Question at position 22 The glomerulus is a tuft of ______ located within the renal corpuscle.TubulesCapillariesVeinsArteries单项选择题
A
Tubules
B
Capillaries
C
Veins
D
Arteries

Question

Question at position 22 The glomerulus is a tuft of ______ located within the renal corpuscle.TubulesCapillariesVeinsArteries

BlackTom AI · Accepted Answer

Question at position 22: The glomerulus is a tuft of ______ located within the renal corpuscle. 
Options: Tubules, Capillaries, Veins, Arteries

Option 1 (Tubules): Tubules are tubular structures that carry filtrate and reabsorb substances along the nephron, but they do not form the glomerular tuft. So this choice misidentifies the core structure of the glomerulus.

Option 2 (Capillaries): The glomerulus is composed of a network of tiny blood vessels – capillaries – that are tightly intertwined and form the filtering unit inside the renal corpuscle. This description accurately matches the histology of the glomerulus, explaining why the tuft is described as capillary in nature.

Option 3 (Veins): Veins return blood away from tissues and do not make up the glomerular tuft. The glomerulus consists of arterial-derived capillaries, not venous channels, so this choice contradicts the arterial-portal structure typical of the glomerular apparatus.

Option 4 (Arteries): While arterial components feed the glomerulus (via the afferent and efferent arterioles that connect to the capillary tuft), the glomerulus itself is not a cluster of arteries; it is the capillary network that constitutes the tuft. Thus this option overstates the histology of the glomerulus.

In summary, the option that best matches the anatomical description of the glomerulus within the renal corpuscle is the one identifying it as a tuft of capillaries, since the glomerular filtration barrier is formed by a dense capillary network rather than tubular structures, veins, or arterial bundles.

Question at position 22 The glomerulus is a tuft of ______ located within the renal corpuscle.TubulesCapillariesVeinsArteries单项选择题

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