Week of 10/22 to 10/26: Lung Health

10/22/2018

Week of 10/22 to 10/26: Lung Health

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lungs

Chapter 12

About the heart, we learned that the heart is constantly pumping the blood in our blood vessels to deliver materials such as oxygen.
The cardiovascular system transports wastes from your cells, when your cells break down glucose for energy, carbon dioxide is released as a waste product, your blood picks the carbon dioxide up and moves it to the lungs where we exhale it out.
Our blood contains cells to fight disease, the heart helps the cells move around the body

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

Right atrium: receives blood from the body that is low in oxygen and high in carbon dioxide
Left atrium: oxygen rich blood is carried from the lungs to the left atrium

Ventricle: Lower chamber, pump blood out of the heart

Left Ventricle: pumps oxygen rich blood away from the heart
Right ventricle: pumps oxygen poor blood to the lungs

Blood vessels:

Arteries: blood vessels that carry blood away from the heart, carry oxygen righ blood, except for the artery that carries oxygen poor blood from the heart to the lungs. Aorta is the largest artery.
Capillaries: branch out from arteries, they release oxygen and dissolved nutrients
Veins: carry blood to the heart, receive less pressure from the heart pump

Blood pressure: the force with which blood pushes against the walls of your blood vessels

normal range: 90/60 to 119/79
Low Blood Pressure: lower than 90/60
High Blood Pressure: over 139/89

Blood contents: plasma, red blood cells, white blood cells, platelets

Plasma: liquid component, water with nutrients, hormones, and salts dissolved, also carries waste products such as urea to the kidneys fr removal from the body
Red Blood Cells: cells that carry oxygen from the lungs to the rest of our body, hemoglobin is an iron-containing substance that carries oxygen
White Blood Cells: help protect you against disease, larger than red blood cells, help your body resist diseases
Platelets: blood clotting

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?

popcorn lung

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