Respiratory system and circulatory system

is a network of organs and tissues that work together to take in oxygen and expel carbon dioxide into the body.

Breathing System

Internal respiration

Between the blood and body cells

External Respiration

Between the lungs and the environment

The entrance of air in the body

Mouth and nose

A flag of cartilage at the roof of the tongue that closes during swallowing to avoid food going

through the windpipe.

Epiglottis

Passage way for both food and air

Pharynx

Larynx

Vocal chords

Known as the windpipe

Trachea

tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and the bloodstream due to the capillaries surrounding them.

Alveoli

Capillaries

Very tiny blood vessels that help connect the arteries and veins and facilitate the exchange of certain elements between the blood and tissues.

The small air passage that branch out into the segments of each lungs are called

Bronchioles

Where does gas exchange happens

Alveoli

Component of blood that helps fight diseases

White blood cell

Is a contagious infection of the upper respiratory tract

Common cold

A common lung infection caused by germs, such as bacteria, viruses, and fungi.

Pneumonia

A disease caused by smoking

Lung cancer

is made out of cardiac muscle and

is divided into four chambers

Heart

Arteries

Carry oxygenated blood

Carry deoxygenated blood

Veins

Responsible for the exchange of oxygen and carbon dioxide in the lungs.

Pulmonary circulation

The most extensive type of circulation in the human body

Systemic circulation

Supplying the heart muscle itself with blood.

Coronary circulation