progressive mental deterioration that can occur in middle or old age, due to generalized degeneration of the brain.

System that circulates blood and lymph through the body.

the part of the brain at the back of the skull in vertebrates. Its function is to coordinate and regulate muscular activity.

the colored part of the eye.

the part of the intestine that runs between the stomach and the large intestine.

is a rare genetic disease that causes difficulty walking, a loss of sensation in the arms and legs, and impaired speech.

System that protects the body from foreign substances, cells, and tissues using an immune response.

the principal and most anterior part of the brain in vertebrates, located in the front area of the skull and consisting of two hemispheres, left and right, separated by a fissure.

the dark circle inside the center of the eye.

is to absorb water from the remaining indigestible food matter and transmit the useless waste material from the body.

a progressive degeneration of the motor neurons of the central nervous system, leading to wasting of the muscles and paralysis.

System consisting of skeletal, smooth, and cardiac, muscles.

is one of the most basic regions of the human brain, yet it is one of the most vital regions for our body’s survival.

clear covering over the pupil and iris.

secretes bile that ends up back in the intestines.

is a condition in which the ability to control muscles is reduced due to nervous system damage before, during or after birth.

System of nerve cells and fibers that transmit nerve impulses throughout body.

A pea-sized body attached to the base of the brain, is important in controlling growth and development and the functioning of the other endocrine glands.

the white part of the eye that becomes pink or red.

its primary function is to store and concentrate bile, a yellow-brown digestive enzyme produced by the liver.

is a disorder of the nervous system. It results from damage to the nerve cells in a region of the brain that produces dopamine, a chemical that is vital for the smooth control of muscles and movement.

System of organs that allows a connective tissue that is the framework of the body.

each of the paired lobes of the brain lying immediately including areas concerned with behavior, learning, personality, and voluntary movement.

the inner layer of skin on the eyelid.

it is part of the digestive system and produces insulin and other important enzymes and hormones that help break down foods.