Medical science Flashcards
Word equation for word equation for respiration
Glucose + Oxygen = Carbon Dioxide and Water
aerobic respiration
oxygen present
anaerobic respiration
without oxygen
importance of the respiratory system
move fresh air into your body while removing waste gases
What gases are exchanged?
oxygen and carbon dioxide
How are gases moved across the gas exchange surface?
diffusion
What is breathing?
the physical process of inhaling air into our lungs and exhaling air out of our lungs.
What happens to the intercostal muscles and the diaphragm that allow air to be inhaled and exhaled?
Inhaled=intercostal muscles expand , diagram contracts and moves downwards
exhaled=intercostal muscles contract, diagram relaxes and moves upwards
Carcinogenic
having the potential to cause cancer
Addictive
causing or likely to make someone addicted.
The importance of the circulatory system
carries oxygen and essential nutrients to all cells around the body in arteries and carries the waste products and carbon dioxide in veins
Arteries, veins & capillaries.
Arteries carry blood away from your heart. Veins carry blood back toward your heart. Capillaries, the smallest blood vessels, connect arteries and veins.
structure and function of plasma
carry substances around the body. 55% in blood.
structure and function of platlets
Form clots at damaged sites on the blood vessels to prevent blood loss and infection. 1%small bits of cells with no nucleus
structure and function of WBC
Protects body from infection. 1% the biggest type of blood cell with nucleus.
Structure and function of RBC
trnsports oxygen. 45% of blood, small round and hollow in centre, no nucleus.
What is respiration?
Process which cells release the energy they need for their life processes.
Occurs in the mitochondria
Diffusion
An area of high concentration to an area of low concentration, until reaches equilibrium.
what is gas exhange
Taking in oxygen and getting rid of carbon dioxide, this process takes place in the alveoli.
Breathing vs respiration
Breathing = physical process which moves air in and out of lungs
Respiration= chemical reaction where cells break down glucose to release energy.
Importance of blood
-we have five litres of blood, which takes oxygen to our body cells for respiration.
-blood carries waste products such as carbon and dioxide
-transports nutrients from our digestive system and even moves heat to control our temperature.