test #4 Flashcards
The majority of nephrons are found in which region of the kidney
cortical
Which of the following structures are bundled together in the renal pyramids forming
the medullary portion of the kidney?
collecting ducts
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What is true about the kidneys
They help regulate blood volume, salt balance and blood pH.
Which of the following fenestrated or ‘leaky’ blood vessels are under relatively high
hydrostatic pressure which makes them ideal for carrying out renal filtration?
glomerular capillaries
The capsule surrounding the glomerulus within the renal corpuscle is known as the
Bowman’s capsule
The filtration of plasma takes place in the
renal corpuscle
The filtration barrier in the renal corpuscle consists of which 3 layers
fenestrated endothelium of glomerulus, basement membrane of glomerulus
and podocyte filtration slits
The main function of the proximal convoluted tubule is to
reabsorb ions, glucose, amino acids, water, and vitamins
The afferent arteriole can suddenly respond to local blood flow changes it detects
internally by either vasoconstricting or vasodilating its muscular walls. In so doing, a
self-regulating response unfolds. This autoregulation is called
myogenic
ue to its low hydrostatic pressure compared to other blood vessels within the kidney,
solutes and water are usually reabsorbed by the
peritubular capillaries
The path of blood flow through the kidneys is unique. The blood flows from a(n)
arteriole to the glomerular capillaries to an arteriole
Molecules or cells larger than _____________ do not normally move through the
filtration membrane to enter the filtrate
albumin
Which pressure(s) opposes glomerular filtration
capsular hydrostatic pressure blood colloidal osmotic pressure
Reabsorption of filtered glucose into tubular epithelial cells from the lumen in the PCT
is done mostly by means of
cotransport
The process of _________ involves a carrier protein that can transport a molecule
across the cell membrane and down its concentration gradient
. facilitated diffusion
An adult excretes a large volume of dilute urine daily for the past several weeks. This
response may be due to the
absence of ADH
Aldosterone what activates Na+/K+ pumps increasing Na+ retention in the body
Aldosterone
When ADH in the blood decreases, then
the permeability to water in the collecting system decreases
The detrusor muscle is closely associated with the
urinary bladder
Fertilization results in the formation of a
zygote which is diploid or 2n
A lack of testosterone in males will cause the genital tubercle to form a(n)
clitoris
The first event to occur during development of the reproductive system would be the
descent of the urogenital diaphragm
The secretory structures at the base of the penis that produce a thick, alkaline mucus
are the
Cowper’s glands
