The ________ urethral sphincter is composed of skeletal muscle and under voluntary control.
external
The calyces and renal pelvis are all flared branches off the
________, which is an organ that
transmits urine to the bladder.
ureter
The ________, a clinical landmark in the urinary bladder, is bounded
by the two ureteric
openings and the internal urethral orifice.
trigone
Most water and solutes are resorbed from the convoluted renal tubules into the ________.
peritubular capillaries
The U-shaped ________ is located between the proximal and distal convoluted tubules.
nephron loop
________ are large cells with complex "footlike" processes
that wrap around the glomerular
capillaries.
podocytes
The ________ artery is located between the interlobar and cortical radiate arteries.
arcuate
Between the fibrous renal capsule and the renal fascia is a
cushioning and supportive
________ fat capsule.
perirenal
Adjacent collecting ducts join to form larger ________ that drain into the minor calyx.
papillary ducts
Blood pressure is regulated by a specialized structure, known as the
________, that contacts
both the afferent arteriole and the
terminal end of the nephron loop.
juxtaglomerular apparatus
The ________ layer of the ureters propel urine to the bladder by peristalsis.
muscularis
Voiding of urine, known as ________, involves sympathetic,
parasympathetic, and somatic
fibers.
micturition
Five ________ arteries branch from the renal artery and enter the hilus.
segmental
________ cells are modified smooth muscle cells of the afferent and
efferent arterioles that
secrete the hormone renin.
Granular (or Juxtaglomerular)
Glomeruli arise from branches off the ________ arterioles of the cortex.
afferent glomerular