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Class notes Anatomy and Physiology (NUR1101)

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The content is all about the important information from the 15 chapters of the book.

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  • December 19, 2023
  • 8
  • 2022/2023
  • Class notes
  • Jody benedicto
  • All classes
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CHAPTER 15: RESPIRATORY SYSTEM
RESPIRATION NASOLACRIMAL DUCTS
Respiration includes the following processes:
 carry tears from eyes
1. Ventilation, or breathing, is the movement of air  open into nasal cavity
into and out of the lungs
2. The exchange of oxygen (O2) and carbon FUNCTIONS OF THE NOSE
dioxide (CO2) between the air in the lungs and  Filters
the blood  Airway for respiration
3. The transport of O2 and CO2 in the blood  Involved in speech
4. The exchange of O2 and CO2 between the blood  Olfactory receptors
and the tissues.  Warms air
 Sneezing dislodges materials from nose
FUNCTIONS
PHARYNX
1. Respiration  a common passageway for the respiratory and
2. Regulation of blood pH digestive systems
3. Voice Production
4. Olfaction NASOPHARYNX
5. Innate Immunity  takes in air
UPPER RESPIRATORY TRACT OROPHARYNX
 External nose
 Nasal cavity  extends from uvula to epiglottis
 Pharynx  takes in food, drink, and air

RESPIRATORY SYSTEM LARYNGOPHARYNX
 extends from epiglottis to esophagus
 food and drink pass through
UVULA
 “little grape”
 extension of soft palate
PHARYNGEAL TONSIL
 aids in defending against infections
NOSE NASAL CAVITY AND PHARYNX
EXTERNAL NOSE
 Composed of mainly of hyaline cartilage
NASAL CAVITY
 extends from nares (nostrils) to choane
 choana: openings to pharynx
 hard palate is its roof
PARANASAL SINUSES
 air filled spaces within bone
 open into nasal cavity
 lined with mucous
CONCHAE
 on each side of nasal cavity
 increase surface area of nasal cavity
 help in cleaning, humidifying, warming of air

, CHAPTER 15: RESPIRATORY SYSTEM
LOWER RESPIRATORY TRACT LARYNGITIS
 Larynx –lower portions of
 Trachea  inflammation of vocal folds
 Bronchi  caused by overuse, dry air, infection
 Lungs




LARYNX
 Located in the anterior throat and extends from
 the base of the tongue to the trachea
 Consists of cartilages TRACHEA
 Windpipe
THYROID CARTILAGE  Consists of 16 to 20 C-shaped pieces of cartilage
 largest piece of cartilage  Contains cilia pseudostratified columnar epi.
 called Adam’s apple  Smoking kills cilia
 Coughing dislodges materials from trachea
EPIGLOTTIS  Divides into right and left primary bronchi
(lungs)
 piece of cartilage
 flap that prevents swallowed materials from BRONCHI
 entering larynx  Divide from trachea
 Connect to lungs
VOCAL FLORDS/CORDS
 Lined with cilia
 source of voice production  Contain C-shaped pieces of cartilage
 air moves past them, they vibrate, and sound is
LUNGS
produced
 Primary organ of respiration
 force of air determines loudness
 Cone shaped
 tension determines pitch
 The base rests on the diaphragm
 The apex extends above the clavicle
 Right lung has 3 lobes
 Left lung has 2 lobes
 Contains many air passageways (divisions)
LUNG AIRWAY PASSAGES
1. Primary bronchi
2. Lobar (secondary) bronchi
3. Segmental (tertiary) bronchi
4. Bronchioles
5. Terminal bronchioles
6. Respiratory bronchioles
7. Alveolar ducts
8. Alveoli
a. Structures become smaller and more
b. numerous from primary bronchi to
alveoli

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