Rapid diffusion of oxygen and carbon dioxide through the air sacs (alveoli) of the lungs takes place through ________ epithelium.
A. simple squamous
B. simple columnar
C. keratinized stratified squamous
D. simple cuboidal
E. nonkeratinized stratified squamous
Answer: A
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The presence of an enzyme within a chemical system
A. increases activation energy. B. decreases activation energy. C. increases potential energy. D. does not affect either activation energy or potential energy.
Which of the following is a true statement regarding gliding movements?
A) Gliding movements allow flexibility of the upper limbs. B) Gliding movements occur at the intercarpal and intertarsal joints. C) An example of a gliding movement is nodding one's head. D) Gliding movements are multiaxial.
The conversion of stimuli into neuron potentials
a. requires an adequate level of stimulus b. is called transduction c. stems from generation of receptor potentials d. all of these e. none of these
A subdural hematoma is classified as acute if clinical signs and symptoms develop:
A) immediately following the injury. B) within 24 hours following the injury. C) within 36 hours following the injury. D) within 48 hours following the injury