Blood Pressure

Q.

Explain the mechanism of transport of water in plants.

Q.

How does peripheral vascular resistance affect blood pressure?

Q.

An artificial pacemaker is implanted subcutaneously and connected to the heart in patients

1. Having blockage of the three main coronary arteries

2. Having a very high blood pressure

3. With irregularity in heart rhythm

4. Suffering from arteriosclerosis

Q. Explain the mechanism of formation of concentrated urine in mammals.

Q. The walls of ventricles are much thicker than atria. Explain

Q. Mineral ions diffuse out of the xylem vessels at the fine vein ending and are passively taken up by the cells.

1. True

2. False

Q. Which one of the following statements is correct regarding blood pressure?

1. 130/90 mm Hg is considered high and requires treatment
2. 100/ 55 mm Hg is considered an ideal blood pressure
3. 105/50 mm Hg makes one very active
4. 190/110 mm Hg may harm vital organs like brain and kidney

Q.

Assertion: The normal heart rate is $75\text{beats}/\text{min}$ and the cardiac cycle is $0.8sec$. ​

Reason: Cardiac cycle is inversely proportional to the heart rate.

1. If both assertion and reason are false​
2. If an assertion is true but the reason is false​
3. If both assertion and reason are true then the reason is not the correct explanation of assertion​
4. If both assertion and reason are true and the reason is the correct explanation of assertion.​

Q.

List the two vital functions of kidneys.

Q.

Define systolic and diastolic pressure.

Q. Which among the following is correct during each cardiac cycle?

1. The volume of blood pumped out by the $Rt$ and $Lt$ ventricles is different

2. The volume of blood pumped out by the $Rt$ and $Lt$ ventricles is same

3. The volume of blood received by the aorta and pulmonary artery is different

4. The volume of blood received by each atrium is different

Q.

Why is the heartbeat rate equal to the arterial pulse rate?

Q. In an adult human the ideal value of systolic and diastolic pressure in (mm of Hg) is

1. 100/60
2. 120/80
3. 140/90
4. 80/120

Q.

Fill in the blanks.

(xv) The full form of SA node is _______.

Q. In an adult human the ideal value of systolic and diastolic pressure in (mm of Hg) is

1. 100/60
2. 120/80
3. 140/90
4. 80/120

Q.

In a healthy adult man the normal diastolic pressure is:

1. 80 mm Hg

2. 90 mm Hg

3. 100 mm Hg

4. 120 mm Hg

Q.

What is a blood circulation disorder?

Q. Blood pressure in the pulmonary artery is:

1. Same as that in the aorta
2. More than that in the carotid
3. More than that in the pulmonary vein
4. Less than that in the venae cavae

Q. Blood circulation was discovered by

1. 
   William Harvey
2. 
   Hippocrates
3. 
   Karl Landsteiner
4. 
   Landsteiner and Wiener

Q. The functions of our visceral organs are controlled by?

1. Sympathetic and somatic nervous system
2. Sympathetic and parasympathetic nervous system
3. Central and somatic nervous system
4. Central and parasympathetic nervous system
   

Q. How does cigarette tar affect our body

1. Causes stickiness in the nasal passage
2. Causes weakening and paralysis of cilia in the upper respiratory tract
3. Leads to addiction
4. Affects only in combination with nicotine

Q. The given diagram represents a nephron and its blood supply. Study the diagram and answer the following question:

(d) Name the two main stages of urine formation.

Q.

The normal blood pressure in human adult is

1. 60/90 mm Hg

2. 90/60 mm Hg

3. 120/80 mm Hg

4. 80/120 mm Hg

Q. Persons suffering from hypertension (high blood pressure) are advised a low-salt diet because

1. More salt is absorbed in the body of a patient with hypertension
2. High salt leads to water retention in the blood that further increases the blood pressure
3. High salt increases nerve conduction and increases blood pressure
4. High salt causes adrenaline release that Increases Wood pressure

Q.

Given below are the abnormal conditions related to blood circulation. Name the disorders

(i) Acute chest pain due to failure of $O_2$ supply to heart muscles

(ii) Increased systolic pressure

Q.

What Is diastolic dysfunction and increase LV filling pressures?

Q.

The food molecules move upward through the phloem tissue.

1. True
2. False

Q. Blood pressure is measured in

1. capillaries
2. veins
3. arteries
4. all of these

Q. The normal blood pressure is _______, the condition when the blood pressure exceeds the normal is called as _______.

1. 120/80 mmHg , hypertension
2. 120/80 mmHg, high blood pressure
3. 80/120 mmHg, blood tension
4. both a and c

Q.

Which one of the following sentences is wrong?

1. When arterioles reach the capillaries blood pressure drops

2. Small arteries are called arterioles

3. Small arterioles regulate the flow of blood into each capillary

4. Blood pressure is lower in the arteries than in the arterioles