Important Facts about the Human Body CLAT Notes | EduRev

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CLAT : Important Facts about the Human Body CLAT Notes | EduRev

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Important Facts about the Human Body CLAT Notes | EduRev

Sr.
no. 
Length of alimentary canalApproximately 8 meters
1BMR (Basal metabolic rate)1600 K.Cal/day

Number of cells in body75 trillion
2Longest boneFemur (thigh bone)
3Smallest boneEar ossicle, stapes
4Weight of brain1400 gms
5Blood volume6.8 litres (in 70 kg body)
6Normal B.P.120/80 mm Hg
7Number of R.B.C.(a) In male : 4.5-5.0 million/cubic mm


(b) In female : 4.0-4.5 million/cubic mm

8Lifespan of R.B.C.120 days
9Normal W.B.C. count5000-10000/cubic mm
10Life span of W.B.C.3-4 days
11D.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%

12Blood platelets count2,00,000-4,00,000/cubic mm
13Haemoglobin(a)   In male : 14-15.6 gm/100 c.c. of blood


(b)   In female : 11-14 gm/100 c.c. of blood

14Hb content in body500-700 gm
15Universal blood donorO Rh-ve
16Universal blood recipientAB
17Blood clotting time2-5 minutes
18Average body weight70 kg
19Normal body temperature98.4F or 37oC
20Breathing rate16-20/minute
21Dental formulaadult : 2123/2123=32


child : 2120/2120=22 milk teeth

22Number of cranial nerves12 pairs
23Number of spinal nerves31 pairs
24Largest endocrine glandThyroid
25Gestation period9 months (253-266 days)
26Normal heart beat72-75/minute
27Largest glandLiver
28Largest muscle in the bodyGluteus maximus (Buttock muscle)
29Largest smooth muscleUterus of pregnant woman
30Smallest muscle in the bodyStapedius
31Largest arteryAbdominal aorta
32Largest veinInferior venacava
33Largest W.B.C.Monocyte
34Smallest W.B.C.Lymphocyte
35Greatest regeneration powerIn fiver
36Longest nerveSciatica
37Longest cellNeuron (nerve cell)
38Menstrual cycle28 days
39Menopause age45-50 years
40Minimum regeneration powerIn brain cells
41Minimum distance for proper vision25 cm
42Type of placentaHaemochorial (Chorioallantoic)
43Pulse rate72/minute
44Volume of semen2-4ml/ejaculation
45Normal sperm count200-350 million/ejaculation
46ESR (normal Erythrocyte sedimentation rate)4.10 min/hour
47Thinnest skinConjunctiva
48pH of gastric juice1.4
49pH of urine6.0
50pH of blood7.35-7.45
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