What component of the cardiac conduction system distributes electrical signals through the papillary muscles directly?
a. AV nodes.
b. AV bundle.
c. bundle of His.
d. Purkinje fibers.
e. SA node.
D
You might also like to view...
The thickened, cord-like connection of the uterus to the anterior pelvic wall is the
A) round ligament. B) uterosacral ligament. C) broad ligament. D) cardinal ligament. E) urachus.
Normally the most common type of leukocyte in a blood sample is the
________________ . Fill in the blank(s) with correct word
Select the structure that is not located in the cytosol of the cell
a. ER. b. golgi complex. c. lysosome. d. mitochondrion. e. all of the above are located in the cytosol
Which ventilates alveoli more effectively: slow, deep breaths or rapid, shallow breaths? Explain why
A) Slow, deep breaths because a smaller amount of the tidal volume of each breath is spent moving air into and out of the anatomic dead space. B) Slow, deep breaths because a larger amount of the tidal volume of each breath is spent moving air into and out of the anatomic dead space. C) Rapid, shallow breaths because a smaller amount of the tidal volume of each breath is spent moving air into and out of the anatomic dead space. D) Rapid, shallow breaths because a larger amount of the tidal volume of each breath is spent moving air into and out of the anatomic dead space.