Atrium: upper chamber, receive blood entering the heart, blood flows from atria to ventricles, receives blood from the body that is low in oxygen and high in carbon dioxide
Ventricle: Lower chamber, pump blood out of the heart
Blood pressure: the force with which blood pushes against the walls of your blood vessels
Blood contents: plasma, red blood cells, white blood cells, platelets
what affects the respiratory system can help our heart
Some cities are so polluted that fashion shows are presenting gas masks as a normalized accessory. This is a fashion show in Beijing.
On the way to the lungs, air passes through nose, pharynx, larynx, trachea, and bronchi
cigarettes, how are they made?
heart and lungs are a team
different types of exercise
Aerobic Exercise: Activity that raises your breathing and heart rate
Anaerobic Exercise: Intense physical activity that lasts for a few seconds, weights, push ups, sprinting
Types of muscle contractions
Isometric exercise: muscles contract but very little movement takes place, muscles become stronger
Isotonic exercise: contracting and relaxing muscles through the full range of a joint's motion, pull-ups, barbells
Isokinetic exercise: muscles contract constantly, sometimes machines help with the exercises in physical therapy
sometimes, the greatest risk TO OUR HEALTH comes from our pipeline system
Write something about yourself. No need to be fancy, just an overview.