Brain
Connects cerebral hemispheres
Allows communication between the left and right sides of the brain
What is the corpus callosum?
Reflex actions
What is the gray matter?
Order of meninges from superficial to deep.
What is the dura mater, arachnoid mater, and pia mater?
Also known as the auricle
What is the pinna?
Functions as a screen upon which images are projected by the cornea and lens
What is the retina?
Coordinates head and eye movements when we visually follow an object
Acts as an auditory relay and in reflexive responses to sound (startle reflex)
Coordinates limb flexion
What is the midbrain?
Distribute outgoing efferent (motor) impulses
What is the anterior/ventral horn?
Central hollow cavities that lie deep within the brain and contain CSF.
What are ventricles?
The part of the ear that the Eustachian tube is located.
What is the middle ear?
Tough, white outer layer of the eyeball
What is the sclera?
Gray matter that covers outer portion of cerebrum
What is the cerebral cortex?
Carrying information to and from the brain (ascending and descending tracts)
What is white matter?
Protection and shock absorber
Reduces weight of brain
Circulates nutrients from blood
Carries chemical signals from one part of the brain to another
Removes wastes
What is CSF?
Two membranes that transmit sound waves.
What is the tympanic membrane and the oval window?
Space between lens and retina; filled with a gel-like substance that maintains the shape of the eyeball
What is the vitreous body, humor, chamber?
Relay sensory information on the degree of stretch in muscles and joints to cerebellum
Cardiovascular center (cardiac center and vasomotor center)
Respiratory center
Regulate vomiting, hiccuping, swallowing, coughing, and sneezing
What is the medulla oblongata?
Filled with CSF
What is the central canal or subarachnoid space?
Protective mechanism that helps maintain brain’s stable environment
What is the blood brain barrier?
Superficial to deep order of the ossicles.
What is the malleus, incus, and stapes?
Irregular curvature of the cornea
What is astigmatism?
Regulate food intake
Regulate water balance and thirst
What is the hypothalamus?
Receives afferent (sensory) signals
What is the posterior/dorsal horn?
Contains largest blood vessels serving brain
What is the arachnoid mater?
Structures in the cochlea that transform sound waves into electrical impulses.
What are the hair cells?
Rise in pressure of aqueous humor in the anterior chamber; damage to optic nerve
What is glaucoma?