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Slide 1 - Diapositive
Homeostasis, Health & Disease
Lesson 7
Slide 2 - Diapositive
Practice Quiz:
15 min for the PRACTICE quiz
timer
15:00
Slide 3 - Diapositive
QUESTION 1:
Name 5 organ systems and an example of an organ for each one.
Many possibilities.
R - 5P
Slide 4 - Diapositive
Body systems & their functions:
Integumentary system - The largest organ of the body that forms a physical barrier between the external environment and the internal environment that it serves to protect and maintain.
Muscular system - Allows the body to move
Reproductive system - facilitates the production of offspring
Endocrine system - secretes chemical signals that allow body systems to respond to environmental changes and to one another
Urinary system - Extracts and excretes dissolved waste product from the blood
Digestive system - Breaks down food into usable nutrients
Lymphatic system - responsible for absorbing fat from the digestive system, maintaining fluid balance, and supporting the cells of the immune system
Respiratory system - facilitates gas exchange between cells and the environment
Nervous system - allows us to perceive and respond to the world around us
Skeletal system - gives the body structure
Circulatory system - Responsible for transport through the body
Slide 5 - Diapositive
QUESTION 2A:
Take a very good look at the image beside this text. This image shows how our body handles a negative feedback loop. Label each number on the diagram.
Receptor
Control Centre
Effector
T1 - 3P
Slide 6 - Diapositive
QUESTION 2B:
Give the correct definition of homeostasis and an example of it in the human body.
Homeostasis is the ability or tendency of the body or a cell to seek and maintain a condition of equilibrium (balance).
Temperature, water levels, glucose levels
R - 2P
Slide 7 - Diapositive
QUESTION 3A:
Name each type of pathogen you have learned.
bacteria
virus
fungi
parasites
R - 2P
Slide 8 - Diapositive
QUESTION 3B:
Give an example of a disease for each pathogen.
bacteria - salmonella, e-coli, TB
virus - HIV, COVID-19, influenza, enz.
fungi - athletes foot, ringworm
parasites - worms, malaria
R - 2P
Slide 9 - Diapositive
QUESTION 4:
Malaria is a disease that usually occurs in tropical countries, but the last couple of years it has been diagnosed in Southern Europe.
- What type of pathogen is Malaria?
- How does it spread (keywords!)
- Why is the range of this pathogen spreading?
T1 - 3P
Slide 10 - Diapositive
QUESTION 4:
- What type of pathogen is Malaria?
Parasite
- How does it spread (keywords!)
The parasite spreads by the animal vector of mosquitoes.
- Why is the range of this pathogen spreading?
Due to global warming Southern Europe is warming up and the mosquitoes carrying malaria can travel further north.