Respiratory System Flashcards
Primary Functions
To provide oxygen to body tissues for cellular respiration
Remove the waste product carbon dioxide
Help to maintain acid-base balance
Secondary Functions
Sensing odors
Speech production
Straining (during childbirth or coughing)
Conducting Zones
Moves air in/out of lungs
Respiratory Zone
Moves gases in/out of the blood
Nose
The major entrance and exit for the respiratory system
Pharynx
The human pharynx is the part of the throat situated immediately posterior to the mouth and nasal cavity, and superior to the esophagus and larynx
Larnynx
The larynx is the cartilaginous structure that connects the pharynx to the trachea and helps regulate the volume of air that enters and leaves the lungs. The larynx is also involved in sound production and protecting the trachea against food aspiration.
Trachea
The trachea (windpipe) is a tube that connects the pharynx or larynx to the lungs, allowing the passage of air
Alveolar Duct
An alveolar duct is a tube composed of smooth muscle and connective tissue, which opens into a cluster of alveoli
Aveolus
An alveolus is one of the many small, grape-like sacs that are attached to the alveolar ducts
Alveolar Sac
An alveolar sac is a cluster of many individual alveoli that are responsible for gas exchange
Boyle’s Law Formula
p1V1 = p2V2
pV=k
p=k/V
Boyle’s Law Test Explanation
Pressure and volume are inversely related
Inspiration
air enters the body and the thoracic cavity expands, external intercostal muscles contract, diaphragm contracts
Experation
air enters the body and the thoracic cavity reduces, external intercostal muscles relax, diaphragm relaxes