Tag: transport in animals
Questions Related to transport in animals
Which of the following vessel in rabbit starts with capillaries and ends in capillaries?
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Pulmonary artery
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Renal vein
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Hepatic portal vein
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Renal artery
The hepatic portal system includes the veins that drain blood from capillaries in the spleen, stomach, pancreas, and intestine. Instead of emptying their blood directly into the inferior vena cava, they deliver it by way of the hepatic portal vein to the liver. Upon entering the liver, the portal vein divides and sub-divides into ever smaller branches. Eventually, the portal blood flows into a vast network of sinus like vessels called sinusoids. These are enlarged capillaries that serve as blood channels within the tissues of the liver, spleen, thyroid gland, and other structures. After leaving the sinusoids, blood is finally collected by the hepatic veins, which empty into the inferior vena cava.
Hepatic portal system connects
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Digestive system to liver.
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Kidney to liver.
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Liver to digestive system.
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Liver to kidney.
Mark the correct statement about lymph.
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It Maintains the volume of blood.
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It destroys the invading microbes.
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Both A and B are true for lymph
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None of these
Lymph acts as middle man which transports food materials, oxygen, hormones etc. to the body cells and brings carbon dioxide and other metabolic wastes from the body cells to blood and then finally pours the same into venous system. It destroys the invading germs and it maintains the volume of blood.
Middle man of blood is _______
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RBCs
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Lymph
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Platelets
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Serum
Lymph acts as middle man which transports food materials, oxygen, hormones etc to the body cells and brings carbon dioxide and other metabolic wastes from the body cells to blood and then finally pours the same into venous system.
The veins starting from the stomach and intestines do not directly convert the blood to the posterior vena cava. Instead, they first enter the ........... as a combined hepatic portal vein.
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Kidney
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Pancreas
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Spleen
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Liver
The hepatic portal vein carries blood from the spleen and intestines into the liver. The veins from the spleen and intestines break into capillaries before entering the liver as the hepatic portal vein.
Which of the following is an example of portal vein?
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Renal portal vein
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Hepatic portal vein
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Both A and B
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None of the above
The hepatic portal vein carries blood from the spleen and intestines into the liver. The veins from the spleen and intestines break into capillaries before entering the liver as the hepatic portal vein.
Artificial pacemaker is implanted subcutaneously for correcting
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90% blockage of coronary arteries
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High blood pressure
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Arteriosclerosis
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Irregularity of heart rhythm.
A portal system is one in which
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A vein starts from an organ and ends up in heart.
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A vein starts from an organ and ends up in another organ.
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A vein starts from heart and ends up in lungs.
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None of the above.
Both hepatic and renal portal systems are found in
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Fishes, amphibians, reptiles
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Amphibians, reptiles, mammals
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Reptiles, aves, mammals
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Cyclotomes, fishes, amphibians
Hepatic (liver) portal system collects blood from the intestine and passes it to the liver and renal (kidney) portal system collects blood from renal glomeruli and passes it to peritubular plexus (the blood capillaries that surrounds the proximal and distal convoluted tubules). Both hepatic and renal portal systems are found in fishes, amphibians and reptiles. In mammals only hepatic portal system is present.
Valve surrounding opening of coronary sinus is
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Thebesius valve
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Eustachian valve
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Mitral valve
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Semilunar valve.