How is the strength of a stimulus encoded by neurons?

A. by the size of action potentials
B. by the frequency of action potentials
C. by the duration of action potentials
D. by whether the action potential peak is positive or negative


B

Anatomy & Physiology

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__________________ describes motion along a straight line, whereas __________________ describes motion along a curved line.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

The sternum (breastbone) is ________ to the vertebral column.

A. inferior B. anterior C. medial D. superior E. posterior

Anatomy & Physiology

The secretion of growth hormone is controlled by ________.

A. the concentration of water in body fluids B. a releasing hormone and an inhibiting hormone from hypothalamus C. a releasing hormone from hypothalamus D. action potentials from the hypothalamus

Anatomy & Physiology

Active muscles generate

A) heat and oxygen. B) blood and sodium. C) sodium and oxygen. D) oxygen and carbon dioxide. E) carbon dioxide and heat.

Anatomy & Physiology