40 Questions
The urethra in males has three parts: prostatic, membranous, and penile
True
The artery that supplies blood to the prostatic part of the male urethra is the inferior vesical artery
True
The membranous part of the male urethra is primarily supplied by the bulbourethral artery
False
Podocytes are stellate epithelial cells found in the visceral layer of the glomerular capsule
True
The afferent arterioles that bring blood to the glomerular capillaries arise from interlobular arteries in the medulla of the kidney
False
The pyramids in the kidney are not subdivided into outer and inner zones based on the organization of tubules and blood vessels within them.
False
The urethra receives its innervation from the renal plexus.
False
Podocytes play a role in maintaining filtration rate by adjusting contractions in Bowman's capsule.
False
The metanephros forms a uriniferous tubule draining into the duct farthest from its point of origin.
True
The urinary space in Bowman's capsule is also known as Bowman's space.
True
Blood flow in the kidney starts from the renal pelvis and ends at the renal papilla.
False
Each vesicular mass in the kidney develops a central cavity and remains linear in shape.
False
The proximal tubule consists of the proximal convoluted tubule and the distal straight tubule.
False
Descending thin limbs of the Loop of Henle begin at the border between the inner and outer stripe of the outer medulla.
True
Glomerular mesangial cells have a primary role in secretion of hormones to regulate urine output.
False
The nephric system includes the pronephros, mesonephros, and metanephros in that specific order during kidney development.
True
The pronephros consists of 4-8 pairs of tubules that open into a single primary duct.
False
The mesonephric duct establishes a connection with the primary nephric duct as it grows cranially to join the cloaca.
False
The cephalic end of the ureteral bud expands to form the renal pelvis during the development of the metanephros.
True
Mesodermal cells become arranged close to the open end of the collecting ducts during the development of the metanephros.
False
The Juxtaglomerular Apparatus is located where the thick descending limb meets the macula densa.
False
Extraglomerular mesangial cells are differentiated smooth muscle cells in the walls of the efferent arterioles.
False
The proximal convoluted tubule is permeable to only water as it descends into the medulla.
False
The distal convoluted tubule reabsorbs glucose and amino acids from the filtrate back into the bloodstream.
False
The ureters originate from the metanephros embryologically.
False
The glomerular basement membrane separates the blood from the capsular space and forms by fusion of the capillary- and podocyte-produced basal laminae.
True
The cells of the proximal tubules have central nuclei and very basophilic cytoplasm because of the abundant mitochondria.
False
The thin ascending limb of the loop becomes the thick ascending limb, with simple cuboidal epithelium and many mitochondria.
False
Peritubular capillaries are scarce in the surrounding connective tissue interstitium.
False
Slit diaphragms in the glomerular filtration barrier are zipper-like structures that bridge adjacent pedicels.
True
The kidneys are retroperitoneal organs.
True
The main function of the nephron is to produce urine.
False
The ureters transport urine from the kidneys to the bladder through peristaltic contractions.
True
The trigone is a smooth triangular area in the bladder formed by the openings of the ureters and the urethra.
True
The parasympathetic nervous system is responsible for relaxation of the bladder detrusor muscle during micturition.
True
Filtration in the kidneys primarily occurs in the loop of Henle.
False
Erythropoietin production is one of the endocrine functions of the kidney.
True
Fenestrated capillaries in the glomerulus allow for efficient filtration due to their large pores.
True
The loop of Henle is responsible for reabsorption of water and electrolytes in the nephron.
True
The juxtaglomerular apparatus is involved in regulating blood pressure and filtration rate in the kidney.
True
Test your knowledge on the function of the nephron, focusing on the renal corpuscle including the glomerulus and Bowman's capsule. Learn about the role of the juxtaglomerular apparatus in ADH response and water reabsorption.
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