2- Match the correct terms with their meanings. Place the corresponding letterwithin the parenthesisColumn AColumn Bhu) Refractory perioda. An electrical impulse caused by a strong-enough graded potential) Graded potentialb. The membrane potential of a resting cellhu) Action potentialc. Releases neurotransmittershu) Presynaptic elementd. Caused by stimulushu) Sodiume. Change in a cell membrane potential fromrest toward zero) Potassiumf. Enters the neuron and causes depolarizationhu) Depolarizationg. time after the initiation of an action potentialwhen another action potential cannot begeneratedu) Resting potentialh. return of the membrane potential to itsnormally negative voltage at the end of theaction potentialhu) Repolarizationi. Exits the neuron and causeshyperpolarization

Answered: 2- Match the correct terms with their…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Related questions

Question

2- Match the correct terms with their meanings. Place the corresponding letter
within the parenthesis
Column A
Column B
hu) Refractory period
a. An electrical impulse caused by a strong-
enough graded potential
) Graded potential
b. The membrane potential of a resting cell
hu) Action potential
c. Releases neurotransmitters
hu) Presynaptic element
d. Caused by stimulus
hu) Sodium
e. Change in a cell membrane potential from
rest toward zero
) Potassium
f. Enters the neuron and causes depolarization
hu) Depolarization
g. time after the initiation of an action potential
when another action potential cannot be
generated
u) Resting potential
h. return of the membrane potential to its
normally negative voltage at the end of the
action potential
hu) Repolarization
i. Exits the neuron and causes
hyperpolarization

Expert Solution

Step 1

Neurons are the major components of the central nervous system and plays a major role in transmitting information between themselves and other types of cells such as muscle cells. It is composed of three parts namely;

a cell body(composed of cytoplasm and nucleus)
dendrites
an axon.

Axon is covered by a fatty substance called myelin sheath with gaps or nodes of Ranvier. These aid in faster transmission of nerve impulses. The cell body of neurons is impermeable to charged ions. Thus, these ions enter into neurons through voltage gated ion channels. These channels maintain the concentration of ions between the neuronal membrane.

The difference in the charge between the inside and the outside of the membrane is termed as the membrane potential.