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cartilaginous structure connecting the pharynx and trachea at the level of the cervical vertebrae; surrounds and protects the glottis and prevents foreign objects from entering the trachea; houses vocal cords; conducts air in and out of trachea through the glottis; composed of a framework of muscles and cartilages bound by elastic tissue
structure that conducts air in and out of the trachea through a narrow opening; opening just below vocal cords, triangular slit over trachea; closes to keep food and liquid from entering trachea; open during breathing
prominent in males; known as the laryngeal prominence aka Adam's apple; largest cartilage of the larynx
folds of muscle and connective tissue with a mucous membrane covering; makes sound by air forced through the glottis between true _____ _____ causing them to vibrate from side to side making sound waves
the turning of sounds into words by altering the shapes of the pharynx and oral cavity and using the tongue and lips
false vocal cords
muscles responsible for controlling tension in the vocal folds and sealing of the glottis during swallowing
when mucous membrane becomes inflamed and swollen due to infection or vapors; vocal cords cannot vibrate freely so person is unable to speak; mild or can completely obstruct airway
a laryngeal cartilage, flap-like structure that allows air to enter larynx; projects superior to glottis and forms lid over it to keep food from going into larynx; upright during breathing
when food or liquids get too close to the entrance of the glottis it triggers the ______ ______
flexible tube extending down in front of the esophagus and into the thoracic cavity where it splits
trachea is lined with ________ mucous membrane that entraps particles and moves up toward the pharynx where mucus can be swallowed
tracheal wall has about 20 rings, which keep trachea from collapsing and blocking airway, made of of _______ ______ with smooth muscle and connective tissue fill the gap between the ends of the rings
complete rings of trachea, allow esophagus to expand as food moves through it to the stomach
consists of branched airways leading from the trachea to the microscopic air sacs (alveoli) in the lungs
primary bronchi travel to a groove along the medial surface of the lung called the _____ of the lung; it provides access for entry to pulmonary vessels, nerves, and lymphatics; attached to mediastinum by dense connective tissue, fixes positions of major nerves, vessels, and lymphatic vessels
each primary bronchus divides into ________ _______, which branches into finer tubes; goes to each lobe of lungs so the right lung as 3 and left lung has 2
varying _________ of bronchioles controls resistance to airflow and distribution of air in lungs
alveolar ducts end at _______ ______, common chambers connected to multiple individual alveoli
soft, spongy, cone-shaped organs in thoracic cavity; have distinct lobes divided by deep fissures
______ and some large blood vessels suspend each lung in the cavity; enter lung on its medial surface
when visceral pleura folds back to become the _______ _______ and form a double walled sac; forms part of mediastinum and lines inner walls of thoracic cavity
potential space between visceral and parietal pleurae; no significant space actually exists; contains think film of serous fluid called pleural fluid
lubricates adjacent pleural surfaces, reducing friction as they move against one another during breathing
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