There Are ________ Basic Odours

question 116

Multiple Choice

There are ________ basic odours.

• A) an unknown number of
• B) ten thousand
• C) four
• D) seven

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Definitions:

Action Potentials

Rapid rises and falls in the membrane potential of a cell, fundamental in the conduction of electrical impulses along nerves and muscle fibers.

Sensory Neurons

Neurons that transmit signals from sensory receptors towards the central nervous system, carrying information about external or internal conditions.

Gamma Motor Neurons

Neurons that control the contraction of intrafusal muscle fibers in muscle spindles, helping to regulate muscle tone and sensitivity of stretch reflexes.

Muscle Spindle

A sensory receptor located within muscles that detects changes in muscle length, contributing to the sense of body position.