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CVS ANATOMY > Development of veins > Flashcards

Development of veins Flashcards

1
Q

ولقد كنت في حلاوة طلبي العلم ألقى من الشدائد ما هو عندي أحلى من العسل لأجل ما أطلب وأرجو.

During the 5th week of development of the embryo enumerate the veins appear ?

A

1- Vitelline for the gut
2-umbilical connecting fetus to placenta
3-cardinal mean venous drainage of body

three end in sinus venosus

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2
Q

what does each vein drain ?
1-Vitlline
2-umbilical
3-cardina

A

1-vitlline : the gut and yolk sac retrun with poorly oxygeanted blood
2-umbilical : get the oxygenated blood from the cohrionic villi from the placenta
3-cardnal : drain the body wall return with poorly oxygenated blood

three drains into sinus venousu

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3
Q

وتارة يوقظني لقيام الليل ولذة مناجاتة، وتارة يحرمني ذلك مع سلامة بدني. ولولا بشارة العلم بأن هذانوع تهذيب وتأديب لخرجت إما إلى العجب عند العمل، وإما إلى اليأس عند البطالة.
Course of vitlline vein ?

A

pass through septum transversum to end in sinus venosus

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4
Q

كنت زمان الصبا آخذ معي أرغفة يابسة فأخرج في طلب الحديث، وأقعد على نهر عيسى فلا أقدر على أكلها إلا عند الماء. فكلما أكلت لقمة شربت عليها، وعين همتي لا ترى إلا لذة تحصيل العلم.

What happenes to vitlline vein caudal to septum transversum ?>

A

the two branches of vitltine anastomose together by 3channels 2 ant and one post to the future forming duodenum and formin 8 shape
then the 8 disappear leaving the Portal vein and its left and right tributaries ?
Spleinc vein and superior mesenteric vein draining the gut

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5
Q

فأثمر ذلك عندي أني عرفت بكثرة سماعي لحديث الرسول ﷺ وأحواله وآدابه، وأحوال أصحابه وتابعيهم، فصرت في معرفة طريقه كابن أجود.

Show portal vein formation ?

A

caudally to septum transversum ,
the two branches of vitltine anastomose together by 3channels 2 ant and one post to the future forming duodenum and formin 8 shape
then the 8 disappear leaving the Portal vein and its left and right tributaries ?
Spleinc vein and superior mesenteric vein draining the gut

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6
Q

وأثمر ذلك عندي من المعاملة ما لا يدري بالعلم، حتى أنني أذكر في زمان الصبوة ووقت الغلمة والعزبة قدرتي على أشياء كانت النفس تتوق إليها توقان العطشان إلى الماء الزلال، ولم يمنعني عنها إلا ما أثمر عندي العلم من خوف الله عز وجل. ولولا خطايا لا يخلو منها البشر، لقد كنت أخاف على نفسي من العجب.

show formation of splenic vein?
show formation of Suprior Mesenteric vein ?

A

the two branches of vitltine anastomose together by 3channels 2 ant and one post to the future forming duodenum and formin 8 shape
then the 8 disappear leaving the Portal vein and its left and right tributaries ?
Spleinc vein and superior mesenteric vein draining the gut

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7
Q

What happens to vitlline vein inside septum transversm?

A

They are interrupted by the growing hepatic cords forming hepatic siusoids

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8
Q

غير أنه عز وجل صانني، وعلمني، وأطلعني من أسرار العلم على معرفة، وإيثار الخلوة به، حتى إنه لو حضر معي معروف وبشر لرأيتهما زحمة.

Show formation of sinusoids

A

vitlline vein inside septum transversm

They are interrupted by the growing hepatic cords forming hepatic siusoids

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9
Q

What happens to the vitlline veins between the septum transversum and sinus venosus?

A

they from right and left hepatic veins forming the common hepatic vein
forms the hepatic segment of IVC which drains into RA

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10
Q

ثم عاد فغمسني في التقصير والتفريط حتى رأيت أقل الناس خيرا مني.

Show formation of Common hepatic vein

A

vitlline veins between the septum transversum and sinus venosus
they from right and left hepatic veins forming the common hepatic vein

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11
Q

لكن رجائي في فضله قد عادل خوفي منه. وقد يغلب الرجاء بقوة أسبابه، لأني رأيت أنه قد رباني منذ كنت طفلا

Does vitlline vine paly a role in forming IVC ?

A

vitlline veins between the septum transversum and sinus venosus
forms the hepatic segment of IVC which drains into RA

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12
Q

Umbilical vein which diappear

A

Right umbilical vein

الطيبين بيمشوا بدري

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13
Q

Why umbilical vein lose their connetion with heat ?

A

Because of liver enlargement so it drains into liver

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14
Q

what does umbilical vein do caudal to septum transversum ?

A

it connects the placenta to the left branch of portal vein آسف

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15
Q

What is the fate of the part of umbilical vein inside the septum transversum?

A

it connects with liver siusoids

forming ductus venosus between the left umbilical and common hepatic

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16
Q

the part of umbilical vein between septum transversum and sinus venosus fate what is it ?

A

Disappear !

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17
Q

The fate of
Left umbilical vein is ?
Ductus venosus is ?

A

Left umbilical vein is obliterated forming ligamentum teres

Ductus venosus if obliterated forming ligamentum venosum

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18
Q

obliterated forming ligamentum teres

A

The fate of

Left umbilical vein is

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19
Q

واتقون يا أولي الألباب

A

دع ما يريبك إلي ما لا يريبك !

لو كنت متوضا وصليت ولا تتذكر هل انتقض الوضوء ام لا
انت تعلم انك كنت متوضا هذا لاريب فيه ولكن الشك في الانتقاض اذن الصلاة صحيحة دع الشك
اذا كثر الوسواس فلا عبرة به

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20
Q

Cardinal vein drain ?

formed ?

A

main venous drainage of the body
is formed by union of anterior cardiac vein draining cephalic part of body
and posterior cardiac vein draining the caudal part

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21
Q

Other name of Common cardinal vein is ?

What is their fate

A

Ductus of cuvir

Left common cardianl > oblique vein of left atrium opein into coronary sinus
Right common cardinal >lower part os superior vena cava below azygous@@ important

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22
Q

Left common cardianl fate ?

A

Left common cardianl > oblique vein of left atrium

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23
Q

Right common cardinal fate ?@@ important

A

> lower part os superior vena cava below azygous

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24
Q

ولا يصدنك عن آيات الله بعد إذا أنزلت إليك

A

وادع إلي ربك

25
Q

Whate are anterior cardiac vein

A

2 veins are conneted together by oblique anstomosis making blood run from left to right

26
Q

The right anterior cardinal vein fate?

A

SVCA IINTO?
upper part of superior vena cave
Right innominate vein
Right internal jugular vein IJV

The left anterior cardinal vein fate ?
Left internal juglar vein

Left superior intercoastal vein
into inte ?

27
Q

The left anterior cardinal vein fate ?

A

The left anterior cardinal vein fate ?
Left internal juglar vein

Left superior intercoastal vein
into inte ? after losing anastomisng with right anterior cardinal vein

28
Q

The right and lef innominate origin ?

A

Right innominate : right anterior cardinal vein

left innmoinate : oblique anastomosis

29
Q

Subclavian vein ,
how is it formed?>
where it ends?

A

Its formed by the venous pleuxes of the upper limb

it ends in the anterior cardinal vein

30
Q

What about external jugular vein???<

,

A

From the veins at the mandibular region of embryo forming External jugular vein

31
Q

SO the formation of svc by ?

A

The lower part of svc below azygous by the right common cardinal
the upper part of svc by the proximal ! right anterior cadianal vein
Ant upper alphapetical order

32
Q

The posterior caridnal veins anatomse or no ?

A

they have iliac anastomsis

33
Q

The posterior cardinal veins are replaced by?

A

the supracardinal vein

the subcardinal vein

34
Q

the remenats of posteriros cardinal veins

A

2 common iliac + Root of azygous

the right posteor cardinal
right common iliac and root of azygous

the left posteror cardinal
lef common iliac

35
Q

The subcarinal and supracardinal anastomosis

A

The blood run from left to right by the transverse channels connecting :
2 supracardinals
2 subcardina
suprasubcardinal

36
Q

The subcardinal fate ?

A

it drains kidenys supra renals and gonads
giving on both sides
suprarenal vein
gonadal vein
on the right side MOST OF IVC !
forming subcardinal segement of IVC
froming hepatic suncardinal segment of IVC

37
Q

the Supracardinal anastomsis fom>

A

the connection between azygous and hemiazygous

38
Q

The anastomsis betwwen 2 sub cardinals ?>K

A

aleft left part of Renal vein

39
Q

The supra-sub cardinal anastomsis form

A

Part of renal vein on both sides

right side form part of IVC

40
Q

Mention supracardinal vein fate .

A

Cranial-caudal

cranial 
right azygous 
left hemi azygous
caudal called sacrocardinal 
right IVC 
LEFT disappear

the anastomosis between both gives connection between azyougs and hemi

41
Q

Vitelline vein and IVC?

A

Rt . Vitelline vein form the common hepatic vein which forms hepatic segment of IVC

42
Q

Right subcardinal role in formation IVC ?>

A

shares in 2 segemets of IVC
gives the subcardinal vein !
share in hepatic subcardinal segement by its connection with common hepatic vein

43
Q

Hepatic subcardinal segment OF IVC ARISE FROM

A

Connection of the RT.subcardinal vein With common hepatic vein

44
Q

The subcardinal-supracardinal segment of the IVC

A

From the subcardinal supracardinal anastomisis

45
Q

Supracardinal segment of IVC?

A

From the caudal part of Rt supracardinal vein

46
Q

The formation of IVC

Hepatic 
subcardinal hepatic
subcardinal
subsupracardinal
suprecardinal
A

It is formed by 5 segments !
Hepatic segemrnt : the right terminal of vitlline vein give common hepatic which form the hepatic segments

subcardinal hepatic segments: connection of common hepatic and right subcardinal vein

subcardinal segment : from right subcardinal vein

supre-subcardinal segments : anastomisis betweein sub and supra cardinal

supra cardinal segments caudal of Rt .supracardinal vein

47
Q

SVC anomalies

Mention

A

1-double svc when there is riht one open diectly in right atrium
and left one opens into enlarged coronary sinus in dierctly to the right atrium
2-left svc only as mentioned above withouth the right one

48
Q

Anomalies if IVC?>o

A

1-Double IVC
2- ABSENT IVC why:”?
drains into azygous into SVC into RA

49
Q 
MCQ 
1-the oblique vein formed from ?>
2-the upper svc from 
3-left brachiceoalic arise from 
4-ductus venosus is betweem ?
A

1-left common cardinal
2-right anterior cardinal
3-anastomisis between two ant cardianl
4-left umbilical vein and the common hepatic vein

50
Q

Mention Hydralazine and Na nitroprusside as vasodilators mechanism of action

A

Hydralazine :Arteriolar dilator: K+
channel opener
→ hyperpolarization → ↓ Ca++ influx
into vessel wall

Na nitroprusside : Mixed dilator: Nitric oxide donor → ↑cGMP → ↓Ca++ influx into vessel wall. Do
not need SH group (no tolerance, unlike Nitrates

51
Q

Cholesterol (27C), very hydrophobic
• 4 fused hydrocarbon rings
• (A, B, C, and D “steroid nucleus”),
8 C, branched hydrocarbon chain attached to C-17 of the D ring.
• Ring A has OH at C-3, and ring B has a double bond between C5 &
C6.

A 
• Most plasma cholesterol is in 
an esterified form (with a 
fatty acid attached at carbon 
3), which makes the structure 
even more hydrophobic than 
free(unesterified) cholesterol.
• Cholesteryl esters are not 
found in membranes, and are 
normally present only in low 
levels in most cells.
52
Q 
• Because of their hydrophobicity, 
cholesterol and its esters must be 
transported how ? in association with 
protein as a component of a 
lipoprotein particle (explained 
later) or be solubilized by 
phospholipids and bile salts in 
the bile
A

in association with protein as a component of a lipoprotein particle or
be solubilized by phospholipids and bile salts in the bile

53
Q

Importance of Cholesterol

A 
•Structural component of cell 
membranes
•It is a precursor of important 
compounds:
corticosteroids
bile acids 
sex hormone 
vit D

Cholesterol travels in the blood
transported in molecules called lipoproteins.
• These are sphere shaped assemblies
(containing lipids and proteins) that keep
• the cholesterol separated from the blood.
• The molecules have specific receptors that direct them to certain
tissues in the body

54
Q
  • HDL transport cholesterol

* LDLtransport cholesterol

A

from body tissues to the liver.

from the liver to the cells of the body

55
Q

Double SVC due to

?

A

failure of formation of cranial anastomsis

56
Q

Left svc due to ?

A

reversal of shunt

57
Q

Double IVC due to ?

A

Lost iliac anastomisis
persistant caudal of left supracardinal

the left common iliac doesn’t joint the right but conitnues as left ivc opening in left renal vein

58
Q

Absent IVC due to ?

A

Failure of the subcardinal to anastomise with common hepatic but instead with the supra cardinal s o
IVC drains into the Azygous then SVC RA

CVS ANATOMY (8 decks)

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