Your heart seems to "pound" after you hear a sudden, loud noise. This increased contractility is:
A. because you were startled.
B. because when a gasp of surprise is emitted, the Frank-Starling law of the heart is evident.
C. due to norepinephrine causing threshold to be reached more quickly.
D. because acetylcholine release is inhibited.
Answer: C. due to norepinephrine causing threshold to be reached more quickly.
You might also like to view...
When water is lost, but electrolytes are retained,
A) the osmolarity of the ECF falls. B) osmosis moves water from the ICF to the ECF. C) both the ECF and the ICF become more dilute. D) there is an increase in the volume of the ICF. E) aldosterone is secreted.
In the word leuk/o/cyt/o/penia, the element "leuk/o" is the _____________________________________________________________
Fill in the blank(s) with correct word
When is a caudal epidural performed in large animal practice?
What will be an ideal response?
Our bodies need to coordinate and integrate all of their functions into one harmonious whole to maintain homeostasis.?
Indicate whether the statement is true or false