Damage to the septal cells of the lungs would most likely result in
A) a thickening of the respiratory membrane.
B) an increased rate of gas exchange.
C) alveolar rupture.
D) reduction in surfactant production.
E) decreased surface tension in the alveoli.
D) reduction in surfactant production.
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After spending several days at a high altitude, where oxygen pressure is low, a person will begin to produce more red blood cells, which enhances the ability of blood to carry oxygen to the tissues. What term best describes this type of response?
A. Positive feedback B. Feedforward regulation C. Evolution D. Physiological acclimatization E. Developmental acclimatization
The unit of skeletal muscle structure that is composed of bundles of myofibrils, enclosed within a sarcolemma, and surrounded by a connective tissue covering called endomysium is a
a. myofibril. b. fascicle. c. myofilament.
Which of the following abnormal respiratory patterns generally do NOT suggest brain injury or cerebral anoxia?
A) Biot respirations B) Agonal respirations C) Kussmaul respirations D) Cheyne-Stokes respirations
When electrons are transferred from one atom to another, and the two atoms unite as a result of the opposite charges, a(n) ________ is formed
A) ion B) molecule C) hydrogen bond D) ionic bond E) covalent bond