Last seen: Jul 27, 2023
Correct Option: Blood Cells Amount / Number Property (B) Neutrophils → 60-65% of the total blood cells → Phagocytic cells
Correct Option: (C) A, C only
Correct Option: (B) Plasma Explanation: The blood is composed of a faintly yellow transparent fluid known as the plasma and floating in this fluid...
Correct Option: (B) Thick–walled and blood flows under high pressure. Explanation: Arteries are thick walled, carrying oxygenated blood from heart...
Correct Option: (A) Man Explanation: Myogenic heart is found in mollusca and vertebrates.
Correct Option: (C) Snake Explanation: Four chambered heart is found only in mammals and birds except some reptiles such as crocodiles, gavialis a...
Correct Option: (C) 120 mm Hg and 80 mm Hg Explanation: In a normal human being, the systolic and diastolic blood pressures are respectively 120 m...
Correct Option: (A) Mitral valve Explanation: The bicuspid valve between the left atrium and the left ventricle of mammalian heart is known as mit...
Correct Option: (A) Lower vertebrates Explanation: Neurogenic heart stops beating on cutting nerve supply.
Correct Option: (D) William Harvey Explanation: The first human heart transplant was performed on 3rd December, 1967 by a team of 30 doctors heade...
Correct Option: (D) Myocardium Explanation: Middle layer of heart is myocardium. It is highly vascular layer, composed of cardiac fibres joined to...
Correct Option: (A) Ventricle of heart Explanation: Chordae tendinae are numerous, strong inelastic thread like tendons present in the ventricles ...
Correct Option: (A) Pericardium Explanation: Heart is enclosed in a double walled sac called the pericardium that consists of an outer fibrous and...
Correct Option: (A) S.A. node Explanation: S.A node generates a maximum of 70-75 action potentials per minute. Since, it is responsible for initia...
Correct Option: (A) Right auricle Explanation: In fact tricuspid valve is present at right atrio-ventricular aperture but it is completely located...
Correct Option: (C) Heart Explanation: Within the basal part of interatrial septum.
Correct Option: (B) A = t, B = r, C = p, D = s
Correct Option: (B) Veins
Correct Option: (B) Neutrophils Explanation: Neutrophils are leucocytes having 5-7 lobed nucleus.
Correct Option: (D) Arterioles Explanation: The branches of arteries called arterioles further branch into capillaries in the tissues.