A chemical that alters heart rate is known as a(n) ________ agent.
Fill in the blank(s) with the appropriate word(s).
chronotropic
You might also like to view...
Air will flow from a place of high pressure to a place of low pressure.
Indicate whether the statement is true or false.
Most muscles that move the thigh attach proximally to the
A. linea alba. B. sacral spine. C. iliotibial tract. D. os coxae. E. head of the femur.
Which of the following is true about photoreceptors?
A) In dim light, images are focused directly on the rods in the fovea centralis. B) Three types of color-sensitive photoreceptors exist: red, green, and yellow. C) Rods absorb light throughout the visual spectrum but confer only gray tone vision. D) If all cones are stimulated equally, all colors are absorbed by the cones and the color perceived is black.
Cerebrospinal fluid (CSF) circulates through all of the following EXCEPT ________
A) subarachnoid space B) corpus callosum C) cerebral aqueduct D) fourth ventricle E) lateral ventricles