Human TissuesHuman Tissues

Noadswood Science, 2012Noadswood Science, 2012

Human TissuesHuman Tissues To be able to identify, describe and explain the role of human tissues, To be able to identify, describe and explain the role of human tissues,

organs and organ systemsorgans and organ systems

Friday, April 21, 2023Friday, April 21, 2023

OrgansOrgans What is an What is an organorgan??

Where do we find organs?Where do we find organs?

Can you name all the organs Can you name all the organs found in the human body (do found in the human body (do you know where they are you know where they are located in the body)?located in the body)?

OrgansOrgans A group of similar cells is called a A group of similar cells is called a tissuetissue

A group of A group of different tissuesdifferent tissues is called an is called an organorgan

An organ is made from a group of different tissues, which all work together to do a An organ is made from a group of different tissues, which all work together to do a particular jobparticular job

Both animals and plants have organs, e.g.Both animals and plants have organs, e.g. HeartHeart LungLung StomachStomach BrainBrain KidneyKidney LiverLiver

OrgansOrgans Each organ has a very specific job to do. The organs in the human body do Each organ has a very specific job to do. The organs in the human body do

the following: -the following: -

Brain – controls our whole bodyBrain – controls our whole body Liver – detoxification for the body (cleans it out)Liver – detoxification for the body (cleans it out) Kidneys – waste filtration (remove urea and help adjust water content Kidneys – waste filtration (remove urea and help adjust water content

in blood)in blood) Bladder – collects waste material and stores it, until it is full enough to Bladder – collects waste material and stores it, until it is full enough to

be emptied through the urethrabe emptied through the urethra Heart – pumps blood throughout the bodyHeart – pumps blood throughout the body Lungs – transport oxygen into the body, and carbon dioxide out from Lungs – transport oxygen into the body, and carbon dioxide out from

the bodythe body Gut – digests food (absorbing the energy and nutrients from it)Gut – digests food (absorbing the energy and nutrients from it)

Organ SystemsOrgan Systems Organs can work together to perform specific jobs – these are called organ Organs can work together to perform specific jobs – these are called organ

systemssystems

Circulatory system (heart; blood vessels; blood)Circulatory system (heart; blood vessels; blood) Respiratory system (lungs; trachea)Respiratory system (lungs; trachea) Digestive system (mouth; stomach; intestines; liver; anus)Digestive system (mouth; stomach; intestines; liver; anus) Nervous system (brain; spinal cord; nerves)Nervous system (brain; spinal cord; nerves) Excretory system (kidneys; urinary bladder; urethra)Excretory system (kidneys; urinary bladder; urethra) Reproductive system (ovaries; testes)Reproductive system (ovaries; testes) Muscular system (skeletal muscles)Muscular system (skeletal muscles)

Leaf canopyLeaf canopy Root systemRoot system FlowerFlower

BodyBody Have a look at the worksheet of the human skeletonHave a look at the worksheet of the human skeleton Stick this sheet in, and then using the other sheet cut out the different Stick this sheet in, and then using the other sheet cut out the different

organs and stick the organs and stick the tabtab of these organs onto your skeleton of these organs onto your skeleton

Finally, answer the questions on the sheetFinally, answer the questions on the sheet

Organ FunctionOrgan Function Brain – controls our whole bodyBrain – controls our whole body Liver – detoxification for the body (cleans it out)Liver – detoxification for the body (cleans it out) Kidneys – waste filtration (remove urea and help adjust water content Kidneys – waste filtration (remove urea and help adjust water content

in blood)in blood) Bladder – collects waste material and stores it, until it is full enough to Bladder – collects waste material and stores it, until it is full enough to

be emptied through the urethrabe emptied through the urethra Heart – pumps blood throughout the bodyHeart – pumps blood throughout the body Lungs – transport oxygen into the body, and carbon dioxide out from Lungs – transport oxygen into the body, and carbon dioxide out from

the bodythe body Gut – digests food (absorbing the energy and nutrients from it)Gut – digests food (absorbing the energy and nutrients from it)

Blood system: heartBlood system: heart Breathing system: lungsBreathing system: lungs Urinary (cleaning) system: bladder; kidneysUrinary (cleaning) system: bladder; kidneys Digestive system: gut; liverDigestive system: gut; liver

SummarySummary Large multicellular organisms are made up of organ Large multicellular organisms are made up of organ

systemssystems

Similar cells are organised into tissues – a group of Similar cells are organised into tissues – a group of similar cells that work together to carry out a particular similar cells that work together to carry out a particular functionfunction

Tissues are organised into organs performing a certain Tissues are organised into organs performing a certain functionfunction

Organs are organised into organ systems Organs are organised into organ systems