How is each kidney supplied with oxygenated blood and drained of deoxygenated blood?

• A renal artery carries oxygenated blood from the aorta to the kidneys,
• and a renal vein carries deoxygenated blood to the vena cava

How does urine produced in the kidneys leave the body?

• By muscular contraction the urine passes down the ureter           
• Into a muscular bag called the bladder
• When the sphincter at the base of the bladder is relaxed
• The urine passes down the urethra and out of the body

What is the term for the elimination of urine fromthe body?

• Urination or Micturition

Is urination voluntary?

• It is originally an autonomic reflex reaction
• but we learn to exert voluntary control over it.

• Stretch receptors in the bladder wall triggers a response causing it to contract
• and the sphincter to relax

The kidney is enclosed within a protective                        and shows distinct regions. The outer region, the            , has a more uneven texture than the inner               . This section had zones called              which surround the central cavity, the           . This cavity is continuous with the            .

• Fibrous Capsule
• Cortex
• Medulla
• Pyramids
• Pelvis
• Ureter

What is the kidney made of?

• A little connective tissue
• And nephrons; microscopic tubules with a rich blood supply