The Lungs

Do the abdominal muscles play a role in breathing (tidal volume)?

abdominal muscles are only used during forced breathing (like during exercise); same with internal intercostal muscles

The interface between the alveoli and the circulatory system is the site of gas exchange. Which of the following structures of the circulatory system contains the highest partial pressure of carbon dioxide?

a) the pulmonary venules
b) capillaries in the lungs
c) capillaries in the tissues
d) the pulmonary arterioles

d) the pulmonary arterioles

An epiglottidectomy is one treatment for sleep apnea that involves a partial removal of the epiglottis. Which of the following is a potential risk of an epiglottidectomy?

a) loss of the ability to filter air
b) impaired inhalation
c) shortness of breath
d) difficulty swallowing

d) difficulty swallowing

The epiglottis is a structure within the larynx that prevents food from entering the trachea. If part of the epiglottis is removed, it may become more difficult to swallow food without it entering the trachea.

how is the relationship between the pleurae and the lungs like your fist pushing against a balloon?

the balloon comes up and surrounds your hand. your fist is the lung and the balloon represents both pleural layers. the space within the balloon is the intrapleural space

where are the neurons regulating ventillation located?

in the medulla oblongata