Please enable JavaScript.
Coggle requires JavaScript to display documents.
What did I learn? Scientific knowledge Biology 2 (Body Systems (Some of…
What did I learn? Scientific knowledge Biology 2
Body organisations
There are more bacteria in/ on our body than human cells!
The level of organisation within our body is as follows:
1.
Cell (Smallest)
2.
Tissue
3.
Organ
4.
System
5
. Organism
Body Systems
The human body is made up of multiple systems that work together to form life
Body systems are an organised group of tissue that forms a particular function
These functions work with other systems in the body.
Some of the main systems of the body are:
Skeletal system
Muscular System
Nervous system
Circulatory system
Respiratory system
Digestive system
Body System Examples
1. Skeletal System
This system consists of our bones
Teaching opportunities
Can explore how many bones we have in our bodies
Naming the different joints in our bodies
Get the children to think of what is in our bodies that is protected by a skeleton E.G. Heart, lungs etc...
Creating Skeleton jigsaws, creating a Skeleton from pipe cleaners
The FUNCTION of the Skeletal system is to protect our bodies, support them and provide movement
Why is our heart and lungs not protected by solid bone like our brain? Because our lungs have to expand and retract!
2. Muscular System
The muscular system is a system containing different types of muscles (skeletal, smooth and cardiac)
Smooth Muscles:
Involuntary muscles
Found in the walls of internal organs
For example - Stomach, Oesophagus, Bronchi and in the walls of blood vessels
Cardiac Muscles:
Only found in the heart
Branching and interconnected
Junctions help synchronise contractions in heart beats.
Skeletal Muscles:
support the skeleton and help our bones move.
It is made from bundles of cells together to make muscles
The FUNCTION of the Muscular system is to permit movement of the body, maintains posture and circulates blood throughout the body
Teaching opportunities: Dissect a heart (or watch a video of this).
Body System Examples
3. Nervous System
Split into 2 parts:
CENTRAL Nervous System: Brain and Spinal Cord
PERIPHERAL Nervous System: Nerves connecting everything around the body to the CNS
Teaching opportunities
Looking at the difference between autonomic/ somatic functions E.G. doing a breathing contest or staring contest. We cannot beat these Autonomic functions.
One of the reasons we need to breathe out is to get rid of Carbon Dioxide, not take oxygen in!
Reaction time games E.G. Whack a rat!
Function:
Autonomic
– breathing, heart beat, blinking, control of bodily process
Somatic
– voluntary movements, senses
4. Circulatory System
Consists of: Heart, Blood vessels, blood
The FUNCTION of the Circulatory system is to transport oxygen, nutrients, warmth and waste around the body
Not only oxygen is transported by the blood but so is Carbon Dioxide
Teaching opportunities
Finding pulse points - Linking pulse to heart rate - E.G. what happens to our pulse when we do P.E.?
5. Respiratory System
Consists of the Lungs, Diaphragm, Brochii, Trachea
The Function of the Respiratory system is for gas exchange
Teaching opportunities
Measuring breathing rate
Measuring lung capacity / breath volumes
Effect of exercise – comparing resting and active breathing rates & effect on breathing volume
Working out recovery time.
6. Digestive System
Consists of: The Gastrointestinal Tract (Oesophagus,Stomach, Small Intestine, Large Intestine)
AND Liver, Gallbladder, Pancreas
The FUNCTION of the Digestive system is to break down food and Nutrient absorption
Digestion is:
PHYSICAL – teeth, stomach churning, intestine squashing
CHEMICAL – enzymes, acid
Teaching opportunities
Teeth - What is the difference between adult and children's teeth - Number/ shape/ purpose.
'Poo' Experiment - Making a model digestive system