Match the labeled structure in the diagram with the appropriate description. a. The base of this structure borders the renal cortex. b. Proximal and distal convoluted tubules are located in this region. c. This structure transports urine to the urinary bladder. d. Papillary ducts drain into this structure. e. This structure is an inward extension of the renal cortex. f. Major calyces drain urine directly into this structure. &This structure forms the apex of a renal pyramid h. Several minor calyces merge to form this structure
The Correct Answer and Explanation is :
Based on the provided diagram and descriptions, here are the correct matches:
a. Renal Medulla: The base of this structure borders the renal cortex.
b. Renal Cortex: Proximal and distal convoluted tubules are located in this region.
c. Ureter: This structure transports urine to the urinary bladder.
d. Renal Papilla: Papillary ducts drain into this structure.
e. Renal Column: This structure is an inward extension of the renal cortex.
f. Renal Pelvis: Major calyces drain urine directly into this structure.
g. Renal Papilla: This structure forms the apex of a renal pyramid.
h. Major Calyx: Several minor calyces merge to form this structure.
Explanation:
The kidney’s internal anatomy is organized into several distinct regions, each with specific functions:
- Renal Cortex: The outer layer of the kidney, containing the renal corpuscles and the proximal and distal convoluted tubules.
- Renal Medulla: The inner region of the kidney, composed of renal pyramids separated by renal columns.
- Renal Pyramid: Cone-shaped structures within the renal medulla that contain the loops of Henle and collecting ducts.
- Renal Papilla: The apex of each renal pyramid, where urine is drained into the minor calyces.
- Minor Calyx: Cup-shaped structures that collect urine from the renal papillae.
- Major Calyx: Formed by the merging of several minor calyces; it drains urine into the renal pelvis.
- Renal Pelvis: The funnel-shaped structure that collects urine from the major calyces and transports it to the ureter.
- Ureter: The duct that carries urine from the renal pelvis to the urinary bladder.
- Renal Column: Extensions of the renal cortex that separate the renal pyramids.
Understanding these structures is essential for comprehending kidney function and the pathway urine takes from formation to excretion.