Question

lo 6.2. what is the renal pelvis?
a tube that connects the bladder to the outside of the body.
a funnel - shaped cavity that collects urine from the renal medulla and transports it to the ureter.
a tube - like structure that absorbs nutrients from urine and returns them to the bloodstream.
a gland that secretes hormones to regulate urine production.
a small sac that stores urine before it is expelled from the body.

Explanation:

The renal pelvis is a funnel - shaped cavity. It collects urine from the renal medulla (the inner part of the kidney). Then it transports this urine to the ureter (the tube that carries urine from the kidney to the bladder).

• The tube that connects the bladder to the outside of the body is the urethra.
• There is no tube - like structure that absorbs nutrients from urine (urine is a waste product, and re - absorption of nutrients occurs earlier in the nephron, not from urine).
• The gland that secretes hormones to regulate urine production is not the renal pelvis (for example, the adrenal gland has some hormonal functions related to the kidneys, but not the renal pelvis).
• The small sac that stores urine before it is expelled from the body is the bladder.

Answer:

A funnel - shaped cavity that collects urine from the renal medulla and transports it to the ureter.