Foramina in the skull serve as passageways for blood vessels, nerves, and other structures. Which of these foramina is covered by connective tissue in adults, and therefore does not serve as a passageway?
A. Foramen ovale
B. Foramen lacerum
C. Foramen spinosum
D. Foramen magnum
E. Foramen rotundum
Answer: B
You might also like to view...
Imagine a genetic mutation that resulted in a malfunctioning inactivation gate in a voltage-gated sodium channel. The defective gate wouldn't always open and close when it should. What functional problems would this cause for the neurons?
What will be an ideal response?
A group of water molecules are held together by ________ bonds.
A. savings B. nonpolar covalent C. ionic D. polar covalent E. hydrogen
Which combination of substances would cause the greatest stimulation of gastric HCl secretion when applied to parietal cells?
A. somatostatin, gastrin, and histamine B. acetylcholine, histamine, and somatostatin C. somatostatin and acetylcholine D. gastrin, histamine, and acetylcholine E. histamine and gastrin
The intensity of vibrations is measured in
A) decibels. B) wavelength. C) frequency. D) cycles. E) duration.