2 Flashcards
fenestra ovale
membrane covered opening between the cochlea and the middle ear, stapes transmit movement of the tympanic membrane to the perilymph through this opening
chief cells
pepsinogen producing cells in the stomach
polydipsia
excessive thirst and water consumption
ejaculation
the forceful removal (ejection) of the sebum through the urethra in the males
gametogenesis
production of reproductive cells (gametes) in the reproductive organs (oogenesis, spermatogenesis)
intrinsic factor
protein secreted in the stomach, needed for the absorption of B12 vitamin (extrinsic factor)
renin
peptid hormone (protease) released by the juxtaglomerular apparatus, transforms angiotensinogen into angiotensin I
ANP
atrial natriuretic peptide, secreted in the atrium of the heart, it increases Na+ and urine discharge decreasing blood volume
osteoclast
phagocyte digesting bone tissue allowing remodeling of bone
orgasm
highest point of sexual excitement, marked by strong feelings of pleasure and marked normally by ejaculation of semen by the male and by vaginal contractions within the female
P ganglion cell
ganglion cell projecting to the parvocellular layer of the corpus geniculatum laterale
semen
a mixture of sperm cells and of excretes of different reproductive glands (prostate, vesicula seminalis) which is ejaculated during the sexual intercourse
clearance
a functional measure of the kidney function, the plasma volume that is (theoretically) fully cleared of a certain material per a unit of time in the kidneys
secretin
produced in the small intestine in response to acid, it increases HCO3- production in the pancreas and inhibits emptying of the stomach
umami
the fifth basic taste evoked by peptides, amino acids and most importantly glutamate in the food
