filmov
tv
Human Defence Systems Against Pathogens | Health | Biology | FuseSchool
Показать описание
Human Defence Systems Against Pathogens | Health | Biology | FuseSchool
Pathogens are disease causing microorganisms, that our body has many defence mechanisms against.
The skin is the first physical barrier, providing a protective layer that is hard to penetrate. We also have sebaceous glands that secrete acids, thus preventing the growth of pathogens.
Pathogens can enter through our mouth, nose and eyes quite easily. Saliva, mucus and tears contain lysozyme enzymes that break down the cell wall of many bacteria.
Our respiratory system then has it's own defences from nasal hair to mucus to enzymes.
Hydrochloric acid inside our stomach kills many harmful microorganisms that enter in our food and drink.
Our blood also has a great defence system; blood contains platelets and fibrin which causes blood to clot and scabs to form, sealing off cuts from the outside. Our blood also has another fantastic weapon; white blood cells. These can hunt down and destroy pathogens, they can ingest them, and they can neutralise the effect of the pathogen toxins on the body.
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here:
Find all of our Biology videos here:
Find all of our Maths videos here:
Pathogens are disease causing microorganisms, that our body has many defence mechanisms against.
The skin is the first physical barrier, providing a protective layer that is hard to penetrate. We also have sebaceous glands that secrete acids, thus preventing the growth of pathogens.
Pathogens can enter through our mouth, nose and eyes quite easily. Saliva, mucus and tears contain lysozyme enzymes that break down the cell wall of many bacteria.
Our respiratory system then has it's own defences from nasal hair to mucus to enzymes.
Hydrochloric acid inside our stomach kills many harmful microorganisms that enter in our food and drink.
Our blood also has a great defence system; blood contains platelets and fibrin which causes blood to clot and scabs to form, sealing off cuts from the outside. Our blood also has another fantastic weapon; white blood cells. These can hunt down and destroy pathogens, they can ingest them, and they can neutralise the effect of the pathogen toxins on the body.
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here:
Find all of our Biology videos here:
Find all of our Maths videos here:
0:02:36
Human Defence Systems Against Pathogens | Health | Biology | FuseSchool
0:04:46
GCSE Biology - Immune System (Defences Against Pathogens) #38
0:03:54
Human Defence Systems Against Pathogens || Fuse School
0:02:24
Human Defence Systems Against Pathogens
0:08:56
Immune System
0:10:48
How The Immune System ACTUALLY Works – IMMUNE
0:05:23
How does your immune system work? - Emma Bryce
0:02:36
Human Defence Systems Against Pathogens Biology for All FuseSchool
0:01:16
Human Defence Systems
0:13:44
The Immune System: Innate Defenses and Adaptive Defenses
0:04:05
The Three Lines of Defense Against Pathogens | Biology
0:11:46
You Are Immune Against Every Disease
0:03:39
How We Fight Off Infections | Secrets Of The Human Body | BBC Earth Science
0:08:08
What Is the Immune System for Kids | Learn all about how the body fights off bad germs
0:06:10
How Does Your Immune System Works?| What Is Immune System? | The Dr Binocs Show | Peekaboo Kidz
0:09:23
Immune Response to Viruses: How the Body Reacts
0:14:04
Human Immune System - How it works! (Animation)
0:07:49
The Immune System Explained I – Bacteria Infection
0:09:04
Human Defence Systems for AQA 9-1 GCSE Biology and Trilogy (Combined Science)
0:07:30
Immunology in the skin
0:02:41
How your immune system works
0:06:00
Immune response against worms (helminths)
0:08:49
Immunity against viruses
0:02:36
Human defence system against pathogens & viruses
Комментарии