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Each side of the diaphragm drains into a phrenic vein    ; the right phrenic vein empties directly into the inferior vena cava, whereas the left phrenic vein empties into the left renal vein. Blood supply from the liver drains into each hepatic vein    and directly into the inferior vena cava. Since the inferior vena cava lies primarily to the right of the vertebral column and aorta, the left renal vein is longer, as are the left phrenic, adrenal, and gonadal veins. The longer length of the left renal vein makes the left kidney the primary target of surgeons removing this organ for donation. [link] provides a flow chart of the veins flowing into the inferior vena cava. [link] summarizes the major veins of the abdominal region.

Venous flow into inferior vena cava

This chart shows the connection between the different veins and the inferior vena cava.
The flow chart summarizes veins that deliver blood to the inferior vena cava.
Major Veins of the Abdominal Region
Vessel Description
Inferior vena cava Large systemic vein that drains blood from areas largely inferior to the diaphragm; empties into the right atrium
Lumbar veins Series of veins that drain the lumbar portion of the abdominal wall and spinal cord; the ascending lumbar veins drain into the azygos vein on the right or the hemiazygos vein on the left; the remaining lumbar veins drain directly into the inferior vena cava
Renal vein Largest vein entering the inferior vena cava; drains the kidneys and flows into the inferior vena cava
Adrenal vein Drains the adrenal or suprarenal; the right adrenal vein enters the inferior vena cava directly and the left adrenal vein enters the left renal vein
Testicular vein Drains the testes and forms part of the spermatic cord; the right testicular vein empties directly into the inferior vena cava and the left testicular vein empties into the left renal vein
Ovarian vein Drains the ovary; the right ovarian vein empties directly into the inferior vena cava and the left ovarian vein empties into the left renal vein
Gonadal vein Generic term for a vein draining a reproductive organ; may be either an ovarian vein or a testicular vein, depending on the sex of the individual
Phrenic vein Drains the diaphragm; the right phrenic vein flows into the inferior vena cava and the left phrenic vein empties into the left renal vein
Hepatic vein Drains systemic blood from the liver and flows into the inferior vena cava

Veins draining the lower limbs

The superior surface of the foot drains into the digital veins, and the inferior surface drains into the plantar veins    , which flow into a complex series of anastomoses in the feet and ankles, including the dorsal venous arch    and the plantar venous arch    ( [link] ). From the dorsal venous arch, blood supply drains into the anterior and posterior tibial veins. The anterior tibial vein    drains the area near the tibialis anterior muscle and combines with the posterior tibial vein and the fibular vein to form the popliteal vein. The posterior tibial vein    drains the posterior surface of the tibia and joins the popliteal vein. The fibular vein    drains the muscles and integument in proximity to the fibula and also joins the popliteal vein. The small saphenous vein    located on the lateral surface of the leg drains blood from the superficial regions of the lower leg and foot, and flows into to the popliteal vein    . As the popliteal vein passes behind the knee in the popliteal region, it becomes the femoral vein. It is palpable in patients without excessive adipose tissue.

Questions & Answers

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renah Reply
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vipin
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vipin
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Adnan
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Khadar
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Sayo
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Masiame
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Samuel
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In biology, a blastomere is a type of cell produced by cleavage (cell division) of the zygote after fertilization and is an essential part of blastula formation.
Adnan
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Shivaani
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. ... Cells have many parts, each with a different
Adnan
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Sushma
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Shilpa
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Shilpa
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. ... Cells have many parts, each with a different
Adnan
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DAMINI Reply
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Tg Reply
A normal level of oxygen is usually 95% or higher. Some people with chronic lung disease or sleep apnea can have normal levels around 90%. The “SpO2” reading on a pulse oximeter shows the percentage of oxygen in someone's blood
Adnan
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Ajibola Reply
The cytoplasm is 90℅ water and 10℅ of organic and inorganic compounds. The cytoplasm contains mitochondria. ... Lysosomes of Cytoplasm contains 50 different enzymes that digest proteins, lipids, and nucleic acids. The endoplasmic reticulum produces process and transport proteins, lipids for all the
Adnan
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Source:  OpenStax, Anatomy & Physiology. OpenStax CNX. Feb 04, 2016 Download for free at http://legacy.cnx.org/content/col11496/1.8
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