Year 7 science

Register

Sign up to get unlimited access to thousands of study materials. It's free!

Access to all documents

Join milions of students

Improve your grades

Email

By signing up you accept Terms of Service and Privacy Policy

Register

Sign up to get unlimited access to thousands of study materials. It's free!

Access to all documents

Join milions of students

Improve your grades

Email

By signing up you accept Terms of Service and Privacy Policy

Science revision Intercostal muscles relepe- Breathing = Ventilation Breathing & Respiration we need to inhale Gehalahon Ribs more down and in diappram for Arobic respiranoggen rexeneile carbon diosei de RESPIRATION - exchale Garben diescide Chemical reactions oxygen & glocusgit? Carbon dicade twater reactants products cas ехспалс gas exch chang I Lungs Oxygen BREATHING carbon diosende ·can Contract gregas is exchanged for another sorts Called bas exchange Muscle tissues are made out of musele cells then terunget short and fath loenganalisi, eandean shape and length. anchange - Lots of mitochonang form arobic respiration to release fenergy to contract Irelage cyts plasm contains long strands, allowing Reglagood white blood Plasma to the haedr 2 trobing badu Vena Care, blood -fights infect wid on by prod -Trans over I blood using ucing special transported nut haemoglobin protiens, Nobuckeys called annbod large surface ies arde Right Atrium Aorta -Plasing is the lig blood Right Ventricle nents and waste products around the body by them dissolniba in the plasma Left Atrium Left Ventricle Regand ite blood cells are made mche blood cetts Marra Talles blood to the blood glug 1 Deoreugenated blood Mores into the heart na the vena cara 2. It moves to the night atrium 3 The night atrium contrac pushing they deceygenated blood into the ventricle 4. The right ventrice then Coon tracts, Giteshing the To lood in the ger lungs to collect oxyg Oxygenated blood moves from the lungs into the left atrium. The left Amum contracts, pushing beygenated blood into the the left ventricle contracts pushing osey saygenated Daely How is the heart adapted to its function? The wall of the left ventricle is thicker than the wall of the night rentricle The left ventricle pumps blood around the body, so it needs to creates higher blood pressure. Right ventricle pumps Blobel to the lungs ungs (why?) Pulse rate •The number of contractans fell...

Can't find what you're looking for? Explore other subjects.

Knowunity is the #1 education app in five European countries

Knowunity has been named a featured story on Apple and has regularly topped the app store charts in the education category in Germany, Italy, Poland, Switzerland, and the United Kingdom. Join Knowunity today and help millions of students around the world.

Download in

Google Play

Download in

App Store

4.9+

Average app rating

13 M

Pupils love Knowunity

#1

In education app charts in 11 countries

900 K+

Students have uploaded notes

Still not convinced? See what other students are saying...

iOS User

I love this app so much, I also use it daily. I recommend Knowunity to everyone!!! I went from a D to an A with it :D

Philip, iOS User

The app is very simple and well designed. So far I have always found everything I was looking for :D

Lena, iOS user

I love this app ❤️ I actually use it every time I study.