Feedback Loops
When a wound occurs what happened in your body?
You break a blood vessel → bleeding starts
What is homeostasis?
Maintaining stable internal conditions in the body.
What are the two main parts of the nervous system?
Central nervous system (CNS) and peripheral nervous system (PNS).
What is a disease?
A condition that negatively affects the normal functioning of the body.
How can traditional knowledge contribute to modern medicine?
It can provide information about plants and natural substances that researchers can investigate scientifically.
What happens when a condition moves away from its normal level?
The body detects the change and activates a response to return it towards normal.
Name 3 internal conditions the body keeps stable.
Temperature, pH and hormone levels.
What is the endocrine system?
A system of glands that releases hormones into the bloodstream.
Difference between infectious and non-infectious disease?
Infectious diseases are caused by pathogens and can spread. Non-infectious diseases are not caused by pathogens and cannot spread between people.
How have Aboriginal and Torres Strait Islander Peoples traditionally used plants?
For food, medicine and treating or managing health problems.
Give an example of negative feedback involving temperature.
If your body temperature gets too high, you sweat to cool down.
What is a stimulus and what is a receptor?
A stimulus is a change in the environment. A receptor detects the change.
Which gland produces insulin?
Pancreas
Name 6 types of pathogens.
Prions, viruses, bacteria, fungi, protozoans and parasites.
Why can plant knowledge be useful for controlling disease?
Some plants contain compounds that may have medicinal or antimicrobial properties.
Negative feedback loops are a...
self-regulating system
Name the 5 senses and their organs.
Sight—eyes; hearing—ears; smell—nose; taste—tongue; touch—skin.
Why are reflex actions important?
They produce rapid, automatic responses that help protect the body from harm.
Which pathogens are non-cellular?
Viruses and prions
Give an example of an Australian plant traditionally used medicinally.
Tea tree, Eucalyptus, Emu Bush, Sticky Hop Bush, Sandpaper Fig
How is blood clotting positive feedback?
A wound activates platelets, which attract more platelets, causing the clot to grow until bleeding stops.
Difference between sensory and motor neurons?
Sensory neurons carry information to the CNS. Motor neurons carry instructions from the CNS to effectors.
Which gland is often called the "master gland"?
Pituitary gland
How can a pathogen cause infectious disease?
It enters the body, reproduces or multiplies, damages cells/tissues or disrupts normal body functions, causing illness.
Why is knowledge of plant medicines significant?
it underpins modern pharmaceutical discovery, preserves indigenous heritage, and provides accessible healthcare worldwide.