The walls of the alveoli are lined by
A) stratified cuboidal epithelium.
B) pseudostratified epithelium.
C) simple squamous epithelium.
D) loose connective tissue.
E) hyaline cartilage.
C) simple squamous epithelium.
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What is the function of the basal nuclei in normal motor control?
A. They provide a perceptual awareness related to specific sensory inputs from the eyes, nose, and mouth. B. They provide a sense of the cause-and-effect relationships between muscle actions and the consequences of taking these actions before executing them. C. They participate in a looping neuronal circuit through which motor impulses are sent to facilitate or suppress movements. D. They provide a general perceptual awareness associated with somatosensory inputs from the skin, muscles, and joints. E. They form an initial intention to move, such as when you decide to pick up an object.
The short-term controls of blood pressure, mediated by the nervous system and bloodborne chemicals, primarily operate via all but which of the following?
A) chemoreceptors B) altering blood volume C) reflex arcs involving baroreceptors D) reflex arcs associated with vasomotor fibers
At the optic chiasm, the fibers in the lateral half of each optic nerve cross over
Indicate whether the statement is true or false
What is a weak, thin-walled bulging sac in an arterial wall called?
A. An aneurysm B. A hematoma C. An atheroma D. An embolism E. A varicose vein