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Anatomy CVS Final > lec 8 part 2 > Flashcards

lec 8 part 2 Flashcards

1
Q

Conus Cordis

A

The mid portion of Bulbus cordis

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2
Q

Conus Cordis forms

A

outflow tracts of both ventricles

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3
Q

Bulbus cordis proximal third (dilated part) forms

A

the trabeculated part of the right ventricle

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4
Q

Truncus Arteriosus

A

The distal portion (upper part) of the Bulbus Cordis

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5
Q

Truncus Arteriosus forms

A

the roots and proximal portions of the Aorta and Pulmonary artery

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6
Q

Bulboventricular Sulcus

A

Junction between the ventricle and the Bulbus Cordis is externally indicated on the out side

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7
Q

Primary Interventricular Foramen

A

Junction between the ventricle and the Bulbus Cordis is internally

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8
Q

The cardiac tube divided into

A
  1. Bulbus Cordis
  2. Left ventricle
  3. Atrial region
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9
Q

Left ventricle is formed by

A

the embryonic ventricle

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10
Q

Right ventricle is formed by

A

proximal part of Bulbus Cordis

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11
Q

Bulbus Cordis

A

Truncus Arteriosus + Conus Cordis

Right ventricle

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12
Q

Right ventricle is formed by

A

proximal part of Bulbus Cordis

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13
Q

Truncus Arteriosus + Conus Cordis form

A

the proximal portions of the Aorta and Pulmonary artery + outflow tracts of both ventricles

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14
Q

The Conotruncal portion

A

Truncus Arteriosus + Conus Cordis

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15
Q

The Conotruncal portion of the heart tubeThe Conotruncal portion of the heart tube

A

on the right side of

the pericardial cavity, shifts gradually to a more medial position

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16
Q

Sinus Venosus receives venous blood

from the Rt. And Lt. Sinus Horns

A

In the middle of the 4 the week

17
Q

Each Right and Left Sinus horn receives blood from three veins

A

1- Vitelline vein, 2-Umblical vein, 3-Common Cardinal vein

18
Q

veins that obliterate during 5th week

A

Rt. Umbilical vein and the left Vitelline vein

19
Q

veins that obliterate during 10th week

A

Lt Common Cardinal vein

20
Q

remaining of Lt. Sinus Horn بتحول ل

A

Oblique vein of the Lt. Atrium

Coronary Sinus.

21
Q

Rt. Sinus Horn with its vein شو بصيرلهم

A

get enlarged.

22
Q

the smooth part of Rt. Atrium

A

The Sinus Venosus and the Rt. Sinus Horn

23
Q

Sup. and Inf. Vena Cava developed from

A

Right Cardinal veins

24
Q

the portal, superior mesenteric and splenic veins developed from

A

The right vitelline vein

25
Q

The left umbilical vein takes blood to

A

ductus venosus then to the inferior vena cava

26
Q

The Sinoatrial orifice between

A

the sinus venosus and Rt atrium

27
Q

The Sinoatrial orifice is surrounded

by

A

Valvular fold, the Right and Left Venous valves

28
Q

the Right and Left Venous valves fuse

A

dorsocranialy

29
Q

Septum Spurium developed from

A

fusion of the Right and Left Venous valves

30
Q

Atrial Septum developed from

A

fusion of the left venous valve and the Septum Spurium

31
Q

The superior portion of the Right Venous Valve

A

disappears

32
Q

the inferior portion of the Right Venous Valve

A

A-Valve of the inferior Vena Cava

B-Valve of the Coronary Sinus

33
Q

Formation of valves and septa in cavities of the heart in the embryo of

A

27th and 37 days (4th and 5th week)

34
Q

Valves and septa are formed from

A

1-Endocardial Cushions

2- Narrow septum of tissue

35
Q

Endocardial Cushions develop in the

A

Atrioventricular and Conotruncl regions

36
Q

Endocardial Cushions assist in formation of

A

Atrial and Ventricular septa
▪Atrioventricular canals and valves
▪Aortic and Pulmonary Channels

37
Q

Narrow septum of tissue develop between

A

expanding portions of the heart (in the atria or ventricles). Such a septum never completely divides the original lumen but
leaves a narrow communicating canal between the two sections. It is usually closed secondarily by tissue from
Endocardial cushions.

Anatomy CVS Final (5 decks)

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