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BIO 169 Exam 3 Prep (Answered) 280 Questions and Correct Answers With Complete Verified Solution. 100% Correct, Updated Fall 2024/2025.$13.49
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BIO 169 Exam 3 Prep (Answered) 280 Questions
and Correct Answers With Complete Verified
Solution. 100% Correct, Updated Fall 2024/2025.
Volume of air in one quiet breath
the sum of the anatomical and pathological dead space
physiological dead space
______ and _______ insures air contacts mucus membranes
narrowness and turbulance
this rotates the corniculate and arytenoid cartilages, changes the pitch of sound
deep intrinsic muscles (infrahyoid group)
the amount of air left in the lungs after normal tidal expiration
functional residual capactiy
decreases friction, creates pressure gradient, prevents the spread of infection
the pluerae
pressure and volume are __________ proportional
inversely
most common type of lung cancer
squamous cell carncinoma
located at the end of the conducting division of the respiratory system
terminal bronchi
the _______ of lungs passively pushes air
elasticity
,causes cyanosis and tissue necrosis
hypoxia
air in the conducting division of airway (no gas exchange occurring)
anatomical dead space
spans the opening of c-shaped cartilagenous rings and adjusts air flow by expanding and contracting
the Trachealis
Device which measures ventilation
spirometer
Respiratory alkalosis causes _________ to which the body's response is ___________ (slow the
breathing down)
*speed of respiration changes pH
hypocapnia and hypoventilation
to sweep debris laden mucus into the pharynx
the mucociliary escalator
90% of CO2 transported in the blood as
carbonic acid
caused by drowning, aspiration, degenerative lung disease, carbon monoxide poisoning
hypoxemic hypoxia
Tidal volume x respiratory rate
minute volume
organs of the respiratory system
nose, pharynx, larynx, trachea, bronchi, lungs
vestibule
a dilated chamber inside ala nasi
-chamber with stratified squamous epithelium and guard hairs known as vibrissae
what divides nasal cavity into left and right chambers called fossae
nasal septum
the nasal conchae (superior, inferior, middle)
-folds of tissue on lateral wall of nasal fossa
-mucous membranes supported by spiral bones
, Meatuses
-narrow passages for air beneath conchae
Olfactory mucosa
lines roof of nasal fossa (cavity)
Respiratory mucosa
-lines rest of the nasal cavity with ciliated pseudostratified epithelium
Defensive role of mucosa
-mucus from goblet cells traps inhaled particles
-destroys bacteria using lysozyme
The function of the cilia in the respiratory epithelium
sweep debris laden mucus into pharynx to be swallowed
erectile tissue of inferior concha
-venous plexus that rhythmically fills with blood
-shifts airflow from one side of fossa to other 1-2 times per hour
-prevents drying
Spontaneous epistaxis
-nosebleed
-most commonly inferior concha
Nasopharynx
-pseudostratified epithelium
-dorsal to soft palate
-pharyngeal tonsil and auditory tubes
Oropharynx
-stratified squamous epithelium
-b/w soft palate and roof of tongue
-inferior as far as hyoid
-palatine and lingual tonsils
Laryngopharynx
-stratified squamous epithelium
-hyoid to cricoid cartilage
Larynx
-voicebox
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