Body Organs

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The Human Digestion Process (or, What Happens after You Eat Food)

Digestion is the process of changing food into a form that the body can absorb and use as energy or as the raw materials to repair and build new tissue. Digesting food is a two-part process that's half [more…]

The Physiology of the Human Heart

The constant beating of the heart is controlled by the conducting system of the heart, which is a series of specialized nerve tissues that fire through the heart and coordinate the actions of the heart [more…]

Where Is Your Liver and What Does It Do?

The liver is the largest organ in the abdomen, and it sits just under the diaphragm in the right upper quadrant. It’s a busy organ because just about every substance you eat goes to the liver to be metabolized [more…]

The Anatomy of the Gallbladder and Pancreas

As part of the digestive system, the gallbladder and pancreas help you break down food. The gallbladder is a pouch-shaped organ that stores bile produced by the liver. After you eat a meal, a substance [more…]

The Anatomy of the Pelvis

The pelvis holds the reproductive organs, which, of course, vary greatly from males to females. All people have some pelvic organs in common, though, including some of the urinary organs and the rectum [more…]

The Anatomy of the Male Pelvis

The anatomy of the pelvis varies depending on whether you are male or female. The male pelvic organs include the penis and various glands and ducts. The testicles and scrotum are also important male structures [more…]

The Anatomy of the Female Pelvis

The female pelvic organs include the egg-producing ovaries and the uterine tubes that carry the eggs into the uterus for potential fertilization by male sperm. They also include the vagina, which is the [more…]

The Anatomy of the Human Eye

The eyes are housed in the bony orbits that are formed by eight different bones and covered in periorbita. The orbits protect the eyeballs and the structures they need to function. A bit of orbital fat [more…]

The Anatomy of the Nose

The nose is the part of the respiratory tract that sits front and center on your face. You use it to breathe air in and to stop and smell the roses. The nose’s exterior anatomy includes the nasal cavity [more…]

The Anatomy of the External Ear

Your two ears allow you to hear sounds and wear really cool earrings. The external ear includes the auricle as well as the external acoustic meatus, also known as the ear canal, which ends at the tympanic [more…]

The Anatomy of the Middle Ear

The middle ear takes up the space behind the tympanic membrane, inside the temporal bone. The space is called the tympanic cavity, and it has two parts: the tympanic cavity proper directly behind the membrane [more…]

The Anatomy of the Inner Ear

The inner ear houses the vestibulocochlear organ that maintains balance and receives sound from the middle ear. It has two parts: the bony labyrinth and the membranous labyrinth. The bony labyrinth contains [more…]

The Location of the Thyroid and Parathyroid Glands

Several organs are found in the neck. The thyroid gland is located in the anterior portion of the neck, in front of the trachea’s 2nd, 3rd, and 4th C-shaped cartilaginous pieces and below the larynx. It’s [more…]

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