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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   Add to cart

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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.

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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.

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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

tidal volume

warms, humidifies, cleanses air; detects odor, voice amplification

the nose

little horn looking cartilage in the larynx

corniculate cartilage

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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