Explain the mechanism of transport of water in plants.
How does peripheral vascular resistance affect blood pressure?
An artificial pacemaker is implanted subcutaneously and connected to the heart in patients
Having blockage of the three main coronary arteries
Having a very high blood pressure
With irregularity in heart rhythm
Suffering from arteriosclerosis
- 130/90 mm Hg is considered high and requires treatment
- 100/ 55 mm Hg is considered an ideal blood pressure
- 105/50 mm Hg makes one very active
- 190/110 mm Hg may harm vital organs like brain and kidney
Assertion: The normal heart rate is 75 beats/min and the cardiac cycle is 0.8 sec.
Reason: Cardiac cycle is inversely proportional to the heart rate.
- If both assertion and reason are false
- If an assertion is true but the reason is false
- If both assertion and reason are true then the reason is not the correct explanation of assertion
- If both assertion and reason are true and the reason is the correct explanation of assertion.
List the two vital functions of kidneys.
Define systolic and diastolic pressure.
The volume of blood pumped out by the Rt and Lt ventricles is different
The volume of blood pumped out by the Rt and Lt ventricles is same
The volume of blood received by the aorta and pulmonary artery is different
The volume of blood received by each atrium is different
Why is the heartbeat rate equal to the arterial pulse rate?
Fill in the blanks.
(xv) The full form of SA node is _______.
In a healthy adult man the normal diastolic pressure is:
80 mm Hg
90 mm Hg
100 mm Hg
120 mm Hg
What is a blood circulation disorder?
- Same as that in the aorta
- More than that in the carotid
- More than that in the pulmonary vein
- Less than that in the venae cavae
Landsteiner and Wiener
- Sympathetic and somatic nervous system
- Sympathetic and parasympathetic nervous system
- Central and somatic nervous system
- Central and parasympathetic nervous system
- Causes stickiness in the nasal passage
- Causes weakening and paralysis of cilia in the upper respiratory tract
- Leads to addiction
- Affects only in combination with nicotine
(d) Name the two main stages of urine formation.
The normal blood pressure in human adult is
60/90 mm Hg
90/60 mm Hg
120/80 mm Hg
80/120 mm Hg
- More salt is absorbed in the body of a patient with hypertension
- High salt leads to water retention in the blood that further increases the blood pressure
- High salt increases nerve conduction and increases blood pressure
- High salt causes adrenaline release that Increases Wood pressure
Given below are the abnormal conditions related to blood circulation. Name the disorders
(i) Acute chest pain due to failure of O2 supply to heart muscles
(ii) Increased systolic pressure
What Is diastolic dysfunction and increase LV filling pressures?
The food molecules move upward through the phloem tissue.
- all of these
- 120/80 mmHg , hypertension
- 120/80 mmHg, high blood pressure
- 80/120 mmHg, blood tension
- both a and c
Which one of the following sentences is wrong?
When arterioles reach the capillaries blood pressure drops
Small arteries are called arterioles
Small arterioles regulate the flow of blood into each capillary
Blood pressure is lower in the arteries than in the arterioles