Nerve fibers from the medial aspect of each eye
cross over to the opposite side at the chiasma
U.S. employees must wear hearing protection at
The oil component found in tears is produced by the
The receptor membranes of gustatory cells
Light passes through the following structures in which order
cornea, aqueous humor, lens, vitreous humor
Which statement about malnutrition-induced night blindness is most accurate?
Vitamin supplements will reverse degenerative changes.
During dark adaptation
rhodopsin accumulates in the rods
Olfactory glands function to
Which of the following is not a possible cause of conduction deafness
cochlear nerve degeneration
Which pairing of terms is incorrectly related
The blind spot of the eye is
where the optic nerve leaves the eye
Taste buds are not found
in filiform papillae
Which of the following is not a characteristic of olfactory receptor cells
They are unipolar neurons
The eye muscle that elevates and turns the eye laterally is the
There are three layers of neurons in the retina. The axons of which of these neuron layers form the optic nerves?
What is the main function of the rods in the eye?
vision in dim light
Farsightedness is more properly called
Factors that inhibit TSH release do not include
Which organ is responsible for synthesizing ANP
the heart <3
The only amine hormone to act like a steroid is
Insulin, a small (51-amino-acid) protein, is synthesized by the beta cells of the pancreas. This hormone is released ________.
when the body's glucose level rises
Which of the following is true about calcium homeostasis
Parathyroid hormone is the single most important regulator of calcium levels in the blood
Several hormones are synthesized in the hypothalamus and transported to the anterior pituitary gland. The mechanism of transportation from hypothalamus to anterior pituitary gland is through the
hypophyseal portal system
The hypothalamic-hypophyseal tract
is partly contained within the infundibulum
The neurohypophysis or posterior lobe of the pituitary gland is not a true endocrine gland because
it is only a hormone storage area that receives hormones from the hypothalamus for release
The parathyroid glands maintain adequate levels of blood calcium. This is accomplished through _
targeting the bone and activating osteoclasts so that calcium will be released
The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on ________.
the presence of the appropriate receptors on the cells of the target tissue or organ
Tinnitis, vertigo, and gradual hearing loss typify the disorder called
Human photoreceptors respond to light in the 100-300 nm range
Which of the following is true about light and vision
Light is a form of electromagnetic radiation that slows down as it enters a medium of relatively less density.
Visual processing in the thalamus does not contribute significantly to
________ is a disorder of the olfactory nerves
The tarsal plate of the eyelid
is composed of connective tissue surrounding a thin cartilage plate