In neurophysiology, the term "summation" refers to the addition of
A. action potentials at the node of Ranvier.
B. postsynaptic potentials at the initial segment.
C. excitatory neurotransmitter molecules at a receptor.
D. resting membrane potentials in a particular area of the brain.
E. presynaptic hyperpolarizations.
B
You might also like to view...
The term for the stoppage of blood flow is ________
A) Hemothrombus B) Hemostasis C) Hemosclerosis D) Homeostasis
Neurotransmitters are synthesized in the cell body, then transported in vesicles to the axon terminals using __________
Fill in the blank with correct words.
The volume of blood ejected from each ventricle during a contraction is called the
a. end-diastolic volume b. end-systolic volume c. stroke volume d. cardiac output e. cardiac reserve
Blood plasma and interstitial fluid are separated from each other; therefore, there is little communication and exchange between these fluids.
Answer the following statement true (T) or false (F)