There are many, many different words used to describe the parts of the human body. Some of these parts are visible, so you can see them easily. Other parts are inside of your body and cannot easily be seen.
Some of the words used to describe the body are common words that little children learn. Others are unusual words that are not known by everyone, but are known by people who work in medical jobs. This lesson includes the most common parts of the body that you will need to know.
This lesson is part of the English Vocabulary Illustrated Word Lists section. Let's get started!
Some parts of the body are easily visible. These are the parts of the body that you can see without special equipment or without cutting open the body.
The foot is the part of the body that is closest to the ground. It is below the ankle. It is the part that you stand on. The foot has the following parts:
The ankle is the part of the body where the foot and the leg connects.
The leg connects the feet to the rest of the body; humans have two legs. They are long and thin. The parts of the leg are:
The genitals are the sexual organs that are outside of the body.
The hips are the parts of the body that go from the waist down to the top of the leg on the sides of the body.
The buttocks are located above the legs on the back of the body. They are round and soft. You sit on your buttocks. Another, more casual, term for "buttocks" is "butt."
The abdomen is located on the front of the body. It is above the genitals and below the chest.
The chest is the part of the body that is on the front, between the abdomen and the neck.
The shoulder is the part of the body where the arm attaches to the main part of the body.
The underside of the area where the arm attaches to the shoulder is called the armpit.
The arm is the part of the body that is long and skinny and extends from each shoulder. The parts of the arm include:
The part of the body that is on the back and extends from the buttocks to the neck is called the back.
The part of the body that connects the head to the shoulders is called the neck.
The part of the body that is above the neck is called the head.
The part of the body with the eyes, nose, and mouth is called the face.
The part of the body at the bottom front of the head is called the jaw.
The bottom center of the face is called the chin.
The parts of the head that stick out on each side and are used to hear are called the ears.
The parts of the face beneath the eyes are called the cheeks.
The hard area of the cheek is called the cheekbone.
The part of the face that opens to let air out and food in is called the mouth.
The hard, white surfaces inside the mouth are the teeth. They are used to chew food and to speak.
The pink part of the inside of the mouth that moves and is used for speaking and tasting is called the tongue.
The part of the face with two holes to let air in and out is called the nose.
The holes at the bottom of the nose are called the nostrils.
The two things that you use to see with are called your eyes. The parts of the eye include:
The skin covering the eye that moves up and down is called the eyelid.
The eyelashes are the hairs that connect to the top and the bottom of the eye. They keep dirt out of the eyes.
The hair located above the eyes is called the eyebrow.
The part of the face that is above the eyes is called the forehead.
In order for the body to work properly, blood has to move around the body. This movement is called circulation. The system that makes it possible for blood to move around the body is called the circulatory system. The parts of the circulatory system include:
The heart is a muscle in the chest. It is a pump. It pumps blood around the body. The heart has four chambers.
The tubes that move blood around the body are called blood vessels. There are two main kinds of blood vessels:
Blood is the liquid that flows through the circulatory system. The main components of blood are:
You cannot remain alive if you do not get oxygen into your body. And you cannot stay alive if you cannot get carbon dioxide out of your cells. The job of the respiratory system is to get air into the small parts of the body called cells and to take away the carbon dioxide.
The respiratory system works with the circulatory system to make this possible. The respiratory system includes the nose and mouth since we use the nose and/or the mouth to get air into the body. The main parts of the respiratory system are:
The throat is a tube that lets air move from the nose and mouth down to the lungs.
The lungs are two organs in the chest. They are used to make it possible to breathe. There are muscles around the lungs that push them inward and outward. This forces air into and out of the lungs. From the lungs, air enters and exits from the blood vessels.
You can survive a few days, maybe even a few weeks without eating, but your body functions best when it gets enough food. It is the digestive system that processes the food in order for your body to be able to use it.
The digestive system begins in the mouth. Food is placed in the mouth and then the tongue, teeth, and saliva begin to break the food down. The main parts of the digestive system include:
The salivary glands produce liquid in the mouth. This liquid mixes with the food and turns it into a paste so that you can swallow it. It also begins to break down the food.
The esophagus is a tube that runs from the mouth to the stomach. Food goes down this tube.
The stomach is a pouch that stores food and starts to break it down. It also kills bacteria in the food so that you will not get sick.
The small intestine is a long tube that is not very wide. As food travels through it, nutrients in the food are absorbed through the walls of the small intestine so they can go to the rest of the body.
The large intestine is a tube that is wider than the small intestines but not as long. Food travels through the large intestine. As it travels, water and vitamins are absorbed through its walls so they can go to the rest of the body.
The liver is an organ that cleans the blood of toxic substances.
The gallbladder is attached to the liver. It stores bile.
The pancreas produces a liquid. This liquid helps food be digested.
The anus is the opening of the digestive system to the outside of the body in the buttocks. After food has been processed in the digestive system, waste products are removed from the body through the anus.
Your cells produce waste products. If these waste products are not removed from your body, you would get very sick. Plus, there are some parts of foods that you eat that your body cannot use. These are also waste products that have to be removed.
It is the job of the excretory system to remove all of these waste products from the body. We have already talked about the lungs, large intestines and anus; they are part of the excretory system. The other main parts of the excretory system are:
There are two kidneys. They are located in the abdomen. They filter blood and urine.
The bladder is a sack in the abdomen that holds urine until it is removed from the body.
The urethra is a tube that moves urine out of the body.
The job of the nervous system is to carry electrical messages throughout your body. If you feel pain, or if something feels cold, it is because the nervous system sent a signal to your brain to give you that information.
The brain is a large organ. It is located inside the head. It controls thoughts, movements, and memories.
The spine is the group of bones that connects down the back. The spinal cord is a group of nerves inside the spine that sends messages to and from the brain.
A nerve is a long, thin thread that carries a message from one part of the body to the brain, or from the brain to another part of the body.
The endocrine system is responsible for hormones in the body. Hormones are chemicals that cause growth or some other action in a part of the body. The job of the endocrine system is to keep hormones at the right levels so that the body can be healthy.
A hormone is a chemical that the body releases. The hormone causes something to happen in the body.
The pineal gland is located in the brain. It releases hormones.
The hypothalamus is located in the brain. Its job is to control the body's temperature, release hormones, and regulate hunger.
The pituitary gland is located in the brain. It releases hormones. The hormones that it releases are responsible for the growth of the body.
The thyroid is located in the neck at the front. It releases hormones; these hormones control various functions in the body.
The thymus is located in the neck. Its job is to help the body fight infection.
The pancreas can also be considered part of the digestive system. It is located in the abdomen. It releases a liquid that helps the body digest food.
The adrenal glands are found above the kidneys. They produce hormones.
The ovaries are the part of a woman's body that produce eggs. They also regulate hormone levels.
The testes are the part of the male body that produce sperm and regulate hormone levels.
The skeletal system is made of all of the bones of the human body. Without bones, it would be impossible to do anything. And if you have ever broken a bone, you know that it makes it difficult to do normal activities when even one bone cannot be used.
The teeth are part of the skeletal system, even though most people do not think of them as bones, but they are. A person normally has 206 bones. These are the main parts of the skeletal system:
The skull is composed of the bones that form the head.
The ribs are the bones that surround the back and chest.
The bone in the upper arm is called the humerus.
Radius and Ulna
The lower part of the arm has two bones: these are the radius and the ulna.
The spine is formed from a series of small bones that go from the buttocks to the head.
The large bone that extends from the knee upward is called the femur.
Tibia and Fibula
The lower leg is composed of two bones: the tibia and fibula.
Without muscles, the bones would not be able to move. Muscles usually work in pairs so that a bone can move in two directions. There are about 700 muscles in the human body. A few of the most commonly mentioned muscles are:
A muscle is a piece of tissue that the brain can command to relax or contract in order to move part of the body.
The bicep is the main muscle which is found on the arm on the front.
The tricep is located on the arm, on the top part in the back.
The deltoids are the muscles that cover the shoulders.
The muscles that cover the abdomen are called the abdominals.