The human brain is about % water
The average human heart beats about, times per day
The human stomach can hold about . liters of food
The average human skin cell lives for about days
The Adult skeleton is made up of about bones
There are about 600 muscles in the human body
Humans have 2–4 million eccrine sweat glands in total. They are found on both glabrous (palms, soles) and non-glabrous (hairy) skin.
Many different types of tissue make up the body, each with a specialized function. Histology, the study of tissues, often occurs with a microscope.
The gallbladder is a pear-shaped organ located below the liver. The shape and size of it are variable.
The smallest bone in the human body is the stapes which is in the ear.