part of the interventricular septum?

A

fibrous skeleton

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5
Q

whats the function of the skeleton of the heart?

A

1- keeps the AV and SL valves patent during contractions

2- provide attachments for myocardium and valves cusps

3- act as an insulator to make sure that the only pathway between atrium and ventricle is AV node

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6
Q

whats tricuspid orifice?

A

large oval aperture connecting the right atrium and right ventricle

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7
Q

whats special about it compared to mitral orifice ?

A

its wider fits 3 fingers ( cusps )

mitral only two

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8
Q

what surrounds the tricuspid orifice and provide attachment for the cusps?

A

fibrous skeleton of the heart

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9
Q

whats the level of the tricuspid valve?

A

4th intercostal space

its auscultated at left sternal border

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10
Q

how many cusps and what are their locations?

A

3 cusps :

anterior

posterior

septal cusp

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11
Q

what is the smooth and rough surface of tricuspid valve?

A

the atrial surface is smooth

the ventricular surface is rough

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12
Q

why is the ventricular surface is rough?

A

because it has attachments for papillary muscles and chordae tendineae

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13
Q

which part of the tricuspid valve is vascular?

A

the circumference of it is vascular but THE OTHER PART ARE AVASCULAR CUZ ITS FIBROUS TISSUE

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14
Q

whats definition of mitral orifice?

A

aperture connecting the left atrium with the left ventricle and its 2 fingers

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15
Q

whats the level mitral valve?

A

left 4th costal cartilage

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16
Q

how many cusps and whats their location?

A

anterior –> larger

posterior –> smaller

17
Q

what does the mitral cusps consist of?

A

double layer of endocardium with thin fibrous tissue

18
Q

whats its smooth part and rough part

A
  • smooth —–> atrial surface
  • ventricular —-> rough cuz it has attachment for chordae tendinae
19
Q

whats special about the chordae tendinae in mitral?

A

only 2 so fewer and stronger.

20
Q

what are the cusps of the aortic valve ?

A

3 cusps

1- Anterior –> Right coronary artery

2 posterior –> left coronary artery from the left posterior cusp

21
Q

what are cusps of the pulmonary valve? ?

A

3 cusps

1 posterior

2 anterior

22
Q

whats the name of thickening that forms the edge of a cusp?

A

lunule

23
Q

whats the name of the angulated apex and its central??

A

fibrous nodule

24
Q

whats a cusps sinus?

A

its like a bag كيس , when the blood backflows it will push the 3 sinus together to close the valve .and when the blood ejects from the ventricle it will push the sinuses away from each others to open them below

25
Q

where does the right coronary artery originate from?

A

anterior cusp

26
Q

where does the left coronary artery originate from?

A

posterior left cusp

27
Q

wheres point A when trying to form the border of the heart?

A

Left 2nd costal cartilage 1.5 inches from the median plane

28
Q

wheres point B when trying to form the border of the heart?

A

Right 3rd costal cartilage one inch from the median plane

29
Q

wheres point C when trying to form the border of the heart?

A

Right 6th costal cartilage 0.5 inches from the sternal margin

30
Q

wheres point D when trying to form the border of the heart?

A

apex : left 5th intercostal space 3.5 inches from the median plane

31
Q

what border does point A-B form

A

upper border

32
Q

what border does point B-C form

A

right border

33
Q

what does point A-D form

A

left border

34
Q

what point does point C-D form

A

inferior border

35
Q

whats the anatomical position of mitral valve and ascul location for it?

A

anatomical –> left 4th costal cartilage

ascul —-> apex of the heart

36
Q

whats the anatomical position of tricuspid valve and ascul location for it?

A

anatomical ——-> left 4th intercostal space

ascul —> inferior left border of the sternum

37
Q

whats the anatomical position of pulmonary valve and ascul location for it?

A

anatomical —-> left 3rd costal cartilage

ascul —> left 2nd intercostal space

38
Q

whats the anatomical position of aortic valve and ascul location for it?

A

anatomical ——–> right 3rd intercostal space

ascul –> right 2nd intercostal space

anatomyyyy y2s1 (12 decks)

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