|
1.
Busiest organ
|
Heart
|
|
2.
Fastest known
enzyme
|
Carbonic anhydrase
|
|
3.
Hardest part of
the body
|
Enamel of tooth
|
|
4.
Heaviest organ
|
Liver (1.6 kilograms)
|
|
5.
Heaviest part
of the body
|
Skull
|
|
6.
Largest
(bulkiest) muscle of human body
|
Gluteus maximus (Buttock muscle)
|
|
7.
Largest blood
cell
|
Monocyte
|
|
8.
Largest blood
vessel (Artery)
|
Aorta (abdominal aorta)
|
|
9.
Largest bone of
man
|
Femur bone
|
|
10.
Largest cell
|
Egg of Ostrich (15- 20 cm in diameter)
|
|
11.
Largest cell in
human body
|
Ovum (egg)
|
|
12.
Largest cell
organelle
|
Nucleus
|
|
13.
Largest
endocrine gland
|
Thyroid gland
|
|
14.
Largest enzyme
|
Catalase
|
|
15.
Largest
excretory organ
|
Kidney
|
|
16.
Largest gland
|
Liver (1.5 kg)
|
|
17.
Largest nerve
|
10th cranial nerve (Vagus)
|
|
18.
Largest organ
|
Skin (4 kg; 24 cubic feet)
|
|
19.
Largest
salivary gland
|
Parotid gland
|
|
20.
Largest sense
organ
|
Skin
|
|
21.
Largest vein
|
Inferior vena cava
|
|
22.
Largest WBC
|
Monocyte
|
|
23.
Longest cell
|
Neuron (Nerve cell)
|
|
24.
Longest muscle
|
Sartorius (Thigh muscle)
|
|
25.
Longest nerve
|
Sciatic
|
|
26.
Longest part of
the alimentary canal
|
Small intestine (7m)
|
|
27.
Most abundant
compound in a cell
|
Water (Next to water protein)
|
|
28.
Most abundant
mineral in vertebrate body
|
Ca (2%); followed by P (1%)
|
|
29.
Most flexible
organ
|
Skin
|
|
30.
Part having
least amount of water
|
Enamel of tooth
|
|
31.
Part having
much amount of water
|
Blood
|
|
32.
Part having
thickest skin
|
Sole of the foot (about 4.7 mm)
|
|
33.
Part having
thinnest skin
|
Face (0.12 mm)
|
|
34.
Second largest
gland
|
Pancreas
|
|
35.
Smallest artery
|
Phrenics (To diaphragm)
|
|
36.
Smallest blood
vessels
|
Blood capillaries
|
|
37.
Smallest bone
|
Stapes of ear
|
|
38.
Smallest cell
|
Mycoplasma
gallisepticum (PPLO)
|
|
39.
Smallest cell
of the vertebrate body
|
Squamous epithelial cells
|
|
40.
Smallest cell
organelle
|
Ribosome (Found in maximum number)
|
|
41.
Smallest
endocrine gland
|
Pituitary
|
|
42.
Smallest enzyme
|
Peroxidase
|
|
43.
Smallest face
bone
|
Lachrymal bone
|
|
44.
Smallest muscle
|
Stapedius (near stapes)
|
|
45.
Smallest nerve
|
Pathetic trochlear nerve (4th cranial
nerve)
|
|
46.
Smallest
salivary gland
|
Sublingual gland
|
|
47.
Smallest WBC
|
Lymphocyte
|
|
48.
Strongest bone
|
Femur bone (not jaw bone)
|
|
49.
Sweetest
protein
|
Monellin
|
|
50.
Sweetest sugar
|
Fructose
|
|
51.
Thinnest skin
|
Conjunctiva
|
|
52.
Hardest working
muscle
|
Heart muscles
|
|
53.
Strongest muscle
based on its weight
|
Masseter (Jaw muscles), somebody says it is Uterus
|
|
54.
Muscle that can
pull with the greatest force
|
Soleus
|