A Vertebrate Motor Unit Consists of

question 75

Multiple Choice

A vertebrate motor unit consists of

• A) a single motor neuron and all of the muscle fibers that it innervates.
• B) all of the muscles that contract to complete a particular body movement.
• C) a particular muscle and all of its synergistic and antagonistic muscles.
• D) all of the fibers of a particular fiber type in a given muscle.

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Definitions:

Gene

A unit of heredity made up of DNA that is located on a chromosome and can influence physical or behavioral traits, and can be passed from one generation to the next.

Chromosome

Structures within cells that contain DNA and carry genetic information responsible for determining the traits of an organism.

Microbiome

The collective genome of the microbes (composed of bacteria, bacteriophage, fungi, protozoa, and viruses) that live inside and on the human body.

Nature And Nurture

A concept in developmental psychology that examines the influence of genetic inheritance (nature) and environmental factors (nurture) on human development.