Getting Nervous
The nervous system is divided into these two sections
central and peripheral
This consists of the cerebellum, cerebrum, diencephalon and brainstem.
brain
This conducts impulses from the eye to the brain.
optic nerve
This is the cartilaginous part of the outer ear.
pina
This is the most common type of dementia and usually impacts people over 65 years old.
Alzheimer's disease
The peripheral nervous system has these two divisions.
sensory and motor
This connects the spinal cord to the brain.
brainstem
This structure contains rods, cones and the chemical that converts light into electrical impulses.
retina
This portion of the ear consists of three small bones.
Ear drum
This is a viral or bacterial infection of the cerebrospinal fluid.
meningitis
These thin membrane layers surround and protect the brain and spinal cord.
meninges
This provides a protective cushion, allowing the brain to float in the cranial cavity.
cerebrospinal fluid
This is the opening in the front of the eye.
pupil
This is the portion of the ear where hearing occurs.
cochlea
This disorder causes individuals to see clearly up close but blurry at a distance.
Myopia
This is the space where neurons transmit impulses between cells.
synapse
This brain structure helps regulate endocrine functions.
hypothalamus
This is the colored portion of the eye.
iris
This structure connects the pharynx to the middle ear.
eustachian tube
This common disorder is characterized by seizures and can usually be controlled with medication.
epilepsy
These are made up of a cell body, dendrites and axons.
neurons
This is the largest structure of the brain. It is involved with taste, smell, vision, language, learning, voluntary movement and mood.
These cells are responsible for sensing color.
cones (or cone cells)
This is the inability to hear.
deafness
This is a clouding of the lens of the eye that naturally occurs with aging.
cataract(s)