Body Fluids and Circulation · Question 38

The given figure shows schematic plan of blood circulation in humans with labels A to D. Identify the label and give its functions? [figure]

1. A - Pulmonary vein - takes impure blood from body parts, pO2 = 60 mm Hg
2. B - Pulmonary artery - takes blood from heart to lungs, pO2 = 90 mm Hg
3. C - Vena cava - takes blood from body parts to right auricle, pCO2 = 45 mm Hg
4. D - Dorsal aorta - takes blood from heart to body parts, pO2 = 95 mm Hg

The figure shows blood circulation in humans with labels A to D. Select the option which gives correct identification of label and functions of the part. [Figure]

1. A - Artery-Thick walled and blood flows evenly
2. C - Vein-Thin walled and blood flows in jerks/spurts
3. D - Pulmonary vein-Takes oxygenated blood to heart, pO2 = 95 mmHg
4. B - Capillary-Thin without muscle layer and wall two cell layers thick

The figure shows a human blood cell. Identify it and give its characteristics. [Figure]

1. Blood cell Monocyte, Characteristics Life span of 3 days, produces antibodies
2. Blood cell B-lymphocyte, Characteristics Forms about 20% of blood cells involved in immune response
3. Blood cell Basophil, Characteristics Secretes serotonin, inflammatory response
4. Blood cell Neutrophil, Characteristics Most abundant blood cells, phagocytic

Which one of the following human organs is often called the "graveyard" of RBCs?

1. Gall bladder
2. Kidney
3. Spleen
4. Liver

A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor?

1. Blood group B
2. Blood group AB
3. Blood group O
4. Blood group A

Given below is the ECG of a normal human. Which one of its components is correctly interpreted below? [figure]

1. Complex QRS - one complete pulse
2. Peak T - initiation of total cardiac contraction
3. Peak P and peak R together - systolic and diastolic blood pressures
4. Peak P - initiation of left atrial contraction only

'Bundle of His' is a part of which one of the following organs in humans?

1. Brain
2. Heart
3. Kidney
4. Pancreas

Which one of the following plasma proteins is involved in the coagulation of blood?

1. Albumin
2. Serum amylase
3. Globulin
4. Fibrinogen

Arteries are best defined as the vessels which

1. supply oxygenated blood to the different organs
2. carry blood away from the heart to different organs
3. break up into capillaries which reunite to form a vein
4. carry blood from one visceral organ to another visceral organ.

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.