Ball State University ANAT 201 Essien Exam 6 | Questions And Answers Latest {2024-
2025} A+ Graded | 100% Verified
respiratory system - a system of organs, functioning in the process of gas exchange between the body
and the environment, consisting especially of the nose, nasal passages, nasopharynx, larynx, trachea,
bronchi, and lungs
functions of the respiratory system - gas exchange, regulation of blood pH, voice production, olfaction,
protection, helps create pressure gradient for flow of lymph and venous blood, and holding breath while
contracting abdominal muscles helps to expel abdominal contents during urination, defecation, and
birth
organs of the respiratory system - nose, pharynx, larynx, trachea, bronchi, lungs
alveoli - air sacs in the lungs
divisions of the respiratory system - conducting division and respiratory division
conducting division - passages for airflow, nostrils to bronchioles
** w/o exchange of gases
respiratory division - consists of alveoli and other gas exchange regions
pharynx - throat, the common passageway for food from the mouth and for air from the nose
- nasopharynx, oropharynx, laryngopharynx
, nasopharynx - pseudo stratified epithelium
oropharynx - stratified squamous epithelium
laryngopharynx - stratified squamous epithelium
larynx - - voice box; passageway for air moving from pharynx to trachea; contains vocal cords
- keeps food out of the airway with epiglottis
lower respiratory tract extends from the _______ to the ________ - trachea, pulmonary alveoli
trachea - windpipe
trachea wall - basal stem cells
- mucocilary escalator -----> mechanism for removing inhaled debris
bronchi - trachea branches into the right and left primary bronchus
right primary bronchus - - supplies the right lung
- larger and and at a steeper angle
- creates a more likely pathway for foreign objects
left primary bronchus - supplies left lung
bronchial tree - branched airways that lead from the trachea to the microscopic air sacs called alveoli
bronchial tree consists of ________, __________, and _________ - main (primary) bronchi, secondary
(lobar) bronchi, and segmental (tertiary) bronchi
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