Animal Tissues, Organs And Organ Syste, Flashcards
What do a goup of cells make up
Tissue
What do a group of tissues make up
Organ
What does a group of organs make up
Organ system
What is a tissue
A group of similar cells that work together to carry out a function
What is an organ
A group of different tissues that work together to perform a certain function
What is an organ system
A group of organs working together to perform a function
Give a specific example of a type of tissue and give its function
Epithelial
-covers inside the human gut
Give an example of a tissue that makes up an organ
The stomach is an organ and epithelial tissue lines the inside of the stomach
Give an example of a system that makes up organs
The digestive system is an organ system found in humans and other mammals
What does a organ system work together to make
Entire organisms
What is the function of tissues in the digestive system
Tissues form organs which form the digestuve system
What is the function of organs in the digestuve systme
Each organ in the digestuve system carries out a function that enable to body to cosume food
What do digestuve enzymes break down
Big molecules
Give 3 examples of big moleculesn
Starch, protiens and fats
Why do digestive enzymes break down big molecules
This is because they are too big to pass through the walls so they are broken down into smaller things like sugar
Pathway of blood through the heart
- deoxygenated blood from vena cava enter the right atrium
- flows to right vntricle
- carried through pulmonary artery to lungs where it becomes oxygentated
- the oxygenated blood returns to the heart through pulmonary vein
- enter left atrium then left ventricle and through the aorta to body
How are red blood cells adapted for their function
- large surface area for absorbing oxygen
- no nucleas to carry more oxygen
- contain red pigment called haemoglobin
How are white blood cells adapted for their function
- change shape to to gobble unwelcome microorganisms
- production of antibodies
- have a nucleas
How are platelets adapted for their function
- no nucleas
- very small
Name 4 risk factors that can cause a non communicable disease directly
- smoking can cause cardiovascular disease
- obesity can cause type two diabetes
- drinking two much alcohol can cause liver disease
- exposure to certain subastances or radiation
Some factors that can’t cause cardiovasular disease directly
-lack of exercsie and high fat diet cause high blood pressure which then lead to cardiovascular disease
How is CHD(Coronary Heart Disease ) caused
A build up of fatty deposits on the walls of the arteries around the heart
How can cardiovascular disease be treated?
- Stents
- Statins
Two advantages of using statins for cardiovascular disease
- reduces amount of bad cholestreol which reduces the amount of strokes, heart attacks and coronary heart disease
- increase the amount of good cholestreol and removal of bad
Two disadvantages of using statins for cardiovascular disease
- it takes a long time for them to acctually start havubg an effects
- can create headaches or some serious effects like liver failure or memory loss
What do stents do for the body
-Keep the arteries open for blood to flow through and a noral pace and not get clogged up
Two advantages of using stents for cardiovascular disease
- lowering risk of heart attack in people
- effective for long term and the recovery
Two dis advantages of using stents for cardiovascular disease
- risk of heart attack during the surgey of putting the stents in
- risk of blood clot during the surgery (thrombosis)
