Structure Flashcards
structure of the respiratory system??
Larynx Trachea Bronchi Bronchioles Alveoli Diaphragm Intercostal muscles Pleural membrane
What is the larynx?
More commonly referred to as the voice box and is made up of tissue called cartilage; it connects the pharynx to the trachea in the neck. It consists of 3 parts: supraglottis, glottis and subglottis. Main functions are to protect the trachea during swallowing, to enable the air that is breathed in to reach the lungs and to enable sounds to be produced for speaking/singing.
what is the trachea?
More commonly known as the windpipe, the trachea connects the mouth and nose to the lungs. Air passes through the trachea as air is inhaled and exhaled.
What is the bronchi?
The left and right bronchi carry air to the lungs. When breathing, air first travels from the mouth or nose through to the larynx and then the trachea which then carries the air to the bronchi. What
What are the bronchioles?
Bronchi then branch out into much smaller passageways of air to the lungs called bronchioles. At the end of these there are tiny air sacs called alveoli.
What is the alveoli?
These are located within the lungs, at the end of the bronchioles, and consists of tiny air sacs through which oxygen from the air gets into the blood and waste carbon dioxide from the blood is removed out into the air.
What is the diaphragm?
A muscle located at the bottom of the lungs that separates the chest from the abdomen; it is central the the respiratory system.
What are the intercostal muscles?
A group of muscles located between the ribs that are part of the respiratory system and facilitate the breathing process. These are two types of intercostal muscles: internal (these muscles relax) and external (these muscles contract).
What is the pleural membrane?
Cover the surface of the lungs. The have They have two layers: an outer layer (lines the inside of the rib cage and diaphragm) and an inner layer (lines the lungs) ; the space between the two layers contains fluid secreted by the pleural membranes thus following the lungs to move easily during respiration.
