Tag: circulation of blood

Questions Related to circulation of blood

Pulse can be palpated from 

evs circulation of blood blood transfusion transfusion of blood blood and organ donation

  1. Carotid artery

  2. Radial artery

  3. Femoral artery

  4. All of the above

Show answer
Correct Option: D
Explanation:

Pulse is a pressure wave that travels through the arteries after each ventricular systole. The pulse can be felt in any artery that lies near the surface of the body. Carotid artery (neck region), radial artery (forearm) and femoral artery (legs) all of them are situated near the surface of the body. Thus pulse can be palpated from all of them.

So, the correct answer is option D.

The pulse beat is measured by the

evs circulation of blood blood transfusion transfusion of blood blood and organ donation

  1. Artery

  2. Capillary

  3. Vein

  4. None

Show answer
Correct Option: A
Explanation:

The arteries are superficial at some points in the body. In these places, the heart beat is felt as pulses like the radial, brachial pulse. 

The rhythmic contraction and relaxation of heart muscles makes a

evs circulation of blood blood transfusion transfusion of blood blood and organ donation

  1. Heart stroke

  2. Heart rate

  3. Heart beat

  4. None of the above

Show answer
Correct Option: C
Explanation:

The heart is pumping organ of human body and is situated in the thoracic cavity in the space between two lungs which is known as mediastinum. Heartbeat is rhythmic contraction and relaxation of heart muscles is called as a heart beat. Heart rate is the speed of heart beat measured by a number of contraction of the heart per minute. There is no term like heart stroke. When the blood vessel supplying blood to the brain are clogged it is known as brain stroke. Thus the correct answer is C.

The relationship between the heartbeat and the pulse rate is 

evs circulation of blood blood transfusion transfusion of blood blood and organ donation

  1. One heart beat generate two pulse

  2. Two heart beat generate one pulse

  3. One heart beat generate one pulse

  4. One heart beat generate three pulse

Show answer
Correct Option: C
Explanation:
This sequential event in the heart which is cyclically repeated is called the cardiac cycle. Each cardiac cycle consists of systole and diastole of both the atria and ventricles. Each cardiac cycle represents one heartbeat. The normal heart rate is about 72 beats per minute. The heart rate is same as pulse rate because the pumping action of the heart causes an increase in blood pressure in arteries that leads to noticeable pulse. Hence the relationship between the heartbeat and the pulse rate is one heartbeat generates one pulse.
So, the correct answer is 'One heartbeat generate one pulse'.

Rubber tube, ear piece and diaphragm are parts of a

evs circulation of blood blood transfusion transfusion of blood blood and organ donation

  1. Headphone

  2. Microphone

  3. Periscope

  4. Stethoscope

Show answer
Correct Option: D
Explanation:

The stethoscope is an acoustic (hearing) medical device used for auscultation(listening of internal sounds of the body. The doctor will place a small metal circle called a bell (hallow disc) or diaphragm (plastic disc), against the chest, at the spot where a person can feel the heartbeat. The stethoscope is composed of rubber tube, earpiece and diaphragm.

So, the correct answer is 'Stethoscope'.

The heart is protected by the

evs circulation of blood blood transfusion transfusion of blood blood and organ donation

  1. Diaphragm

  2. Rib cage

  3. Skull

  4. None of the above

Show answer
Correct Option: B
Explanation:

The human circulatory system consists of a muscular four-chambered heart, a network of closed branching blood vessels and blood, the fluid which is circulated. The heart is mesodermal in origin. It is situated in the thoracic cavity, in between the two lungs. The rib cage partially encloses and protect chest cavity. In the chest cavity heart and lungs are present. Hence, the heart is protected by the rib cage.

So, the correct answer is 'Ribcage'.

Aniruddha wants to make a stethoscope. He is confused what he should use for its tube portion. Help him.

evs circulation of blood blood transfusion transfusion of blood blood and organ donation

  1. Wollen tube

  2. Iron tube

  3. Rubber tube

  4. Plastic tube

Show answer
Correct Option: C

Which of the following can be used to make a stethoscope at home?

evs circulation of blood blood transfusion transfusion of blood blood and organ donation

  1. Rubber tube

  2. Balloon

  3. Funnel

  4. All of the above

Show answer
Correct Option: D
Explanation:

Steps to construct a stethoscope at home:

1) Take a funnel and put its small end at one end of the flexible tube. Push the funnel as far as u can into the tube.
2) Tape the funnel using suitable tape.
3) Inflate the balloon to stretch it out. Let the air out and then cut the neck of the ballon.
3) Stretch the remaining part of the balloon tightly over the open end of the funnel, and tape it. This creates the tympanic membrane for the stethoscope
4) Place the funnel end of the stethoscope on to the chest and end of the tube to the ear to listen to the heartbeat.
Hence rubber tube, balloon and funnel can be used to make a stethoscope at home.
So, the correct answer is 'All of the above'.

Raman went to the doctor. On which side of the chest will the doctor keep the stethoscope for hearing his heartbeat?

evs circulation of blood blood transfusion transfusion of blood blood and organ donation

  1. Right side

  2. Middle

  3. Left side

  4. None of the above

Show answer
Correct Option: C
Explanation:

In humans, heart is present in the chest region. It is located between the lungs and above the diaphragm. The heart is made of auricles and ventricles. Ventricles are the pumping chambers of the heart. The right ventricles pump blood to the lungs and the left ventricles pump blood to the whole body. The heart is slightly tilted towards the left side and so a stronger heartbeat can be felt on left side. Hence the doctor will keep the stethoscope for hearing Raman's heartbeat on the left side of his chest.

Thus the correct answer is option C.

The movement in the vessels on the wrist is due to the 

evs circulation of blood blood transfusion transfusion of blood blood and organ donation

  1. Beat

  2. Pulse

  3. Pulse rate

  4. Heartbeat

Show answer
Correct Option: B
Explanation:

This sequential event in the heart which is cyclically repeated is called the cardiac cycle. Each cardiac cycle consists of systole and diastole of both the atria and ventricles. Each cardiac cycle represents one heartbeat. The normal heart rate is about 72 beats per minute. The heart rate is same as pulse rate because the pumping action of the heart causes an increase in blood pressure in arteries. Hence the movement in the vessels on the wrist is due to the pulse.

So, the correct answer is 'Pulse'.