GENERAL HISTOLOGY

INTEGUMENTERY SYSTEM

INTEGUMENTERY SYSTEM MISCELLENOUS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A single square inch of your skin contains how many cells?
A
19 million
B
19 thousand
C
19
D
19 billion
Explanation: 

Detailed explanation-1: -One inch of your skin has approximately 19 million skin cells and 60, 000 melanocytes (cells that make melanin or skin pigment). It also contains 1, 000 nerve endings and 20 blood vessels.

Detailed explanation-2: -The skin is composed of approximately 300 million skin cells. Every half square inch of the human skin has approximately 100 sweat glands, 10 hairs, 15 sebaceous glands, and 3.2 feet of tiny blood vessels. A large percentage of the dust in your home is actually dead skin.

Detailed explanation-3: -An average adult’s skin of approximately 2, 800 square inches is under pressure of 14.7 psi-which makes a total of 41, 160 lbs of force.

Detailed explanation-4: -Here’s a disgusting fact for you-every hour, you’ll shed around 0.085 grams of dead skin, or roughly 500 million skin cells. That might not sound like much, but add that up over a lifetime, and you’re looking at 35 kg (77 pounds) of discarded flesh, which is around half the entire body weight of an average human.

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