The Forceful Expulsion of Semen from the Urethra Caused by Contraction

question 11

Multiple Choice

The forceful expulsion of semen from the urethra caused by contraction of smooth muscle in the urethra and skeletal muscle surrounding the base of the penis is called

• A)ejaculation.
• B)emission.
• C)neutralization.
• D)physiological contracture.
• E)coagulation.

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Definitions:

Proton Spin Decoupled

A method used in nuclear magnetic resonance (NMR) spectroscopy where the interactions between proton spins are removed to simplify the spectrum.

3-Hexanone

A ketone with the formula C6H12O, characterized by a carbonyl group located on the third carbon atom of a six-carbon chain, used in fragrances and as a solvent.

Proton Spin Decoupled

A nuclear magnetic resonance (NMR) technique where the interaction between proton spins is removed or reduced, enhancing spectral resolution.

0-50 Ppm

A concentration range indicating 0 to 50 parts per million, often used to describe the presence of a substance within another substance.