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This Muscle Must Be Consciously Relaxed During Defecation in Order

question 29

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This muscle must be consciously relaxed during defecation in order to decrease the bend of the anorectal junction and permit easy passage of feces through the rectum.


Definitions:

Presynaptic Terminal

The end point of a neuron where neurotransmitters are stored before being released into the synaptic cleft.

Receptor Molecules

Specialized proteins located on the surface of or within cells, which bind to specific substances, leading to a cellular response.

Specificity

The ability of a test or biological mechanism to accurately identify a particular substance or pathogen without cross-reacting with other substances.

Synapses

The junctions between neurons through which nerve impulses pass by diffusion of neurotransmitters across a gap.

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