BIOL 222 Study Guide - Quiz Guide: Renal Blood Flow, Proprioception, Urinary System

83 views9 pages
Department
Course
Professor

Document Summary

Upper respiratory system: nose, nasal cavity, paranasal sinuses, pharynx. Lower respiratory system: larynx, trachea, lungs (bronchi, bronchioles, alveoli) Respiratory tract: passageways that carry air to and from the exchange surfaces of the lungs. Conducting portion (ciliated)- entrance of nasal cavity and extends through pharynx, larynx, trachea, bronchi, larger bronchioles. Respiratory portion (smooth muscle)- smallest bronchioles, alveoli (air filled pockets w/in lungs where gas exchange occurs. Respiratory mucosa: mucus membrane lining the conducting portion of the tract. Consists of epithelial layer and lamina propria (connective tissue) Goblet cells (glandular epithelial cells) produce mucins that dissolve in water to become mucus. Nasal cavity and upper pharynx: pseudostratified ciliated columnar. Lower pharynx: stratified squamous (conduct air to larynx, convey food to esophagus) Septal cells (type ii): intersped w/ squamous cells, secrete surfactant. Surfactant: decrease surface tension and help prevent alveolar collapse during exhalation. Thoracic cavity: walls are rib cage, floor is diaphragm. One surrounds each lung lined by a serous membrane (pleura)

Get access

Grade+
$40 USD/m
Billed monthly
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
10 Verified Answers

Related Questions