1. State 1 excretory organ  Skin, kidney, liver, lung 2. State the 3 layers in the kidney  Cortex, medulla, renal pelvis 3. State the name of the tube that goes from the kidney to the bladder  Ureter 4. What is the role of the glomerulus and capsule?  Filter the blood 5. Where is urea made?  Liver 6. What is urea made from?  Excess amino acids 7. What is the name of the hormone that controls the water content of the blood?  ADH (Anti Diuretic Hormone) 8. What effect does ADH have on the kidney tubules?  Make them more permeable to water (water goes into the blood)

Correct label and state the function of each part of a nephron (kidney tubule) Important in reabsorption of water (under hormonal control) Explain the detailed functioning of the kidney (Grade A)

Blood enters the kidney in the ________________________ Purified blood leaves the kidney in the ________________________ Waste materials leave the kidney in a tube called the ________________________ Useful molecules are ________________ The blood is filtered because it is under _________________ pressure. ________________________ molecules stay in the blood Small molecules pass through the filter. renal artery high large reabsorbed renal vein ureter

Patients who have kidney failure can’t filter their blood properly – but a dialysis machine can do it for them.  How often does dialysis need to be done? For upto 10hrs every few days  Why is the membrane semi- permeable? To allow waste substances to pass through e.g. urea  Why does dialysis fluid have the same concentration of salts and glucose as blood plasma? So they aren’t removed from the blood Explain the principle of a dialysis machine (Grade A)

1. Where in the body is urea produced? 2. What is getting rid of undigested food from the body called? 3. What is the function of the glomerulus? 4. What process is used to reabsorb sodium? 5. Why is glucose reabsorbed by the body? 6. What does the presence of glucose in the urine suggest? Liver Egestion Ultrafiltration Active transport Needed for respiration Diabetes

Learning objectivesSuccess criteria  To understand the organs of excretion, specifically the kidney  State and locate the main excretory organs (E)  Describe the gross structure of the kidney (Grade C)  Explain the detailed functioning of the kidney (Grade A)  Explain the principle of a dialysis machine (Grade A)

1. State 1 excretory organ  Skin, kidney, liver, lung 2. State the 3 layers in the kidney  Cortex, medulla, renal pelvis 3. State the name of the tube that goes from the kidney to the bladder  Ureter 4. What is the role of the glomerulus and capsule?  Filter the blood 5. Where is urea made?  Liver 6. What is urea made from?  Excess amino acids 7. What is the name of the hormone that controls the water content of the blood?  ADH (Anti Diuretic Hormone) 8. What effect does ADH have on the kidney tubules?  Make them more permeable to water (water goes into the blood)

 Describe the main stages of the menstrual cycle (Grade E)  Describe the role of hormones in the menstrual cycle (Grade C)  Explain how negative feedback is used in control of the menstrual cycle (Grade A)

 In pairs label the reproductive systems

Testis (pl testes) Scrotum Coiled tube Sperm duct Glands Bladder Urethra Penis Erectile tissue Foreskin MALE SYSTEM © Teachable and Jan Stevens. Some rights reserved.

Stores urine A sac of skin that hold the testes outside the body to keep them cool Where sperm are stored Carries sperm and urine out of the body Make liquid to feed and activate the sperm Where the sperm are made Fills with blood to stiffen the penis Transfers sperm to the woman Squeezes the sperm along BLADDER SCROTUM COILED TUBE ERECTILE TISSUE PENIS URETHRA GLANDS TESTIS URETHRA W h a t ’ s w h a t ? © Teachable and Jan Stevens. Some rights reserved.

OVARY OVIDUCT or FALLOPIAN TUBE UTERUS or WOMB SOFT LINING MUSCLE LAYER CERVIX VAGINA FEMALE SYSTEM © Teachable and Jan Stevens. Some rights reserved.

Lined with hairs (cilia) that beat and carry the egg along. Where the eggs are made Where the baby grows Rich in blood vessels to supply the baby with food and oxygen Used to push the baby out during birth. Narrow opening through which the baby must be pushed out during birth. Where the sperm are released by the man’s penis. SOFT LINING CERVIX OVIDUCT MUSCLE LAYER OVARY VAGINA UTERUS W h a t ’ s w h a t ? © Teachable and Jan Stevens. Some rights reserved.

 Menstrual Cycle  changes-that-occur-during-the-menstrual- cycle/1847.html changes-that-occur-during-the-menstrual- cycle/1847.html  Ovulation  tion/1845.html tion/1845.html

 In pairs decide on the main stages of the menstrual cycle

 Menstruation  Uterus lining breaks down (a period)  Thickening of uterus lining  Ovulation  Egg released by ovary

 Oestrogen  Repairs uterus wall  Progesterone  Maintains uterus wall  FSH (follicle stimulating hormone)  Released by pituitary gland  Stimulates egg development  LH (lutenising hormone)  Released by pituitary gland  Controls ovulation

 Progesterone inhibits FSH  No more eggs are matured

 Complete worksheet B5g1 part 2&3

2. A) B) name of hormoneone function of hormone hormone AOestrogenBuild lining hormone BProgesteroneMaintain lining hormone Bhormone A

2. C i) Stimulate the development of the egg C ii) Cause ovulation (egg release) 3. A) Ovary B) Progesterone inhibits FSH C) pituitary gland follicle stimulating hormone (FSH) luteinising hormone (LH) ovary stimulates progesterone release stimulates egg development negative feedback on FSH release Oestrogen inhibits FSH

1. What causes the uterus lining to break down?  No fertilised egg 2. Where are the hormones oestrogen and progesterone made?  Ovaries 3. From where are the eggs released?  Ovaries 4. Which hormone stimulates egg release  LH 5. Which two hormones are produced by the pituitary gland?  LH and FSH 6. What does follicle stimulating hormone do?  Stimulate egg development 7. Which two hormones are involved in the uterus lining?  Progesterone and Oestrogen 8. What is ovulation?  Egg release 9. What hormones are inhibited by progesterone?  LH and FSH