NEET TEST SERIES 119 BIOLOGY

(a) (i) and (ii)
(b) (ii) and (iv)
(c) All of these
(d) None of these

(a) Lubb – Sharp closure of AV valves at the beginning of ventricular systol
(b) Dup – Sudden opening of semilunar valves at the beginning of ventricular diastole.
(c) Pulsation of the radial artery valves in the blood vessels.
(d) Purkinje fibers – Initiation of the heart beat

(a) Complex QRS-One complete Pulse
(b) Peak T – Initiation of total cardiac contraction
(c) Peak P and Peak R together-Syslolic and diastolic blood pressures
(d) Peak P- Initiation of left atrial contraction only

(a) Only (i) and (ii)
(b) Only(ii)
(c) Only (iii) and (iv)
(d) Only (i) and (iv)

(a) that can be tilled in lungs by forceful inspiration.
(b) that can be breathed out after forceful expiration.
(c) that remains in the lungs after normal expiration.
(d) that remains in the lungs after forceful expiration.