Profile
Settings
Refer your friends
Sign out
The hepatic portal vein and its tributaries make up the hepatic portal system, also known as the portal venous system. It gathers blood from various areas of the digestive tract and transports it to the liver before returning to the heart. Superior and inferior mesenteric veins, splenic vein, and hepatic portal vein are the primary veins of the hepatic portal system.
Its primary role is to provide the liver with metabolites while also ensuring that ingested compounds are processed in the liver before entering the systemic circulation, so reducing the damage that ingested toxins may cause to cells.
1. The hepatic portal vein transports blood from which area of the body to the liver?
(a) Kidney
(b) Heart
(c) Intestine
(d) None of the above
Answer: (c)
The hepatic portal vein transports blood to the liver from the spleen and gastrointestinal system. It is normally created by the joining of the superior mesenteric and splenic veins behind the upper margin of the pancreas head, and it is three to four inches long.
2. Which of the following blood arteries contains the most urea-rich blood?
(a) Dorsal aorta
(b) Hepatic portal vein
(c) Renal vein
(d) Hepatic vein
Answer: (d)
Hepatic veins are blood vessels in the liver that carry low-oxygen blood back to the heart for processing. Veins are critical components of the blood supply network, which is responsible for transporting nutrients and oxygen to all of the cells in your body. If one of your hepatic veins becomes clogged, it is possible that your liver will be injured.
3. Which of the blood vessels below does not have valves?
(a) Systemic aorta
(b) Pulmonary aorta
(c) Veins
(d) Arteries
Answer: (d)
Atherosclerosis is the term used to describe the blood vessels that carry oxygen-rich blood from the heart to the body’s tissues. Each artery is a muscular tube with three layers of smooth tissue lining it: the innermost layer, the middle layer, and the outermost layer. The intima is the deepest layer of the body, and it is lined by endothelium, which is a smooth, elastic tissue.
4. The urea level in the vein with the least amount of urea is
(a) renal vein
(b) hepatic portal vein
(c) hepatic vein
(d) pulmonary vein
Answer: (a)
The inferior vena cava is the main blood vessel that transfers blood from the kidneys and ureter to the heart, and it is located in the lower abdomen (a large vein that carries blood to the heart from the lower part of the body). Each kidney is connected to the body through a renal vein.
5. The stomach, intestine, pancreas, and spleen all have veins that drain into the spleen.
(a) superior portal vein
(b) hepatic portal vein
(c) inferior portal vein
(d) superior dorsal vein
Answer: (b)
A blood vessel that transports blood from the intestines, spleen, pancreas, and gallbladder to the liver. Also known as the portal vein.
6. The hepatic portal system transports blood from the liver to the rest of the body.
(a) liver to the digestive system
(b) liver to kidneys
(c) digestive system to the liver
(d) kidneys to liver
Answer: (c)
The hepatic portal system is the venous system that returns blood from the digestive tract and spleen to the liver. It is also known as the portal system (where raw nutrients in blood are processed before the blood returns to the heart).
7. Which blood artery transports glucose from the gastrointestinal system to the liver?
(a) Hepatic portal vein
(b) Hepatic artery
(c) Pulmonary vein
(d) None of the above
Answer: (a)
The hepatic portal vein is responsible for transporting blood from the small intestine to the liver. It is normal for the hepatic vein to transfer glucose-rich blood from the small intestines to the liver after a substantial meal.
8. Which of the following veins does not flow into the portal vein of the liver?
(a) Superior mesenteric
(b) Left gastric
(c) Splenic
(d) Renal
Answer: (d)
The ability of the kidneys to function properly is described by this word. The kidneys are responsible for removing waste and excess water from the blood (via urine) and for maintaining chemical equilibrium in the body (such as salt, potassium, and calcium).
9. The superior rectal vein leads to the
(a) portal vein
(b) inferior vena cava
(c) superior mesenteric vein
(d) none of the above
Answer: (a)
Superior rectal vein drains into the inferior mesenteric vein, which empties into the portal system after passing through it. The internal iliac vein and the inferior vena cava are the final destinations of the middle and inferior rectal veins.
10. Which region of the body delivers blood to the liver via the hepatic portal vein?
(a) Kidney
(b) Heart
(c) Stomach
(d) None of the above
Answer: (c)
Specifically, the hepatic portal vein collects blood from the stomach, intestines, pancreas, and spleen, and then transports it to and via the liver via the porta hepatis. Hepatic portal veins and the appropriate hepatobiliary artery enter the body through this opening, which also serves as the point of exit for the bile passageways, which are located in the porta hepatis.
11. The hepatic portal system is present in all
(a) amniotes only
(b) anamniotes only
(c) Amniotes and anamniotes only
(d) amphibians and mammals
Answer: (c)
In all animals, the hepatic portal system consists of a network of veins that connects the intestine, stomach, spleen, and liver to the rest of the body.
12. Which of the following hormones is responsible for the stimulation of the synthesis of pancreatic juice and bicarbonate?
(a) Insulin and glucagon
(b) Cholecystokinin and secretin
(c) Gastrin and insulin
(d) Angiotensin and epinephrine
Answer: (b)
The digestive hormone cholecystokinin (CCK), formerly known as pancreozymin, is secreted by the pancreas along with secretin as soon as food passes through the stomach and into the first part of the small intestine (duodenum).
