B3 flashcards

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Year 11 Biology Flashcards on B3 flashcards, created by Anton Griffith on 15/01/2017.
Anton Griffith
Flashcards by Anton Griffith, updated more than 1 year ago
Anton Griffith
Created by Anton Griffith almost 8 years ago
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Resource summary

Question Answer
Biology B3 The Respiratory system
Inhaling The diaphragm contracts and flattens
Intercostal muscles Contracts
Ribs The raise and expand out
Pressure in lungs Decreases
Exhaling The diaphragm relaxes and domes
Intercostal mucscles Relaxes
Ribs Retreat down and inwards
Pressure in lungs Increases
circulatory system Labelling the heart
Which vessel contains veins and why? The veins contain vessels and its to prevent the back flow of blood.
3 Components of blood and their uses Red blood cells-Transports oxygen White blood cells-The bodies defence mechanism Platelets-helps blood clotting
what form is oxygen transported to tissues and how is it released? Oxygen combines with haemoglobin and forms oxyhaemoglobin that then gets split when it reaches the tissue
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