The Quill of a Feather Is Another Name for the

question 15

Multiple Choice

The quill of a feather is another name for the

• A) barbule.
• B) calamus.
• C) rachis.
• D) superior umbilicus.

---

Definitions:

Refractory Period

A recovery phase following an orgasm, during which an individual is physiologically unable to experience another orgasm.

Action Potential

A rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane due to the movement of ions in and out of the neuron.

Milliseconds

A unit of time equal to one thousandth of a second, often used in measuring reaction times or intervals in various scientific and technical contexts.

Millivolts

A unit of electric potential equal to one thousandth of a volt, commonly used to measure electrical potential differences.