Urinary System Structure Jennifer Dean Hill City and

Urinary System Structure Jennifer Dean Hill City and Islington College Students Name: …………………………………. .

Topic The Urinary System (Human Biology) Aims Ø A group activity used in order to revise or learn the function of the major body systems. Ø It is tailored to level 2 BTEC biology and would help the students to complete their assignment Level 2 Method Power. Point slide (hand-outs) Equipment Ø Laptop & Projector Ø Hand-out (print slides 1, 3, 4) Ø Pens Duration 5 -10 Minutes

The Urinary System 3 1 2 6 4 7 8 9 5

The Urinary System 3 Inferior Vena Cava 1 Abdominal Aorta 2 Renal Artery 5 Kidney 4 Renal Vein 6 Ureter 7 Urinary Bladder 8 Urethra 9 Sphincter

The Urinary System Structure Bladder Describe it’s structure How it’s structure is linked to it’s role Ureter Sphincter

The Urinary System Structure Bladder Describe it’s structure It is a large bag, has two entrances and one exit. Ureter Very long, thin tube. Sphincter Ring of muscle How it’s structure is linked to it’s role The bladder is a pyramidal shaped organ, which sits in our pelvis. The main function of the bladder is to store urine, and under the appropriate signals, release it into a tube which carries the urine out of the body. Normally, the bladder can hold up to 500 mls of urine. The ureters are tubes that are 25 -30 cm long and lined with smooth muscle. These tubes help carry urine to the bladder. The muscular tissue helps force urine downwards. They enter the bladder at an angle, so urine doesn't flow up the wrong way. Circular muscles called sphincters help keep urine from leaking. The sphincter muscles close tightly like a rubber band around the opening of the bladder into the urethra, the tube that allows urine to pass outside the body.

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