• Back – The human back is the large posterior area of the human body, rising from the top of the buttocks to the back of the neck and the shoulders. It is the surface of the body opposite from the chest. The vertebral column runs … See more

• Ear – is the organ of hearing and, in mammals, balance. In mammals, the ear is usually described as having three parts—the outer ear, the middle ear and the inner ear. … See more

• Gallbladder – In vertebrates, the gallbladder is a small hollow organ where bile is stored and concentrated before it is released into the small intestine. In humans, the pear … See more

• Calcium – Calcium ions (Ca ) contribute to the physiology and biochemistry of organisms and the cell. They play an important role in signal transduction pathways, where … See more

• Decompression sickness – is a condition caused by inert gas bubbles forming in supersaturated tissues after a reduction in ambient pressure, … See more

• Face – is the front of an animal's head that features three of the head's sense organs, the eyes, nose, and mouth, and through which … See more

• Hand – A hand is a prehensile, multi-fingered appendage located at the end of the forearm or forelimb of primates. The human hand … See more