Cardiac Output

Q. All organisms excrete. Does an individual cell also do it? Give one example.

Q.

What are some factors that could affect cardiac output?

Q. Choose the odd one out in each of the following groups of four items each:

(a) Trachea, Bronchus, Alveolus, Diaphragm.

Q. How does parasympathetic neural signal affect the working of the heart?

1. Reduce both heart rate and cardiac output
2. Heat rate is increased without affecting the cardiac output
3. Both heart rate and cardiac output increase
4. Heart rate decreases but cardiac output increases

Q.

Among the given options, which is the byproduct of respiration?

1. Oxygen

2. Water

3. Ammonia

4. Urea

Q. Pulse is measured from .

1. nerve
2. artery
3. vein
4. capillary

Q.

Doctors use stethoscope to hear the sound ; Produced during each cardiac cycle. The second sound is heard when:

1. Ventricular walls vibrate due to the gushing of blood from atria.

2. Semilunar valves close down after the blood flows into vessels from ventricles.

3. AV node receives signal from SA node

4. AV valves open up

Q.

Identify the parts labelled 1-8 in the diagram given below.

1. 1. Nasal cavity, 2. Pharynx, 3. Trachea, 4. Lungs, 5. Bronchi, 6. Bronchioles, 7. Alveoli, 8. Diaphragm

2. 1. Nasal cavity, 2. Pharynx, 3. Trachea, 4. Lungs, 5. Bronchi, 6. Alveoli, 7. Bronchiole, 8. Diaphragm

3. 1. Nasal cavity, 2. Trachea, 3. Pharynx, 4. Lungs, 5. Bronchioles, 6. Bronchi, 7. Alveoli, 8. Diaphragm

4. 1. Nasal cavity, 2. Pharynx, 3. Lungs, 4. Bronchi, 5. Bronchioles, 6. Diaphragm, 7. Alveoli, 8. Trachea

Q.

Identify the parts labelled 1-8 in the diagram given below.

1. 1. Nasal cavity, 2. Pharynx, 3. Trachea, 4. Lungs, 5. Bronchi, 6. Bronchioles, 7. Alveoli, 8. Diaphragm

2. 1. Nasal cavity, 2. Pharynx, 3. Trachea, 4. Lungs, 5. Bronchi, 6. Alveoli, 7. Bronchiole, 8. Diaphragm

3. 1. Nasal cavity, 2. Pharynx, 3. Lungs, 4. Bronchi, 5. Bronchioles, 6. Diaphragm, 7. Alveoli, 8. Trachea

4. 1. Nasal cavity, 2. Trachea, 3. Pharynx, 4. Lungs, 5. Bronchioles, 6. Bronchi, 7. Alveoli, 8. Diaphragm

Q. How does parasympathetic neural signal affect the working of the heart?

1. Heat rate is increased without affecting the cardiac output
2. Heart rate decreases but cardiac output increases
3. Both heart rate and cardiac output increase
4. Reduce both heart rate and cardiac output

Q. The stroke volume multiplied by the ___ gives cardiac output

1. blood pressure
2. heart rate
3. pumping efficiency
4. cardiac cycle

Q. Pulse is measured from .

1. capillary
2. vein
3. artery
4. nerve

Q.

Cardiac output is defined as

1. heart rate times stroke volume

2. Blood pressure minus peripheral resistance

3. Peripheral resistance times heart rate

4. Blood pressure times peripheral resistance