Which of the following is the cause of the "plateau" in cardiac muscle action potentials?
a. Sodium ion influx
b. Calcium ion influx
c. Calcium ion outflux
d. Chloride ion outflux
e. Potassium ion influx
Answer: b. Calcium ion influx
You might also like to view...
The area between the ureters and urethra is that is often the location of infection is called the ________ in a bladder
Fill in the blanks with correct word
Cytotoxic T cells can respond to foreign antigens only in association with:
a. B cell linkages b. class I MHC glycoproteins c. class II MHC glycoproteins d. both (b) and (c) e. all of these answers.
Explain briefly why the modifications of the jaws of early neopterygians (see Figure 6-5) represent an important advance in feeding, and how the further modifications seen in the jaws of teleosts (see Figure 6-6) allow still more specialization
What will be an ideal response?
Branching "ribs" of bone present in spongy bone are known as:
A) lamellae. B) lacunae. C) canaliculi. D) trabeculae.