review Flashcards
functional unit of kidneys
nephrons~1 million per kidney
difference between elimination and excretion
elimination is the removal of waste and indigestible material from the body.
excretion is the removal of metabolic waste
correct pathway of nephron
Renal Corpuscle Proximate convoluted tube (PCT) Loop of Henle Distal convoluted tube (DCT) Collecting Duct Papillary Duct
Renal corpuscle
Bowmans capsule & glomerulus
site of filtration
what is removed in urine?
dissolved solutes including metabolic waste
Urea, Creatinine and Uric acid
Where does reabsorption in bloodstream occur?
capillaries
Should you have bacteria in urine?
no
segmental vein
none of the above
no/false
where is highest concentration of sodium chloride in loop of henle?
bottom of loop
where is the lowest concentration of sodium chloride in loop of henle?
top of loop
all mammals menstruate
false
whats responsible for male erection?
Sexual stimulation
Release of cyclic GMP in penis
Spongy erectile tissue and arteries expand
Blood rushes into newly opened space
In which phase does an erection occur?
excitement
testosterone
From interstitial cells in testes
Responsible for “male” characteristics
FSH (follicle-stimulating hormone)
From anterior pituitary
Stimulates spermatogenesis
LH (luteinizing hormone)
From anterior pituitary
Stimulates interstitial cells
GnRH (gonadotropin-releasing hormone)
From hypothalamus
Stimulates LH and FSH secretion
Oogenesis
After puberty process resumes and 1 egg is ovulated per month until menopause.
Meiosis II begins prior to ovulation but isn’t completed unless fertilization occurs.
where dos fertilization occur?
uterine tube
what phase does tenting occur?
Plateau phase
how long is ovum viable?
12-24 hours
where is estrogen produced in males?
testes and adrenal glands
increase in GnRH production leads to what?
LH and FSH secretion
Phases of Menstrual cycle
Flow Phase(day 1-4) Follicular Phase (days 4-14) -Ovulation occurs at end of follicular Luteal Phase (days 14-24)
