chapter 23 respiration connect

during normal circulation, how much oxygen is transported to systemic capillaries is released to the tissue

25%

during normal circulation, what is the percent oxygen-hemoglobin saturation in systemic blood returning to the lungs

75%

the smallest respiratory bronchioles subdivide into thin airways called

alveolar ducts

the type of alveolar cell that promotes rapid gas diffusion across the alveolar wall is

alveolar type one cell

the haldane effect describes the effect of ____binding to hemoglobin or the ability of oxygen to bind to hemoglobin

carbon dioxide

conversion of carbon dioxide and water to carbonic acid is aided by the enzyme

carbonic anhydrase

carbon dioxide binds to what on hemoglobin

globin

on the medial surface of the lungs is a ____ through which the bronchus enter the lungs

hilum

as air is forced out of the lungs and moves through the ___, sound is produced

larynx

the parietal pleura lines which of the following

lateral surfaces of the mediastium, superior surface of the diaphragm, internal thoracic walls

what depends on the amount of air passing through the vocal chords

loudness

main bronchi enter the ___ of each lung

medial

central chemoreceptors are found in the central lateral section of the

medulla

according to bohr effect, the higher the ph, hemoglobin is ___ likely to bind to oxygen

more

the nose is supported by paired ____ that forms the bridge of the nose

nasal bones

the oxygen remaining bound to the hemoglobin after passing through systemic capillaries is known as the

oxygen reserve

amount of air moved in and out in one minute

pulmonary ventilation

what muscles increase the thoracic cavity

scalene

a lubricating fluid found in the pleural cavity is the ___ fluid

serous

the bronchioles are lined with ___ epithelium

simple columnar

in which volume do you measure intrapulmonary pressure

the alveolar volume

in ventilation perfusion coupling, bronchodilation occurs when

there is elevated PCO2 in the blood

the sum of all volumes including residual volume and is the maximum volume of the air the lungs can hold

total lung capacity

the outer surface of each lung is tightly covered by

visceral pleura

the total amount of air that can be moved in and out of the lungs by forced breathing is called

vital capacity

total amount of air that can be forced in and out of the lungs by forced breathing is called

vital capacity