Facts About Human Body

                           Facts About Human Body

1.Length of alimentary canal--Approximately 8 meters

2.BMR (Basal metabolic rate)--1600 K.cal/day

3.Number calls in body--75 trillion

4.Longest bone--Femur (thigh bone)

5.Smallest bone--Ear ossicle, stapes

6.Weight of brain--1400 gms

7.Blood volume--6.8 litres (in 70 kg body)

8.Normal B.P--120/80 mm Hg

9.Number of R.B.C--(a) In male: 4.5-5.0 million/cubic mm
                                (b) In female: 4.0-4.5 million/cubic mm

10.Life span of R.B.C--120 days

11.Normal W.B.C count--5000-10000/cubic mm

12.Life span of W.B.C--3-4 days

13.D.L.C (Differential leucocyte count)
                (a) Basophils-0.5-1%
                (b) Eosinophils-1-3%
                (c) Monocytes-3-8%
                (d) Neutrophils-40-70%
                (e) Lymphocytes-2-25%

14.Blood platelets count--2,00,000-4,00,000/cubic mm

15.Haemoglobin--(a) In male: 14-15.6 gm/100 c.c of blood
                            (b) In female: 11-14 gm/100 c.c of blood

16.Hb content in body--500-700 gm

17.Universal blood donor--O Rh-ve

18.Universal blood recipient--AB

19.Blood clotting time--2-5 minutes

20.Average body weight--70 kg

21.Normal body temperature--98.4.F or 37.C

22.Breathing rate--16-20 minutes

23.Dental formula--adult:2123/2123=32
                              child: 2120/2120=22 milk teeth

24.Number of cranial nerves--12 pairs

25.Number of spinal nerves--31 pairs

26.Largest endocrine gland--Thyroid

27.Gestation period--9 months (253-266 days)

28.Normal heart beat--72-75/ minutes

29.Largest gland--Liver

30.Largest muscles in the body--Gluteus maximus (Buttock muscle)

31.Largest smooth muscle--Uterus of pregnant women

32.Smallest muscles in the body--Stapedius

33.Largest artery--Abdominal aorta

34.Largest vein--Inferior venacava

35.Largest W.B.C--Monocyte

36.Smallest W.B.C--Lymphocyte

37.Greatest regeneration power--In liver

38.Longest nerve--Sciatic

39.Longest cell--Neuron (nerve cell)

40.Menstrual cycle--28 days

41.Menopause age--45-50 years

42.Minimum regeneration power--In brain cell

43.Minimum distance for proper vision--25 cm

44.Type of placenta--Haemochorial (Chorioallantoic)

45.Pulse rate--72/minute

46.Volume of semen--2-4 ml/ejaculation

47.Normal sperm count--200-350 million/ejaculation

48.ESR (normal Erythrocyte sedimentation rate)--4.10 min/hour

49.Thinnest skin--Conjunctiva

50.pH of gastric juice--1.4

51.pH of urine--6.0

52.pH of blood--