Systems Flashcards
What does the cardiovascular system consist of?
The heart (cardio), blood and blood vessels (vascular)
What does the cardiovascular system do?
It works to get blood around the system. Blood carries oxygen which keeps our bodies alive. Blood vessels bring blood back to the heart, arteries take the blood away.
What is the difference between your blood pressure and your pulse?
Your pulse is how many time your heart ‘pumps’ blood around the body with each beat.
Your blood pressure is the force of blood against the artery walls. It’s recorded as the heart beats (systolic pressure) and as the heart relaxes between beats (dialostic pressure).
What is coronary heart disease?
When the arteries become narrowed
What is angina?
A lack of oxygen to the heart muscle becAuse of poor blood flow.
What does the nervous system do?
Controls the processes of the body
What are the two main parts of the nervous system?
The central nervous system (brain and spinal cord) and the peripheral nervous system (attaches the central nervous system to the rest of the body).
What is the Autonomic Nervous system?
Controls automatic systems such as breathing and digestion.
What does the respiratory system do?
It is responsible for the exchange of gases to and from our bodies.
What does alveoli mean?
Air sacs
What is the purpose of the digestive system?
To breakdown food so that it can be used by cells for energy, growth and repair.
What happens when food enters the body?
- Travels down our oesophagus into the stomach
- The stomach valve opens allowing food in
- Acids in the stomach break the food down into thick soup
- Soup travels into small intestine where nutrients are absorbed through the walls and into the blood stream
- Anything left goes into large intestine where rest of nutrients and water are absorbed
- Anything left over travels into rectum and stored there until ready to poo
What is the skeletal system made up of?
Bones, ligaments and tendons
What does the skeletal system do?
It provides structure for the body and protects organs.
How do the skeletal and muscular systems work together?
They help the body move at the joints