1. state 1 excretory organ skin, kidney, liver, lung 2. state the 3 layers in the kidney cortex,...
DESCRIPTION
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 ureterTRANSCRIPT
HOMEWORK STARTER1. State 1 excretory organ
Skin, kidney, liver, lung2. State the 3 layers in the kidney
Cortex, medulla, renal pelvis3. 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 veinureter
DIALYSISPatients 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)
PLENARY1. 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
UltrafiltrationActive
transport
Needed for respiration
Diabetes
WASTE DISPOSAL PART 1
Learning objectives Success 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)
B5G1 MENSTRUAL
CYCLE
HOMEWORK STARTER1. State 1 excretory organ
Skin, kidney, liver, lung2. State the 3 layers in the kidney
Cortex, medulla, renal pelvis3. 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)
SUCCESS CRITERIA 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)
STARTER In pairs label the reproductive systems
Testis (pl testes)
Scrotum
Coiled tube
Sperm duct
Glands
Bladder
Urethra
Penis
Erectile tissue
Foreskin
MALE SYSTEM
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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
What’s what?
© Teachable and Jan Stevens. Some rights reserved. http://teachable.net/res.asp?r=2595
OVARY
OVIDUCT or FALLOPIAN TUBE UTERUS or WOMB
SOFT LINING
MUSCLE LAYER
CERVIXVAGINA
FEMALE SYSTEM
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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
What’s what?
© Teachable and Jan Stevens. Some rights reserved. http://teachable.net/res.asp?r=2595
VIDEO CLIPS Menstrual Cycle
http://www.bbc.co.uk/learningzone/clips/the-changes-that-occur-during-the-menstrual-cycle/1847.html
Ovulationhttp://www.bbc.co.uk/learningzone/clips/ovu
lation/1845.html
TASK In pairs decide on the main stages of
the menstrual cycle
MAIN STAGES OF MENSTRUAL CYCLE Menstruation
Uterus lining breaks down (a period) Thickening of uterus lining Ovulation
Egg released by ovary
ROLE OF HORMONES IN THE MENSTRUAL CYCLE Oestrogen
Repairs uterus wall Progesterone
Maintains uterus wall FSH (follicle stimulating hormone)
Released by pituitary glandStimulates egg development
LH (lutenising hormone)Released by pituitary glandControls ovulation
HIGHER NEGATIVE FEEDBACK Progesterone inhibits FSH
No more eggs are matured
TASK Complete worksheet B5g1 part 2&3
ANSWERS2. A)
B)
name of hormone one function of hormone
hormone A Oestrogen Build lining
hormone B Progesterone Maintain lining
hormone Bhormone A
X Y
ANSWERS2. C i) Stimulate the development of the egg
C ii) Cause ovulation (egg release)3. A) Ovary
B) Progesterone inhibits FSHC)
pituitary gland
follicle stimulating hormone (FSH)
luteinising hormone(LH)
ovary
stimulates progesterone
release
stimulates egg development
negative feedback on FSH release
Oestrogen inhibits FSH
PLENARY1. What causes the uterus lining to break down?
No fertilised egg2. 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 FSH6. What does follicle stimulating hormone do?
Stimulate egg development7. Which two hormones are involved in the uterus lining?
Progesterone and Oestrogen8. What is ovulation?
Egg release9. What hormones are inhibited by progesterone?
LH and FSH