Pulse

Q.

Question 67
Why do veins have thin walls as compared to arteries?

Q. Cardiac output is the amount of blood pumped by the heart in.

1. one second
2. one minute
3. one beat

Q. If a person has a consecutive reading of 140/100 mm Hg in the sphygmomanometer then the person's blood pressure is -

1. Normal
2. Low
3. High
4. Moderate

Q.

SA node is called the pacemaker of the heart because

1. It conducts the impulse from the AV node

2. It generates the cardiac impulse

3. It is present in the right atrium

4. It is made up of specialized muscle fibers

Q.

The rhythmic contraction and relaxation takes place throughout life by cardiac muscles.

1. True
2. False

Q. What are the normal values of blood pressure in a normal human adult?

Q.

Cardiac muscles show rhythmic contractions. Why?

Q.

Glomerular filtration is possible because-

1. Afferent glomerular capillary is narrower than efferent glomerular capillary

2. Afferent glomerular arteriole is narrower than efferent glomerular arteriole

3. Afferent glomerular capillary is wider than efferent glomerular capillary

4. Afferent glomerular arteriole is wider than efferent glomerular arteriole

Q. BP is always measured in the upper arm artery.

1. True
2. False

Q.

Name the following:

The instrument used by doctors to hear heart sounds.

Q.

A doctor records the blood pressure of a person as 140/90 Hg. What does it indicate? What instrument is used to measure the blood pressure?

Q. Who discovered the first stethoscope?

1. Marcello Malpighi
2. Rene Lennac
3. Girolamo Fabrici
4. William Harvey

Q. People who have high BP during resting period are said to have hypertension.

1. True
2. False

Q.

Systolic pressure in normal adult humans is

1. 120 mm Hg

2. 120 /80 mm Hg

3. 150/120 mm Hg

4. 80 mm Hg

Q. Which part of the stethoscope is used to hear the heartbeat?

1. Lens
2. Tube
3. Chest piece
4. Ear piece

Q. How do veins prevent back flow of blood?

1. The stroke volume increases and pushes the blood back
2. The pressure exerted by the heart pushes the blood back
3. The valves in the veins prevent back flow of blood
4. The suction in the heart pulls up the blood

Q. have valves to prevent backflow of blood moving under low pressure.

1. Veins
2. Capillaries
3. Arteries

Q. a) What is meant by ‘heart beat’? What is the usual heart beat rate at rest?​ ​ ​ ​

Q. a) What are the upper parts of the heart called?​ ​ ​

Q.

Define osmoregulation. Mention the ways by which animals osmoregulate their body.

Q. Which among the following is the range of pulse rate in infants(6-12 months)?

1. 100-150
2. 80-120
3. 70-130
4. 90-120

Q.

What are vascular muscles?

Q.

Fill in the blanks to complete the following statements.

(xxii) The sequence of one systole followed by one diastole is termed as the __________.

Q.

varicose veins occur when veins are unable to prevent backward flow of blood in places where high blood pressure occurs such as in the feet. this causes swelling of the veins and can be very painful. malfunctioning of which structural part of the veins lead to this condition?

Q. The relationship between the heartbeat and the pulse rate is

1. Two heart beat generate one pulse
2. One heart beat generate one pulse
3. One heart beat generate three pulse
4. One heart beat generate two pulse

Q. If the systolic pressure is 120 mm Hg and diastolic pressure is 80 mm Hg, the pulse pressure is ____.

1. 120 x 80 = 9600 mm Hg
2. 120 + 80 = 200 mm Hg
3. 120-80 = 40 mm Hg
4. $\frac{120}{80}$ = 1.5 mm Hg

Q.

Write one word for the following:

The pressure that leads to pushing up of xylem sap.

Q.

Choose the correct answer from each of the four options given below:

The pulse wave is mainly caused by the

1. Systole of atria

2. Diastole of atria

3. Systole of the left ventricle

4. Systole of the right ventricle.

Q.

What is the given instrument called?

Unscramble the words given in the options to identify the instrument.

1. REPISEOCP

2. CRISMOOOCP

3. LETSCOPEE

4. SETSCOOPETH

Q. What is the normal diastolic pressure for a healthy young adult?

1. 70 mm Hg
2. 80 mm Hg
3. 120 mm Hg
4. 110 mm Hg