Type I alveolar cells
a. form the wall of the alveoli.
b. secrete pulmonary surfactant.
c. contract during expiration to force air out of the alveoli.
d. two of these answers.
e. all of these answers.
A
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A) amphiarthroses B) synarthroses C) diarthroses D) synovial joints
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Indicate whether the statement is true or false
All of the following are true about areolar connective tissue except
A. it sustains tissue tension. B. it holds tissue fluids. C. it binds organs loosely together. D. it consists of cells in a fluid-gel matrix. E. All of these are true of areolar connective tissue.
The vestibular bulbs serve to
A. secrete mucus into the uterus. B. constrict the vagina during intercourse. C. lubricate the cervical canal. D. lubricate the vagina. E. neutralize vaginal acidity.