BIO 169 Exam 3 Study Questions and Answers Graded A 2024

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)