Biology C23

Biology C23

Published on 7 May 2021
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Transcript
00:00
Hi...
00:01
I´m Miss Brain
00:03
...and today we will be exploring the magical world of...
00:06
BLOOD
00:10
What is it?
00:12
What is it made of?
00:13
What is it for?
00:15
Well... Blood is a part of our body that carries oxygen, nutrients, minerals, etc... arround our body
00:20
How does it work?
00:21
It is build up of 4 main components...
00:24
Red Blood cells
00:27
They are the ones that transport oxygen from...
00:27
Almost 1/2 of our blood (by volume)
00:27
Our lungs
00:27
Our body tissues
00:32
White blood cells
00:35
They are an essential part of our inmune system...
00:35
They defend us against infections
00:35
Are 1% of our blood
00:35
They engulf Pathogens
00:35
Their antibodies bind to pathogens to help destroy them
00:35
Antitoxins neutralize any toxins
00:40
Platelets
00:46
They prevent you from dying for blood lose every time you cut yourself
00:47
Paper cut + No Platelets
00:48
=
00:51
AND...
00:53
PLASMA
00:58
1/2 OF THE BLOOD´S VOLUME
00:58
It is what makes the blood watery so that it can flow.
01:03
QUESTIONS?