Homeostasis Flashcards
Define the term ‘Homeostasis.’
The body’s ability to maintain it’s internal environment within an optimal/preferable threshold.
Often to compensate for external or internal environmental changes.
E.g. blood glucose levels, temperature, pH of solutions.
What is the organisation of the body systems?
Cell > Tissue > Organ > System
Define the term ‘Tissue.’
Group of cells that share similar characteristics or specialisations.
Define the term ‘Organ.’
Collection of tissues, usually of different types, that synchronise to perform a particular function.
List the major systems in the body.
Respiratory + Cardiovascular Gastrointestinal + Renal Musculoskeletal Nervous + Endocrine Immune Reproductive
What is the ‘Equation of Life?’
Nutrients + O2 = Energy (ATP) + Waste (incl. CO2)
How does the Respiratory system contribute to the ‘cell factory?’
Acquires OXYGEN.
Removes CARBON DIOXIDE.
How does the Cardiovascular system contribute to the ‘cell factory?’
Delivers OXYGEN + NUTRIENTS to cells.
Removes WASTE from cells.
How does the Gastrointestinal system contribute to the ‘cell factory?’
Acquires NUTRIENTS.
Disposes of WASTE.
How does the Renal system contribute to the ‘cell factory?’
Disposes of WASTE.
How does the Musculoskeletal system contribute to the ‘cell factory?’
Sources NUTRIENTS.
Removes us from danger/protects from threat.
How does the Nervous system contribute to the ‘cell factory?’
Coordinates other systems.
How does the Endocrine system contribute to the ‘cell factory?’
Coordinates other systems.
Allows cells access to NUTRIENTS.
How does the Immune system contribute to the ‘cell factory?’
Protects us from infection.
How does the Reproductive system contribute to the ‘cell factory?’
Ensures the continuation of life.
