If cardiac output is $4200 \text{ ml/min}$,then $x$ beats/min is the heart rate and $y$ is the term for pulse rate.
- A$x - 50, y - \text{tachycardia}$
- B$x - 72, y - \text{bradycardia}$
- C$x - 60, y - \text{bradycardia}$
- D$x - 70, y - \text{tachycardia}$
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$R$: Elevated $Na^+$ levels increase the excitability of the $SA$ node.
$R$: Elevated $Na^+$ levels increase the excitability of the $SA$ node.
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View SolutionIdentify the correct option:
Vessel Renal vein Pulmonary artery Hepatic portal vein Main Aortic arch $(a)$ $PO_2 = 95 \, mm \, Hg, PCO_2 = 40 \, mm \, Hg$ Less concentration of ions in blood More fatty acid and glycerol in the blood $PO_2 = 95 \, mm \, Hg, PCO_2 = 40 \, mm \, Hg$ $(b)$ Blood $pH = 7.4$ Less excretory substances than other blood vessels More nutritive substances More oxygen than pulmonary artery $(c)$ Less excretory wastes $PO_2 = 40 \, mm \, Hg, PCO_2 = 45 \, mm \, Hg$ Less amount of fatty acid and glycerol compare to other blood vessels More excretory substances than renal vein $(d)$ More oxygen than pulmonary artery More excretory waste than renal vein $PO_2 = 95 \, mm \, Hg, PCO_2 = 40 \, mm \, Hg$ Less excretory waste than hepatic portal vein
| Vessel | Renal vein | Pulmonary artery | Hepatic portal vein | Main Aortic arch |
|---|---|---|---|---|
| $(a)$ | $PO_2 = 95 \, mm \, Hg, PCO_2 = 40 \, mm \, Hg$ | Less concentration of ions in blood | More fatty acid and glycerol in the blood | $PO_2 = 95 \, mm \, Hg, PCO_2 = 40 \, mm \, Hg$ |
| $(b)$ | Blood $pH = 7.4$ | Less excretory substances than other blood vessels | More nutritive substances | More oxygen than pulmonary artery |
| $(c)$ | Less excretory wastes | $PO_2 = 40 \, mm \, Hg, PCO_2 = 45 \, mm \, Hg$ | Less amount of fatty acid and glycerol compare to other blood vessels | More excretory substances than renal vein |
| $(d)$ | More oxygen than pulmonary artery | More excretory waste than renal vein | $PO_2 = 95 \, mm \, Hg, PCO_2 = 40 \, mm \, Hg$ | Less excretory waste than hepatic portal vein |
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