Human Body

Lungs are a very important part of the respiratory system. They are what allow us to breath. They take in oxygen and send it throughout the body while expelling carbon dioxide

The Nose and Mouth take in oxygen which are then transported to the lungs. When the lungs take in the oxygen they release carbon dioxide. The carbon dioxide leaves the body through the nose or mouth

The sinuses are hollow spaces in the skull that help regulate temperature and humidity of the air we breathe in

The trachea is a large tube down the throat that deliver oxygen from the upper respiratory tract to the bronchi

The Bronchial tubes are two tubes that take air from the trachea to the lobes of each lung. The right Bronchi Tube takes air to the right lung lobe while the left bronchi tube takes air to the left lung lobe

Lobes have a rather simple function. They are responsible for bringing oxygen into the bloodstream and getting rid of carbon dioxide.

Alveoli are and important part of the respiratory system. They are in charge of exchanging oxygen and carbon dioxide molecules to and from the bloodstream. They lie in clusters around the lungs.

These blood vessels bring
oxygen and nutrients to
tissue and remove waste products

White Blood Cells

Bone marrow is found in the bones. Bone marrow is what produces our red blood cells that carry oxygen and white blood cells that fight infections among other things

Antibodies produced by lymphocytes help the body fight off microbes or the poison/toxin they release. They do this by first recognizing substances produced on the microbe or in the gas they produce. These are called antigens. They then mark the cells for destruction getting rid of the infection

The complement system is a system made of of proteins. These proteins assist the antibodies in mighting microbes and infections.

The lymphatic system is a network of delicate tubes through the body that control certain aspects. They manage the fluid levels in the body, react to bacteria, deal with cancer cells, deal with cell products that otherwise would result in disease or disorders, absorb some of the fats in our diet from the intestine among other things

The spleen is an organ that filter blood. It removes microbes and destroys old or damaged red blood cells. It also makes antibodies and lymphocytes

The thymus filters and monitors blood content removing things that could be harmful. It also produces some white blood cells

The Hypothalamus is responsible for many of the bodies primary functions. This includes hunger, body temperature, moods and the release of other hormones through the body. It is small and located in center of the brain between the pituitary gland and thalamus.

Considered the "Master Control Gland" this gland is what controls other glands. It is also the gland that triggers growth hormones. It sends hormones through your blood stream that effect other glands and organs. Especially the thyroid

The Parathyroid Gland is 4 glands in the neck that control calcium levels. They weight 30 milligrams and are 30 to 40 millimeters in diameter. When this malfunctions it causes too much calcium to be produced weakening bones and producing kidney stones

The pancreas produces insulin and glucagon that helps control blood sugar levels.

The Thyroid Gland releases hormones that control calorie burning and heart rate. It helps Brain development as well as make sure your bones are working and strong. It helps with the digestion of food as well as different muscles throughout the body

The Pineal Gland is a small gland in the brain. It produces a hormone called melatonin, which is a hormone that regulates biological rhythms like sleep and wake cycles

The bladder is what holds the urine. As the urine comes from the kidneys it is stored and released controlled and infrequently from the bladder.

The kidneys are what produces the urine. The kidneys take waste and water from the blood which it then turns into urine.

The Ureters are two tubes that take the urine produced in the kidney to the bladder

The male urethra connects the urinary bladder to the penis. Once the bladder becomes full, urine flows through the urethra and leaves the body

Skeletal Muscles help us maintain posture. They stabilize bones and joints and help us with internal movement. They also generate heat

Cardiac muscle is a muscle found only in the heart. It is the muscle that keeps our heart pumping and blood flowing through our heart. It responds to electric signals sent from the nervous system

Smooth muscles are lined against the walls of hollow organs like out intestine. They work without us noticing them to digest food

Bones are what give the body its shape and posture. Without bones we have o support whatsoever and would not be able to do anything. Bones protect all the organs in the body. Like the brain for example, is a organ that is incredibly delicate. So we the skull to protect it. They also give give us movement. Though they arent the part of the skeletal system that lets us moves they help move our arms.

Joints are what allow us to move. They are where two bones meet and they provide flexibility for the skeleton. Without joints we would not be able to move at all.

Cartilage is a connective tissue which bends a bit but not stretches. It is a connective tissue that connects bones. It is also found in the joints, the rib cage, the ear, the nose, the throat and between the bones of the back

The pulmonary circulation is somewhat of a loop going through the lungs. This is where blood is oxygenated before going through the rest of the body.

The systemic circulation is a loop through the rest of the body. This loop provides oxygen to the blood as it travels to different parts of the body.

Arteries are strong blood vessels that take blood from the heart which has recieved oxygen and nutrients and take it to different blood vessels.

Veins are responsible for returning deoxygenated blood back to the heart after arteries take blood out. Veins have much thinner walls compared to arteries which is why we can see them through our skin

Coronary vessels supply the heart with blood. they supply the heart with oxygenated blood.

This is a vein that carries blood from the gastrointestinal tract, gallbladder, spleen and pancrease to the liver.

The epidermis is the outermost layer of the skin. It provides a barrier preventing infections from getting in the body. It also regulates how much water is released from the body.

The Hypodermis acts as a layer of insulation for the body. It also cushions parts under the skin

Hairs protect us from certain infections as well as helping us regulate body temperature. They also act as sense organs.

Nails protect the tips of fingers and toes from mechanical injury. Fingernails give the fingers greater ability to pick up small object

The Gi tract is a long tube that starts at the mouth and ends at the anus. The Gi tract is aligned with specific muscles that coordinate the movement of the food. There are also different cells that produce enzymes that help further break down the food.

The pancreas produces insulin and other important enzymes and hormones that help break down food. The pancreas has an endorcine function as it releases juices directly into the blood stream.

The liver has does many things in the digestive system. It creates and bile then give it to the small intestine helping to break down fats. It expels hormones, cholesterol and drugs. Metabolism fats, carbohydrates and protein. Stores witamins and minerals among other thigs.

The mouth is what starts off the digestion track. The mouth takes food and chews it up until the food is small and soft enough to go down the esophagus smoothly

The Esophagus is the passage for food from your mouth to your stomach. The esophagus uses a series of muscles to move food down the body.

The stomach produces enzymes and acids that digest food. The walls of the stomach are aligned with ridges of muscle tissue called rugae. The rugae move in certain ways that crunches up food and helping the process of digestion

The Large Intestine is the final stop before the rectum and anus. undigested food enters the large intestine from the small intestine. it then soaks up the water from digestion and eliminates undigested food and fibers. This causes waste to harden and form faeces

90% of digestion occurs in the small intestine. The small intestine is responsible for absorbing nutrients recieved from food. The small intestine uses enzymes from the pancreas to digest food.

The rectum is what holds waste products after the colon. The waste then sits there until it is ready to be disposed of