Module 3-Healthy Heart And Lungs Flashcards
What is blood composed of ?
Different types of cells floating in a liquid called plasma.
What does blood contain?
Red blood cells, white blood cells, and platelets
What do Red Blood cells do?
Transport oxygen and contain the pigment Haemoglobin
What are white blood cells part of?
The immune system
What do white blood cells do?
Destroy bacteria and foreign particles, i.e. viruses
What are the 2 main types of white blood cells called, and what do they do?
Phagocytes-carry out phagocytosis by engulfing in bacteria
Lymphocytes-produce specific antibodies which destroy viruses
What do Vaccines allow?
A dead or altered form of the foreign particle to be introduced
What do Platelets help with?
They help the blood to clot and reduce bleeding
What is the function of the heart?
To pump blood around the body
What is the heart made of?
Cardiac muscles
How long does the heart pump for?
It pumps continuously
How many chambers does the heart have and what are they called?
The heart has 4 chambers, the Left Ventricle, the Left Atrium, the Right Ventricle, the Right Atrium
What can a pulse be?
A health indicator
If a person is healthy, should there resting heart rate be low, or high?
Low, the healthier the person the lower there heart rate
Is having a high pulse rate healthy or unhealthy? And what are the results of it?
It’s is unhealthy and can lead to heart attacks or strokes
What low-tech methods are there for measuring your pulse rate?
A stop watch and fingertips, or a stethoscope
What high tech methods are there for measuring pulse rate?
A pulsometer or heart rate monitor linked to a computer
What do Arteries do?
Carry blood away from the heart
What do veins do?
Carry blood back to the heart
What do veins contain?
Valves
What do valves do?
Help prevent back flow of blood
What are Capillaries?
They are Small Vessels which form a network between arteries and veins
What is Oxygenated blood rich in?
Oxygen