Which Are Common Key Features of Hormones

question 13

Multiple Choice

Which are common key features of hormones?

• A) Hormones may travel long distances to get to their target tissues.
• B) Continued hormone activity requires continued production and secretion.
• C) Control of hormone activity is caused by negative feedback mechanisms.
• D) Most hormones are stored in the target tissue for use later.
• E) Most hormones cause target tissues to change activities by changing gene activity.

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Definitions:

Prime Mover

A muscle or muscle group that plays a leading role in performing a specific movement through contraction.

Orbicularis Oris

A muscle around the mouth that controls the movements of the mouth and lips, crucial in forming facial expressions and speech.

Eyebrows

The strips of hair growing above the eyes, playing a role in facial expression, communication, and protection of the eyes from sweat and debris.

Buccinators

The buccinator muscles are thin, flat muscles of the cheeks, involved in blowing, sucking actions, and aiding in mastication by pressing the cheeks against the teeth.