The relative refractory period of an excitable membrane refers to the period of time during which no stimulus, however strong, will elicit a second action potential in the membrane.

Answer the following statement true (T) or false (F)


False

Anatomy & Physiology

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Myosin light-chain phosphatase is an enzyme that dephosphorylates the myosin heads in smooth muscle, which stops ATPase activity and fosters relaxation of smooth muscle

Indicate whether this statement is true or false.

Anatomy & Physiology

The auricle is:

a. a flap-like portion of the atrium b. the connective tissue flap of a valve c. another name for atrium d. a mythological character that lives in a cave and gives cryptic answers to stupid questions

Anatomy & Physiology

With age, bones

A. become more flexible. B. become brittle. C. increase in mass. D. increase their pliability. E. lose their blood supply.

Anatomy & Physiology

The majority of norepinephrine released by varicosities only briefly affects the target tissue because it is quickly reused or broken down by

A) monoamine oxidase. B) acetylcholinesterase. C) nitroxide. D) decarboxylase. E) catalase.

Anatomy & Physiology