The three types of receptors found in the special senses.
What are photoreceptors, mechanoreceptors, and chemoreceptors?
100
The two endocrine organs composed primarily of neurosecretory cells.
What are the posterior pituitary and the adrenal medulla?
100
The precursor cells of platelets.
What are megakaryocytes?
100
The period of the heart cycle during which AV valves are closed.
What is ventricular systole?
100
The specific causes of diabetes insipidus.
What is hyposecretion of ADH?
200
The layer of the eyeball wall that supplies blood and a dark, light-absorbing pigment.
What is the choroid?
200
The six hormones secreted by the anterior pituitary gland.
What are FSH, LH, ACTH, TSH, prolactin, and GH?
200
The definition of a thrombus.
What is a clot that forms in an unbroken blood vessel?
200
The definition of tachycardia.
What is a rapid heart rate that is over 100 bpm?
200
The bleeding disorder associated with a lack of circulating platelets.
What is thrombocytopenia?
300
The three subdivisions of the bony labyrinth.
What are the cochlea, vestibule, and semicircular canals?
300
Two hypothesized roles of melatonin in humans.
What are the regulation of the night-day cycle, the coordination of fertility hormones, and inhibition of the reproductive system until adult size is reached?
300
The type of leukocyte that would increase most in numbers during a chronic infection.
What are monocytes?
300
Structures found in capillaries that specialize in absorption or filtration.
What are fenestrae?
300
The definition of thrombophlebitis.
What is the inflammation of a vein that results from clot formation in a vessel with poor circulation?
400
The our structures through which light is refracted, in order.
What are the cornea, aqueous humor, lens, and vitreous humor?
400
Three hormones associated with the fasting state.
What are glucagon, PTH, ADH, glucocorticoids, and aldosterone?
400
The primary difference between leukocytosis and leukemia.
What is the overproduction of immature WBCs that lack their normal protective functions?
400
The layer of a blood vessel that triggers platelet plug formation when it is damaged.
What is the tunica intima?
400
Three possible causes of congestive heart failure.
What are coronary atherosclerosis, persistent hypertension, and multiple myocardial infarctions?
500
The source of powerfully emotional olfactory impressions.
What are the close ties of the olfactory pathway to the limbic system?
500
The two roles of progesterone during pregnancy.
What are suppression of the uterine muscles and preparation for lactation?
500
Three possible causes of anemia.
What are low dietary iron, low number of RBCs, and abnormal or deficient hemoglobin content?
500
The two events associated with the heart sounds.
What are the closing of the AV valves during early systole and the closing of the semilunar valves after systole?
500
The likely cause of symptoms that include hyperactivity, excessive nervousnes, and high metabolic rate, but not hyperglycemia.