Bones
This is the longest bone in the human body.
The femur
This muscle helps you lift your arm and is located at the top of your shoulder.
The deltoid
This organ filters blood and produces urine.
Kidneys
This is the main control center of the nervous system.
Brain
These vessels carry blood away from the heart.
Arteries
This bone protects your brain.
The skull
This muscle is the primary muscle used for breathing.
The diaphragm
This organ is part of the digestive system and is where most nutrients are absorbed.
Small Intestine
This part of the nervous system transmits signals between the brain and the body.
These vessels return blood to the heart.
Veins
These are the bones in your fingers and toes.
Phalanges
8. This muscle in your upper arm is responsible for bending the elbow.
Biceps
This organ pumps blood throughout the body.
Heart
This type of cell transmits electrical signals in the nervous system.
Neuron
This is the main artery that carries oxygen-rich blood from the heart.
Aorta
This bone is also known as the collarbone.
The clavicle
This large muscle at the back of your upper leg helps you stand up from a squat.
Gluteus maximus
This organ is responsible for producing insulin.
Pancreas
This part of the brain controls balance and coordination.
Cerebellum
These small blood vessels exchange nutrients and gases with tissues.
Capillaries
The kneecap is also known by this name.
The patella
This muscle group includes the rectus abdominis, commonly known as the “six-pack.”
Abdominal muscles
This organ helps detoxify chemicals and metabolize drugs.
Liver
This system is responsible for the body’s fight or flight response.
Sympathetic nervous system
This is the blood component that helps clot blood.
Platelets