CCEA A-Level Health and Social Care 0003
Promoting Quality Care
Communication in Health, Social Care and Early Years Settings
Health and Well-Being
Safeguarding Children
Adult Service Users
Holistic Therapies
Understanding the Physiology of Health and Illness
Applied Research
Body Systems and Physiological Disorders
Providing Services
Public Health and Health Promotion
Supporting the Family
Understanding Human Behaviour
Human Nutrition and Health
Understanding the Physiology of Health and Illness
The urinary system and the kidney nephron
- 3 things to know
- AS 7
Overview
Two main roles of the urinary system, main organs of the urinary system and difference between a ureter and the urethra.
What you need to know
Answer each one before you reveal it.
Define excretion.
Name the main organs of the urinary system.
Questions from this subtopic
Each one with the model answer underneath.
- 1
State the two main roles of the urinary system.
Model answer
The urinary system carries out excretion, removing metabolic waste from the blood, and osmoregulation, controlling the body's water and salt content.
- 2
Define excretion.
Model answer
Excretion is the removal from the body of the waste products of metabolism.
- 3
Name the main organs of the urinary system.
Model answer
The urinary system is made up of two kidneys, two ureters, the bladder and the urethra.
- 4
What is the difference between a ureter and the urethra?
Model answer
A ureter carries urine from a kidney down to the bladder, while the urethra carries urine from the bladder out of the body.
- 5
Which waste product of protein breakdown do the kidneys remove?
Model answer
The kidneys remove urea, the waste the liver makes when it breaks down surplus amino acids.
- 6
What is a nephron?
Model answer
A nephron is the microscopic filtering unit of the kidney, and each kidney holds around a million of them.
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