Ques. 1 What are is Leucocytes?
Ans. The Leucocyte or white blood corpuscles are one of the cellular elements of blood which are nucleated and serve mainly the defensive function of the body.
Ques. 2 What are the varieties of leucocytes?
Ans. Leucocytes are of two types broadly known as granulocytes and agranulocytes.
a) Agranulocytes, i.e. which not contain any granules in their cytoplasm, they are – (i) Lymphocyte, and (ii) Monocyte.
b) Granulocytes, i.e. the presence of granules in the cytoplasm, they are – (i) Neutrophil, (ii) Eosinophil, and (iii) Basophil.
You must also Read: FAQs on Ayurveda FAQs on Root Canal Therapy CAUSES OF ABORTION DURING EARLY PREGNANCY
Ans. Eosinophil cells : It is a granular leucocyte having a nucleus with 2 lobes connected by a thread of chromatin and cytoplasm containing, round granules of uniform size, reddish in colour. Size 10 to 12 in diameter. Normal percentage 1 to 4% Absolute No. 150 to 400 per cu. mm.
Ques. 4 What are Basophil cells?
Ans. Basophil cells or Mast cells : It is a granular leucocyte with an irregularly shaped, relatively pale-staining nucleus that is partially constricted into 2 lobes, and with cytoplasm containing course (bluish black granules of variable size). Size 8 to 10 Normal percentage within 1% Absolute number 0 to 100 per cu(3) Amoeboid movement is present. (4) Several varieties of leucocytes are present.
Ques. 12 What are the variations of R.B.C. Count under physiological conditions?
Ans. Diurnal variation : maximum in the evening and lowest during sleep. (ii) Count rises: during the muscular exercise, at higher altitude, due to high external temperature, when O2 tension is low, when CO2 tension is high, when adrenal is ejected etc. (iii) Count falls : at lower altitude.
Ques. 13 What are the average ratio of total W.B.C. count with the total R.B.C. count?
Ans. It is about 1 : 700, i.e. for 1 WBC there are 700 RBC.
Ques. 14 What is Red Blood Corpuscle?
Ans. It is a red, non-nucleated and perfectly elastic, biconcave disc. It envelope consists of proteins & lipoids (cephalin, lecithin and cholesterol), and is responsible for its characteristic permeability. The envelope encloses a solution of haemoglobin and various electrolytes, e.g. K, Mg, Ca, and P.
|Below Articles may be helpful to you:|
|FAQs on DIARRHEA|
|FAQs on ASTHMA|
|FAQs on HEPATITIS|