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5.The force exerted by the blood against the wall of a vessel is called blood pressure. This pressure is much greater in arteries than in veins. The pressure of blood inside the artery during ventricular systole (contraction) is called systolic pressure and pressure in the artery during ventricular diastole (relaxation) is called diastolicpressure.
(iii).A person travelling through a public transport suddenly fainted. Upon check- up by a health care provider, it was found that his blood pressure was 152- 95. Name themedical condition that the person is going through. (a) Low blood pressure (b) High blood
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5.The force exerted by the blood against the wall of a vessel is called blood pressure. This pressure is much greater in arteries than in veins. The pressure of blood inside the artery during ventricular systole (contraction) is called systolic pressure and pressure in the artery during ventricular diastole (relaxation) is called diastolicpressure.
(ii).In the above case, the health care provider used an instrument to check theblood pressure of the patient. Name the instrument used by the health care provider. (a) Stethoscope (b). Pulse oximetry (c). Sphygmomanometer (d).Otoscope
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5.The force exerted by the blood against the wall of a vessel is called blood pressure. This pressure is much greater in arteries than in veins. The pressure of blood inside the artery during ventricular systole (contraction) is called systolic pressure and pressure in the artery during ventricular diastole (relaxation) is called diastolicpressure.
(i).choose the correct combination to depict the given figure: (a) x. Systolic pressure, y. Systolic pressure (b) x. Systolic pressure, y. Diastolic pressure (c)x. Diastolic pressure, y. Systolic pressure (d) x. Diastolic pressure, y. Diastolic pressure
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4. The human heart is a muscular organ made up of cardiac muscles. It is a four- chambered organ to prevent intermixing of oxygenated and de-oxygenated blood. A thick wall muscle called septum that separates the two sides left and right of the heart. Look at the picture
(iii)Pulmonary vein brings : (a) oxygenated blood from the lungs to the heart (b) de-oxygenated blood from the heart to the lungs (c) oxygenated blood from the heart to the lungs (d) de-oxygenated blood from the lungs to the heart
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4. The human heart is a muscular organ made up of cardiac muscles. It is a four- chambered organ to prevent intermixing of oxygenated and de-oxygenated blood. A thick wall muscle called septum that separates the two sides left and right of the heart. Look at the picture
(ii) The artery which carries de- oxygenated blood from the heart into lungs is called: (a) Pulmonary artery (b) Hepatic artery (c)Renal artery (d) All arteries
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4. The human heart is a muscular organ made up of cardiac muscles. It is a four- chambered organ to prevent intermixing of oxygenated and de-oxygenated blood. A thick wall muscle called septum that separates the two sides left and right of the heart. Look at the picture
(i) The upper two chambers and lower two chambers are called : (a) Ventricles and auricles respectively (b) Auricles and ventricles respectively (c) Ventricles and valves respectively (d) Arteries and veins respectively
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3.Each capillary cluster in the kidney is associated with the cup- shaped end of a tube that collects the filtered urine (see adjoining figure). Each kidney has large numbers of these filtration units called nephrons packed close together. Some substances in the initial filtrate, such as glucose, amino acids, salts and a major amount of water, are selectively re-absorbed as the urine flows along the tube. The amount of water reabsorbed depends on how much excess water there is in the body, and on how much of dissolved waste there is to be excreted. The urine forming ineach kidney eventually enters a long tube, the ureter, which connects the kidneys with the urinary bladder. Urine is stored in the urinary bladder until the pressure of the expanded bladder leads to the urge to pass it out through the urethra. The bladder is muscular, so it is undernervous control, as we have discussed elsewhere. As a result, we can usually control the urge to urinate.
(iii)The kidneys in human beings are a part of the system for (a) nutrition. (b) respiration . (c) excretion. (d) transportation
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3.Each capillary cluster in the kidney is associated with the cup- shaped end of a tube that collects the filtered urine (see adjoining figure). Each kidney has large numbers of these filtration units called nephrons packed close together. Some substances in the initial filtrate, such as glucose, amino acids, salts and a major amount of water, are selectively re-absorbed as the urine flows along the tube. The amount of water reabsorbed depends on how much excess water there is in the body, and on how much of dissolved waste there is to be excreted. The urine forming ineach kidney eventually enters a long tube, the ureter, which connects the kidneys with the urinary bladder. Urine is stored in the urinary bladder until the pressure of the expanded bladder leads to the urge to pass it out through the urethra. The bladder is muscular, so it is undernervous control, as we have discussed elsewhere. As a result, we can usually control the urge to urinate.
ii)The excretory unit in the human excretory system is called : (a) nephron (b) neuron (c) nephridia (d) kidney on
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3.Each capillary cluster in the kidney is associated with the cup- shaped end of a tube that collects the filtered urine (see adjoining figure). Each kidney has large numbers of these filtration units called nephrons packed close together. Some substances in the initial filtrate, such as glucose, amino acids, salts and a major amount of water, are selectively re-absorbed as the urine flows along the tube. The amount of water reabsorbed depends on how much excess water there is in the body, and on how much of dissolved waste there is to be excreted. The urine forming ineach kidney eventually enters a long tube, the ureter, which connects the kidneys with the urinary bladder. Urine is stored in the urinary bladder until the pressure of the expanded bladder leads to the urge to pass it out through the urethra. The bladder is muscular, so it is undernervous control, as we have discussed elsewhere. As a result, we can usually control the urge to urinate.
(i)Which of the following is the correct path taken by urine in our body ? (a) kidney → ureter → urethra → bladder (b) kidney → bladder → urethra → ureter (c )kidney → ureter → bladder → urethra (d)bladder → ...
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2.During inhalation, the diaphragm is contracted which increases the volume of the lungcavity. During exhalation, the diaphragm is relaxed which decreases the volume of thelung cavity. The given graph is related to the changes in the volume of lungs of a person at a rest over a period of 20 seconds.
(iii)During vigorous exercise, the rate of breathing of normal man is (a) 20 to 25 times per minute (b) 50 to 90 times perminute (c) 100 to 150 times per minute (d) 40 to 70 times per minute.
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