Download Respiratory System

Respiratory
System
By Natasha Pommala, Ashley
Newland, Janiya Edwards, Lily Sims
Organs in the respiratory system
nostrils
sinuses
hard palette
Esophagus
larynx
cartilage
trachea
rib cage
bronchioles
lungs
soft palettes
diaphragm
nasoph arynx
capillaries
epiglottis
alveoli
glottis
Organ Functions in the system
Nose
The nose is the primary upper respiratory organ in which air enters into and exits from the body. Mucus lines the
nasal cavity and traps bacteria and foreign particles that enter in through the nose. This is one of the body’s first lines
of defense.Air that passes through is humidified.
Pharynx
Air can enter into the lungs through the mouth. The pharynx is a tube structure, that allows air to pass from the
mouth to the lungs.
Larynx
From the pharynx, air enters into the larynx, also called the voice box. The larynx has two main functions: a
passageway for air to enter into the lungs, and a source of vocalization.
Cont.
Lungs
The lungs are spongy, air-filled organs located on both sides of the chest cavity. Respiration is the primary function of
the lungs.
Alveoli
Sacs at the end of the respiratory tree. The exchange of oxygen and carbon dioxide gases occurs at the alveolar level.
The alveoli inflate and deflate.
Diaphragm
Contraction of the diaphragm causes the chest to expand. This happens during inhalation. During exhalation, the
release of the diaphragm causes the chest to contract.
Bronchi
The bronchi allow the passage of air to the lungs.
Overall Function of the system
The function of the Respiratory system is to take in oxygen and expelling
carbon dioxide. First, it goes down to trachea and divides into air passages
called bronchial tubes. When the bronchial tubes pass throughout the lungs
they divide into air passages called bronchioles. The alveoli are surrounded
by blood vessels called capillaries. After absorbing the oxygen, it is then
carried to the heart and carry throughout the body. Carbon dioxide is
produced and absorbed into the blood.
Functions of individual cells, enzymes, or hormones if pertinent
Cilia-Are closely packed cells that can go back and forth rhythmically. This motion removes things such as
debris,bacteria,viruses and ect… out of mucus that lines your respiratory walls toward your nose and mouth.
The lining of your airway contains mucus which is meant to moisturize the air you breathe.They are
microscopic hairs that are inside the internal skeleton along the length of a cilium which is made of nine
columns. It sweeps out junk and unwanted stuff out of your airway because lots of things can get stuck in
there if not removed it can affect your breathing.
Goblet - are present in our bodies for performing special mucus secretion function. The main function of
the goblet cells is to store mucin which mucin when dissolved in water forms mucus. Goblet cells are
scattered among other cells in the epithelium mostly in the respiratory and digestive tract.
Enzymes- removes hydrogen from a molecule and also catalyses the reaction to remove carbon dioxide
from molecules.
How does it interact with two other systems
❖ Circulatory System
➢ The respiratory and the circulatory work together to circulate blood and oxygen
throughout the body. They also have air move in and out through the bronchi, trachea,
bronchioles. The blood moves through the pulmonary arteries and veins that connect the
heart.
❖ Digestive System
➢ The respiratory system and the digestive system work together to break down food and
move the tract
THE END
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