The Eye
The posterior chamber of the eye is filled with what?
Vitreous fluid/ Vitreous humor
The 3 small bones (auditory ossicles) of the middle ear are the malleus, stapes, and ____.
Incus
What is the name of the posterior lobe of the cerebrum?
occipital
What serves as a shock absorber and provides nutrients for the central nervous system?
cerebrospinal fluid
CSF
The 3 types of cranial nerves are sensory, motor, and ___.
Mixed
The ____ is the innermost layer of the eye and contains photosensitive cells.
retina
Another term for earwax
cerumen
What are the 4 main parts of the brain?
Brainstem
Diencephalon
Cerebrum
Cerebellum
Which division of the autonomic nervous system controls the fight-or-flight reaction?
sympathetic
The hypoglossal nerve controls the movement of:
the tongue
What structure regulates the amount of light that enters the pupil?
Iris
The external portion of the ear that allows sound waves to enter the ear canal and directs it to the tympanic membrane:
auricle
What are the 3 layers of the wall of the brain (meninges)?
Dura mater
Arachnoid mater
Pia mater
Which of the 4 main parts of the brain maintains posture and balance, and coordinates complex muscular movements?
cerebellum
What is the name of cranial nerve I?
olfactory
What is the outermost layer of the eye? Known as the "white of the eye".
sclera
The structure of the ear that equalizes pressure between the middle ear and outside air.
eustachian tube
What are the 3 parts of the brainstem?
midbrain
medulla oblongata
pons
What gland secretes melatonin?
pineal gland
The abducens nerve controls movement of the:
eyeball
What is the difference between rods and cones?
Rods: dim-light vision
Cones: color vision, require lots of light
Both found in the retina
What are the 2 structures of the inner ear that function in the maintenance of balance (equilibrium)?
vestibule: static
semicircular canals: kinetic
The folds on the surface of the cerebral hemispheres is called:
gyri
Which area of the brain contains all the ascending and descending tract that connect the spinal cord and various parts of the brain?
medulla oblongata
Which nerve is responsible for hearing and balance?
vestibulocochlear