It says in my revision guide that a high CO2 concentration is detected by receptors in the carotid artery which sends a nerve impulse to the brain, which sends another signal to increase the rate of breathing... Out of interest, is the hypothalamus gland (involved in homeostasis) responsible for sending the signal to increase rate of breathing? And does the signal directly affect the heart or does it send a signal for the pacemakers to make the heart pump faster?
It says in my revision guide that a high CO2 concentration is detected by receptors in the carotid artery which sends a nerve impulse to the brain, which sends another signal to increase the rate of breathing... Out of interest, is the hypothalamus gland (involved in homeostasis) responsible for sending the signal to increase rate of breathing? And does the signal directly affect the heart or does it send a signal for the pacemakers to make the heart pump faster?
hmm are you sure that is the same syllabus? there is nothing in my book about carbon dioxide concentration except that we breath out co2 :P the topic after the kidneys in my book is reproduction haha :P If it is in the OCR gateway syllabus I'm screwed :L
hmm are you sure that is the same syllabus? there is nothing in my book about carbon dioxide concentration except that we breath out co2 :P the topic after the kidneys in my book is reproduction haha :P If it is in the OCR gateway syllabus I'm screwed :L
It should be in your revision guide- try the index It's a really small section though; here's the section in it from my revision guide... Edit: sorry about the rotation, I attached it from my phone
It should be in your revision guide- try the index It's a really small section though; here's the section in it from my revision guide... Edit: sorry about the rotation, I attached it from my phone
Looked all over my book, I only have the lonsdale ones and there was nothing about co2 concentration, I guess it's pretty straight froward though, ah I hate how different books have different information, it's ridiculous :L
Looked all over my book, I only have the lonsdale ones and there was nothing about co2 concentration, I guess it's pretty straight froward though, ah I hate how different books have different information, it's ridiculous :L
Yeah, it can be annoying- for example, it said in my revision guide that sand particles were smaller than clay particles when it's actually the opposite (I asked a friend who had a CGP book)
Yeah, it can be annoying- for example, it said in my revision guide that sand particles were smaller than clay particles when it's actually the opposite (I asked a friend who had a CGP book)
Yeah, it can be annoying- for example, it said in my revision guide that sand particles were smaller than clay particles when it's actually the opposite (I asked a friend who had a CGP book)