Blood Pressure

What is responsible for generating BP?

• Contraction of atria

• Contraction of ventricles

• Relaxation of atria

• Relaxation of ventricles

Which device is used to measure BP?

• Electrocardiograph

• Sphygmomanometer

• Pulse Oximeter

• None of the above

What do you mean by systolic BP?

• Force exerted on the wall due to ventricular contraction

• Force exerted on the wall due to ventricular relaxation

• Force exerted on the wall due to atrial contraction

• Force exerted on the wall due to atrial relaxation

Systolic Pressure depends on which factor?

• Cardiac Output

• Total Resistance Pressure

• Both of them

• None of them

Diastolic Pressure depends on which factor?

• Cardiac Output

• Total Resistance Pressure

• Both of them

• None of them

Which of the following above decrease BP?

• Vasoconstriction

• Release of ADH (Anti diuretic hormone)

• Increased Blood Volume

• None of the above

In high altitudes , the haemoglobin level is ---------- than usual.

Answer explanation

At high altitudes, the hemoglobin value is higher. This is because at higher altitudes, there is a decrease in the availability of oxygen in the atmosphere. In response to this, the body compensates by increasing the production of red blood cells and hemoglobin. Hemoglobin is responsible for carrying oxygen from the lungs to the tissues, so an increase in its value helps to ensure that an adequate amount of oxygen reaches the body's cells despite the lower oxygen levels at high altitudes.

The polypeptide chains of haemoglobin A are composed of?

• 1 alpha, 2 beta chains

• 2 alpha, 2 beta chains

• 2 alpha, 1 beta chain

• 1 alpha, 3 beta chains

•  

  In the breakdown of RBCs, bilirubin is:

• A. 

  Reused by new red cells

• B. 

  Oxidized to biliverdin

• C. 

  Returned to the pool

• D. 

  Excreted

Answer explanation

Bilirubin, a yellow pigment, is a byproduct of the breakdown of red blood cells (RBCs). It is released from the RBCs and transported to the liver, where it is conjugated and converted into a water-soluble form. This conjugated bilirubin is then excreted from the body through bile, which is ultimately eliminated in the feces. Therefore, bilirubin is excreted from the body as a waste product.