Vein


In the circulatory system, veins (from the Latin vena) are blood vessels that carry blood toward the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart. Veins are less muscular than arteries and are often closer to the skin. There are valves in most veins to prevent backflow.

Structure

In general, veins function to return deoxygenated blood to the heart, and are essentially tubes that collapse when their lumens are not filled with blood. The thick outermost layer of a vein is made of connective tissue, called tunica adventitia or tunica externa. There is a middle layer bands of smooth muscle called tunica media, which are, in general, much thinner than those of arteries, as veins do not function primarily in a contractile manner and are not subject to the high pressures of systole, as arteries are. The interior is lined with endothelial cells called tunica intima. The precise location of veins varies much more from person to person than that of arteries. Veins often display a lot of anatomical variation compared with arteries within a species and between species.

Podcasts:

PLAYLIST TIME:

Veins

by: Charlotte Martin

I know you know
Let the life come back and force through my veins
It goes, it goes
Through the protons, neutrons securing the frame
Say yes say no
It's a matter of me forcing the praise
Put on the new
Woman, man, and child who are breaking the braces
The catacombs
And revolving doors inside of my brain
Preachers and whores
And the neon pulpits burst into flames
I come from both
Sides of me and either side of their tracks
Humbling my ghosts
Letting life that floods my veins bring me back
The unshackling of the chains on my wrists
And the loyalty to pain that resists
And the greatest books are talking about this
Why must everybody die to exist?
Hello my love
Seeking passages and food for your soul
On 95
Look ahead cause they're not filling that hole yet
Come lay your hands
Over mine and it will make us both brave
Braver to know
Let the light, the life force back in our veins
The unshackling of the chains on my wrists
And the loyalty to pain that resists
And the greatest books are talking about this
Why must everybody die to exist?
Are you ready for the power of god?
Are you waiting for the saints to all nod?
At the girl who should be raised from the dead?
At the demons who've been forced from my head?
Oh hallelujah
Oh hallelujah
Oh hallelujah I've come undone
Oh hallelujah
Oh hallelujah
Oh hallelujah I've come undone
The unshackling of the chains on my wrists
The loyalty to pain that resists
And the greatest books are talking about this
Why must everybody die to exist?
Are you ready for the power of god?
Are you waiting for the saints to all nod?




Latest News for: veins

Edit

Catoe column: News ink runs in my veins

Progressive Journal 22 Mar 2025
On March 24, nine years ago, I was hired by The Lancaster News ... And I am so grateful that he did. This is where I have always wanted to be. News ink runs in my veins ... When I started school in 1968, I would tell my first-grade teacher, Mrs ... ....
Edit

Intravenous (IV) Therapy and Vein Access Market Research 2025-2029: Aging Population, Rise in Chronic Disease, ...

Nasdaq Globe Newswire 20 Mar 2025
Dublin, March 20, 2025 (GLOBE NEWSWIRE) -- The "Intravenous (IV) Therapy and Vein Access Market" report has been added to ResearchAndMarkets.com's offering ... .
Edit

'Football runs through my veins': Mamata Banerjee receives jersey signed by Lionel Messi, calls him 'artist with the ball'

The Times of India 20 Mar 2025
... passion for football.— MamataOfficial (@MamataOfficial) 'Football is a passion that runs through my veins, much like every person in Bengal who has ever kicked a ball on the 'para' fields.
Edit

ELVeS® Radial®: Gentle varicose vein laser therapy also impresses with good cosmetic results [read] (biolitec AG)

Public Technologies 20 Mar 2025
Varicose veins are not only a cosmetic problem, they can also cause significant discomfort - but with the innovative, minimally invasive ELVeS® Radial® laser therapy from biolitec®, there is now a gentle and effective solution for those affected.
Edit

Carlton Precious Samples High Grade Silver and Gold Veins at Esquilache (Carlton Precious Inc)

Public Technologies 19 Mar 2025
). The text version of this document is not available ... Disclaimer ... (noodl. 123122733) .
Edit

Carlton Precious Samples High Grade Silver and Gold Veins at Esquilache

Nasdaq Globe Newswire 19 Mar 2025
Twenty-four channel and panel rock chip samples were collected across the surface from mineralized veins in the Mamacocha and Creston Zones.
Edit

Spring Forward – Don’t Let Varicose Veins Hold You Back

The Marshall News Messenger 19 Mar 2025
(NewsUSA) - As the cold of winter fades, spring brings a fresh sense of renewal—and for many, it’s the first time in months they’ll be showing off their legs again. But for some, the thought of revealing their legs can ....
Edit

'Passion for football runs through my veins': Bengal CM Mamata Banerjee receives signed jersey from Lionel Messi

The Times of India 19 Mar 2025
... football player Lionel Messi.Taking to X, Banerjee said, 'Football is a passion that runs through my veins, much like every person in Bengal who has ever kicked a ball on the 'para' fields.
Edit

Norwich man died after air bubble entered vein in dialysis

BBC News 19 Mar 2025
A disabled man died after an air bubble got into a vein when his dialysis line detached from the machine ... Mr Tooke's vein had detached, causing him to bleed and an air bubble to enter his vein.
Edit

These three popular drinks could make your varicose veins worse

Daily Record 18 Mar 2025
Varicose veins are a common condition mainly affecting the legs, but a doctor has warned three particular beverages – including a morning favourite – could aggravate the condition ... .
Edit

The View Hospital Performs Pulmonary Vein Isolation Procedure, Electrophysiology Study

MENA FN 18 Mar 2025
(MENAFN - The Peninsula) The Peninsula Doha, Qatar. The View Hospital, in affiliation with Cedars-Sinai, is proud to announce a groundbreaking achievement, having successfully performed the first ... .
×