Respiratory Quiz Flashcards
Epiglottis
A flap of hyaline cartilage that opens to allow things into trachea
Parietal pleura
The outer serous membrane associated with each lung; attached to inner thoracic wall
Visceral pleura
A serous membrane that covers the outer surface of each lung
Thyroid cartilage
The largest pieces hyaline cartilage of the larynx (Adam’s apple)
Fauces
The opening into the pharynx from the oral cavity
Eustachian tube
(Auditory tube) an epithelium lined tube that extends between the pharynx and the middle ear
Surfactant
Lipid-like molecule secreted by alveoli so they don’t stick together
Tonsils
Part of lymphatic system, plays a role in immune response, has 3 parts: pharyngeal, palatine, lingual
Pharynx
Passageway for food and air, three parts: nasopharynx, oropharynx, laryngopharynx
Pulmonary ventilation
Breathing
Diaphragm
Main muscle in breathing, divides thoracic cavity from abdominopelvic cavity
Nares
Nostrils
Adenoids
Mass of enlarged lymphatic tissue between the back of the and the throat
Glottis
The opening into the larynx from the pharynx
Name the 3 functions of the respiratory system
- Takes in 02 for transport
- Expels CO2 from cellular metabolism
- Regulates acid-base balance
Functions of the nose
- Olfaction
- Passageway for air
- Filters air
- Warms air
- Phonation
Larynx
Voice box/ talking
Trachea
Air passageway
Bronchi function
Breathing
Alveoli
Air sacs, breathing
Name the 4 pairs of sinuses
Frontal, maxillary, ethmoidal, sphenoidal
3 factors that influence the rate and depth of breathing
- Chemical changes in blood
- Degree of stretch of lungs
- Person’s mental state
5 characteristics of alveoli
- Air sacs
- Microscopic
- 300 million/2 lungs
- Simple squamous tissue
- Gas
3 respiratory centers in the brain
- Medullary rhythmicity– establishes normal breathing rhythm
- Apneustic area– controls breath holding
- Pneumotaxic area– regulates brain’s coordination of respiration
What prevents the total collapse of alveoli after expiration?
The pleural cavity has a slightly lower pressure then the lungs, so alveoli stay slightly inflated
Trace the flow of air from outside the body to the blood stream
Nose, nasal cavity, pharynx, larynx, trachea, primary bronchi, secondary bronchi, tertiary bronchi, bronchioles, alveolar duct, alveoli, blood
