44 Important Facts Realted To Human Body |Gk Rlearn

Some Important Facts Related To Human Body |rlearn education

1) Largest and strongest bone in the body: Femur (thigh bone)

2) Smallest bone in the body: Stapes in ear

3) Number of cells in the body: 75 trillion

4)Volume of blood in the body: 6 litres (in 70 kg body)

5)Number of red blood cells (R.B.C.): In male: 5 to 6 million/cubic mm; In female: 4 to 5 million/cubic mm

6)Life span of red blood cells (R.B.C.): 100 to 120 days

7)Life span of white blood cell (W.B.C.): 3–4 days

8)Normal white blood cell (W.B.C.) count: 5000–10000/cubic mm

9)Time taken by R.B.C. to complete one cycle of circulation: 20 seconds

10)Other name of red blood cell (R.B.C.): Erythrocytes

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11)Largest white blood cells: Monocytes

12)Smallest white blood cells:

13)Who discovered blood group: Karl Landsteiner

14)Blood platelets count:
150,000-400,000 platelets per micro litre

15)Haemoglobin (Hb): In male: 14-15 gm/100 c.c. of blood; In female: 11-14 gm/100 c.c. of blood

16)Hb content in body: 500-700 gm

17)pH of urine: 6.5-8

18)pH of blood: 7.36-7.41

19)Volume of semen: 2-5 ml/ejaculation

20)Normal sperm count: 250—400 million/ejaculation

21)Menstrual cycle: 28 days

22)Menopause age: 45-50 years

23)Blood clotting time: 3-5 minutes

24)Weight of brain: 1300-1400 gm in human adult

25)Normal blood pressure (B.P.): 120/80 mm Hg

26)Universal blood donor: 0

27)Universal blood recipient: AB

28)Average body weight: 70 kg

29)Normal body temperature: 37 degree celsius

30)Breathing Rate at rest: 12–16/minute

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31)Number of spinal nerves: 31 pairs

32)Largest endocrine gland: Thyroid gland

33)Gestation period: 40 weeks or 9 calendar months

34)Normal heart beat at rest: 72 beats per minute

35)Largest gland: Liver

36)Largest muscle in the body: Gluteus Maximus or Buttock Muscle
Smallest muscle in the body: Stapedius

37)Largest artery: Aorta

38)Largest vein: Inferior Vena Cava

39)Largest and longest nerve: Sciatic Nerve

40)Longest cell: Neurons (nerve cells)

41)Minimum distance for proper vision: 25 cm

42)Pulse rate: 72 per minute

43)Thinnest skin: Eyelids

44)Weight of heart: 200-300 gm

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