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Question
What are the most important expiratory muscles?a. muscles of the abdominal wall
b. intercostal muscle
c. diaphragm
d. lumber muscles
e. inner pelvic muscles
Answer
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Related questions
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The plasma clearance rate for a secreted substance is always less than the glomerular filtration rate.
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a. True
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The loop of Henle forms a sharp U-shaped or hairpin loop that surrounds the renal cortex.
a. True
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What does micturition mean?
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What happens when the hydrogen ion concentration in the body fluids is too low?
a. Oxygen absorption increases.
b. Hydrogen absorption increases.
c. Hydrogen absorption decreases.
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e. Hydrogen secretion decreases.
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The most prevalent ions secreted by the tubules are:
a. sodium and chloride
b. sodium and hydrogen
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a. potassium
b. chloride
c. sodium
d. glucose
e. phosphorus
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How are glucose and amino acids reabsorbed in the proximal tubule?
a. primary passive transport
b. secondary passive transport
c. primary active transport
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What are the two major control mechanisms that regulate the glomerular filtration rate (GFR)?
a. internal regulation and intrinsic parasympathetic control
b. autoregulation and intrinsic sympathetic control
c. internal regulation and extrinsic parasympathetic control
d. autoregulation and extrinsic sympathetic control
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Gas exchange at both the pulmonary capillary and the tissue capillary levels involves simple __________ diffusion of O2 and CO2 down __________ pressure gradients.
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Emphysema is characterized by __________ of the smaller airways and breakdown of __________ walls.
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The major inspiratory musclesthe muscles that contract to accomplish an inspiration during quiet breathinginclude the __________ and __________ intercostal muscles.
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__________ is an inflammation of the pleural sac and leads to by painful breathing because each inflation and each deflation of the lungs cause a "friction rub."
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Because the amount of atmospheric air that reaches the alveoli and is actually available for exchange with blood is more important than the total amount breathed in and out, alveolar ventilation is more important than pulmonary ventilation.
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Inspiratory volume is the minimum volume of air remaining in the lungs even after a maximal expiration.
a. True
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The lungs' elastic behavior results from elastin fibers and alveolar surface tension.
a. True
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Beyond the larynx, the trachea divides into two main branches, the right and left bronchi.
a. True
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Hiccups occur when involuntary, spasmodic contractions take place in what muscle?
a. chest muscles
b. abdominal muscles
c. intercostal muscles
d. bronchioles
e. diaphragm
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Generation of respiratory rhythm is now known to lie in the:
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b. pneumotaxic center
c. respiratory modulator
d. pre-Btzinger complex
e. apneustic center
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The most important factor determining the percentage of hemoglobin saturation is the:
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