The crista galli:
A) is the anatomic point of attachment of the meninges.
B) is divided into the anterior, middle, and posterior fossae.
C) is a horizontal bone perforated with numerous foramina.
D) allows the passage of the olfactory nerves from the nasal cavity.
Ans: A) is the anatomic point of attachment of the meninges.
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Indicate whether this statement is true or false.
Receptor molecules are located
A) only in the nucleus. B) only in the cytosol. C) only on the cell surface. D) only in the outer cell membrane. E) in all of these places.
In addition to the concentration gradient, what else affects the movement of ions across plasma membranes?
a. electrical charge b. molecular weight c. vibration d. spin e. number of atoms
Non-shivering thermogenesis is accomplished by:
a. the lungs b. brown fat c. skeletal muscles d. the thalamus e. the thyroid