Body Systems Flashcards
What is the oesophagus?
The oesophagus is a long muscular tube that joins the mouth and the stomach.
Define Digestion
Digestion is the process of breaking down food into a useable form and making the nutrients available.
What is the epiglottis?
The epiglottis is a flap of skin that stops food entering your windpipe.
Where is the sphincters located?
The stomach.
What is the sphincters?
A sphincter separates the oesophagus from the stomach.
What is a small intestine?
Obsorbes nutrients paticles into the bloodstream (carbohydrates, fats and protien)
The small intestine is a long narrow tube.
How big is the small intestine?
6 metres long and 3cm wide
What is the lowest part of the small intestine?
The ileum.
Where is the Villi?
Small Intestine.
What is the Villi?
Microscopic ‘fingers’ that greatly increase the surface area of the wall of the small intestine.
Where is the Capillary?
Within each villis.
What is the Capillary?
A tiny blood vessel with walls only one cell thick.
Where is the Pancrease?
Connected to the digestive track.
What is the Pancrease?
It is an organ that produces pancreatic juice that contains chemicals that help break down carbohydrates, protein and fats.
Where is the liver?
Just above the stomach.
What is the liver?
It is the largest internal organ in our bodies and is a vital organ. It is responsible for over 500 chemical processes.
What is the Large intestine?
This is where water is reabsorbed into the body along with any nutrients that remain.
How big is the Large intestine?
1.5m long and 6-7cm wide
Where is the Large intestine?
Wrapped around all the other vital organs.
Faeces or stools are lumps of waste that are later expelled from the ______ .
Anus.
What is an anus?
A sphincter muscle
What is Bile?
A greenish liquid responsible for the mechanical breakdown of fats.
What is Aerobic respiration?
A process carried out by mitochondria in cells where oxygen is used to release energy from food.
Is breathing a chemical or physical process?
Physical process
What is breathing?
A physical process that draws air into your lungs and forces waste gases out of the lungs.
Your ___________ system extracts _______ from the air you breathe in.
Respiratory, Oxygen.
