Biology
Complete the following statements by filling in the blanks from the choices given in the brackets.
(a) The blood vessel that begins and ends in capillaries is the …………… (hepatic artery/hepatic portal vein/hepatic vein).
(b) A blood vessel which has small lumen and thick wall is …………… (capillary/lymphatic duct/artery/venule)
(c) The valve which prevents the back flow of blood in the veins and lymph vessels …………… (mitral valve/tricuspid valve/pocket-shaped valve).
(d) An anticoagulant present in the blood is …………… (heparin/hirudin/thromboplastin/calcium).
Answer
(a) The blood vessel that begins and ends in capillaries is the hepatic portal vein.
(b) A blood vessel which has small lumen and thick wall is artery.
(c) The valve which prevents the back flow of blood in the veins and lymph vessels is pocket-shaped valve.
(d) An anticoagulant present in the blood is heparin.
Related Questions
Name these:
(a) Three components of circulatory system
(b) Three kinds of blood cells
(c) Three kinds of blood vessels
(d) Three circulating fluids in human body
(e) Three non-circulating fluids in human body
(f) Two lymphatic organs
(g) Two components of blood
(h) Two kinds of circulatory systems in different animals
(i) Two components of haemoglobin
(j) Two phases of circulation of blood in human body
Name the following:
(a) Any one vein which starts from an organ and ends in another organ besides the heart.
(b) The kind of blood vessels which have no muscular walls.
(c) The artery which carries deoxygenated blood.
(d) The kind of blood cells which can squeeze out through the walls of one category of blood vessels.
(e) The smallest common blood vessels formed by the union of capillaries.
(f) The blood vessels which start from capillaries and end in capillaries.
(g) The phase of the cardiac cycle in which the auricles contract.
(h) The valve present in between the chambers on the right side of the human heart.
(i) The phase of the cardiac cycle in which the ventricles get filled with blood from the atrium.
(j) The fluid found between the membranes of the heart.
Note the relationship between the first two words and suggest the suitable word/words for the fourth place:
(a) Lub : Atrio-ventricular valve :: Dup : ……………
(b) Coronary artery : Heart :: Hepatic artery : ……………
(c) RBCs : Polycethemia :: WBCs : ……………
(d) WBCs : …………… :: RBCs : Erythropenia
(e) Chest pain : Angina pectoris :: Heart attack: ……………
Enumerate the structural differences between white blood cells and red blood cells.