Seventy percent of all sensory receptors are located in the?
Eye
ear
skin
nose
The only special sense not fully functional at birth is the sense of ?
taste
smell
hearing
vision
The blind spot of the eye is cause by?
more rods than cones within the retina
macula lutea nerve paths
the absents of cones in the fovea
there are no photoreceptors where the optic nerve leaves the eye
Dark adaptation
is much faster than light adaptation
results in inhibition
primariy involves improvement
involves accumulation of rhodopsin
Ordinarily, it is not possible to transplant tissues from one person to another, yet corneas can be transplanted without tissue rejection. This is because the cornea ________
is not a living tissue
has no nerve supply
has no blood supply
does not contain connective tissue
Most newborns ________
are myopic
often use only one eye at a time
sees in tones of red and green only
cry with copious tears
what is the main function of the rods in the eye?
vision in dim light
accomodation for near vision
depth perception
color vision
The ability to clearly see objects at a distance but not close up is properly called ________.
myopia
hypopia
hyperopia
presbyopia
Bitter taste is elicited by ________.
hydrogen ions
alkaloids
acids
metal ions
Which of the follow types of neurons are replaced throughout adult life?
olfactory receptor cells
retinal biopolar cells
retinal gangloin cells
inner hair cells
receptors for hearing are located in the
eye
vestibule
cochlea
* The receptor for static equilibrium is the ________.
macula
urticle
duct
canals
What structure regulates the amount of light passing to the visual receptors of the eye?
iris
cornea
lens
aqueous humor
Virtually all of the protein or amino acid-based hormones exert their effects through intracellular ________.
ions
deactivators
nucleotides
second messengers
which of the following is not a cardinal sign of diabetes mellitus?
polyuria
polydipsia
polyphagia
all of these are signs
oxytocin ______________
release is an example of a positive feedback control mechanism
is an adenohypophyseal secretion
controls milk production
important during menstration
ADH ___________
increases urine production
promotes dehydration
in the adenohypophysis
is inhibited by alcohol
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
it is unable to function as an endocrine tissue
embryonically it was embryo tissue
it is strictly a part of the neural system nothing to do with hormone release
the major targets of growth hormone are
bones and skeletal muscle
the liver
the brain
the adrenal glands
which of the following is true about calcium homeostasis?
Parathyroid hormone causes an increase in osteoblast activity
High calcium levels cause bone resorption.
Increased calcitonin levels will cause increased blood calcium levels
Parathyroid hormone is the single most important regulator of calcium levels in the blood
normal development of the immune system response is due in part to hormones produced by the
adrenal
medulla
thymus glad
thyroid gland
when it becomes necessary to enlist the flight-or-fight response, a hormone that is released during the alarm phase of the general adaption syndrome is
estrogen
epinephrine
angiotensinogen
renin
storehouse for the hormones produced by the hypothalamus of the brain
Produces steroid hormones and glucocorticoids and mineralocorticoids
produces hormones and is considered a neuroendocrine organ
match the answer to the correct location of the yellow dot
drag correct answer to yellow dot
match the pair drag to yellow dot
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An autoimmune problem involving the thyroid gland
addisons disease
graves disease
Hyposecretion of growth hormone
pituitary dwarfism
hyposecretion of the pancreas
diabetes mellitus
acromegaly
hyposecretion of the adrenal cortex
addison's disease
hypersecretion of growth hormone
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