HUMB1000 Lecture Notes - Lecture 4: Nasal Cavity, Bronchiole, Bronchus
19 Jun 2018
School
Department
Course
Professor
Respirator
y rate
Number of breaths taken per minute
Minute
ventilation
total amount of air moved into and out of the
respiratory system each minute (tidal volume X
respiratory rate) • E.g. 500 ml X 12 breaths per minute =
6000 ml per minute
Anatomic
dead
space
space formed by nasal cavity, pharynx, larynx, trachea,
bronchi, bronchioles and terminal bronchioles.
Alveolar
ventilation
volume of air available for gas exchange per minute
Glossary
Sunday, 18 March 2018
4:52 PM
Respiratory Page 1
Respiration
1.
• Ventilation – Movement of air in and out of lungs
• External respiration - Gas exchange between lungs
blood
• Transport of respiratory gases
• Internal respiration – Gas exchange between blood
tissues
Regulation of blood pH
2.
Voice production
3.
Smell (olfaction)
4.
Protection
5.
Function of Respiratory System
Sunday, 18 March 2018
2:45 PM
Respiratory Page 2
Upper respiratory tract
•
Lower respiratory tract- trachea, bronchi, lungs
•
Structural classification
Conducting zone- respiratory passages from nose to bronchi in lungs, humidifies air.
•
Respiratory zone (in lungs)- exchange of air between lungs and blood.
•
Functional classification
Divisions
Sunday, 18 March 2018
2:47 PM
Respiratory Page 3
Document Summary
Number of breaths taken per minute total amount of air moved into and out of the respiratory system each minute (tidal volume x respiratory rate) e. g. 5(cid:1004)(cid:1004) (cid:373)l x (cid:1005)(cid:1006) breaths per (cid:373)i(cid:374)ute = 6000 ml per minute space formed by nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and terminal bronchioles. volume of air available for gas exchange per minute. Respiration: ve(cid:374)tilatio(cid:374) movement of air in and out of lungs, e(cid:454)ter(cid:374)al respiratio(cid:374) - gas exchange between lungs blood, tra(cid:374)sport of respirator(cid:455) gases, i(cid:374)ter(cid:374)al respiratio(cid:374) gas exchange between blood tissues. Conducting zone- respiratory passages from nose to bronchi in lungs, humidifies air. Respiratory zone (in lungs)- exchange of air between lungs and blood. Stratified squamous epithelium, sweat and sebaceous glands and hair follicles. Septum separates nasal cavity into left and right parts. Epithelium of concha (and most of nasal cavity) is pseudostratified ciliated columnar epithelium. Choana - narrowing at posterior aspect of nasal cavity.
