new general anatomy of veins · 2020. 5. 28. · the veins of the head and neck. deep veins of the...
TRANSCRIPT
![Page 1: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/1.jpg)
PhD, professor Vagapova V.Sh.
GENERAL ANATOMY OF VEINS
![Page 2: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/2.jpg)
The vein valves
![Page 3: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/3.jpg)
Functions of
the veins:
❖ veins pass the blood to the heart
❖ veins are the reservoir for blood
❖ veins regulate hemodynamics
❖ veinsparticipate in exchanges
between blood and tissues
![Page 4: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/4.jpg)
Veins pass the
blood to the heart
![Page 5: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/5.jpg)
The factors of
centripetal blood flow:
❖ the contraction of the muscular coat of
the veins
❖ the vein valves
❖ the contraction of the skeletal muscles
❖ the suction action of the heart and the
thoracic cavity
❖ the difference in blood pressure
between the arteries and veins
![Page 6: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/6.jpg)
The receptors located
in the veins walls:
❖mechanoreceptors
❖chemoreceptors
❖thermoreceptors
❖baroreceptors Reflexes:
❖ vein-veins
❖ vein-arterial
❖ vein-lymphatic
![Page 7: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/7.jpg)
The principle of organization of the
venous system is CONVERGING
Two exceptions:
• the portal vein of the liver
• the portal vein of the adenohypophysis
![Page 8: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/8.jpg)
The portal vein
of the liver
![Page 9: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/9.jpg)
The portal vein
of the
adenohypophysis
![Page 10: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/10.jpg)
![Page 11: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/11.jpg)
blood capillaries postcapillaries venules
inraorganic veins extraorganic veins
veins of small caliber veins of middle caliber
veins of large caliber great veins the greatest veins
![Page 12: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/12.jpg)
The veins can be
divided into two
groups:
❖ somatic veins
❖ cavity veins
![Page 13: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/13.jpg)
Somatic veins are divided into
❖ superficial
❖ deep
![Page 14: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/14.jpg)
Superficial veins
of the upper
extremity
![Page 15: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/15.jpg)
The veins of the
head and neck
![Page 16: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/16.jpg)
Deep veins of the
upper extremity
![Page 17: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/17.jpg)
The veins of the head:
❖ intracranial
❖ extracranial
![Page 18: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/18.jpg)
The sinuses of
dura mater
![Page 19: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/19.jpg)
The peculiarities of the sinuses:
❖ the walls of sinuses are composed of tightly
stretched layers of dura mater
❖ they never collapse
❖ they provide venous blood in changes of
intracranial pressure
❖ they have no valves
![Page 20: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/20.jpg)
Extracranial veins of
the head:
• superficial
• deep
![Page 21: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/21.jpg)
The veins of the
head and neck
![Page 22: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/22.jpg)
Anastomoses between
intracranial and extracranial
veins are:
• By means of emissary veins
• By means of diploic veins
• By means of the vena
ophthalmica
• By means of the small veins
leaving the skull together with the
cranial nerves
![Page 23: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/23.jpg)
The veins of the
cavities:
• the parietal veins
• the visceral veins
![Page 24: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/24.jpg)
The parietal veins
![Page 25: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/25.jpg)
Venous plexuses
of pelvis
![Page 26: New GENERAL ANATOMY OF VEINS · 2020. 5. 28. · The veins of the head and neck. Deep veins of the upper extremity. The veins of the head: intracranial extracranial. The sinuses of](https://reader033.vdocument.in/reader033/viewer/2022052105/60407cb01f83332acb5ab922/html5/thumbnails/26.jpg)
Venous vertebral plexuses