What Is Line D Pointing To

question 14

Multiple Choice

What is line D pointing to?

• A) thyrohyoid membrane
• B) arytenoid cartilage
• C) cricothyroid ligament
• D) cricoid cartilage
• E) tracheal cartilage

---

Definitions:

Free Hormone

Hormones that are not bound to carrier proteins in the bloodstream and thus are biologically active and available to bind to receptors.

Capillary Walls

Thin, permeable membranes of capillary blood vessels that facilitate the exchange of gases, nutrients, and waste products between blood and tissues.

Episodic Hormone Secretion

The release of hormones in pulses or bursts, a common regulatory mechanism for hormone levels in the body.

Epinephrine

A hormone and neurotransmitter also known as adrenaline, which increases heart rate, muscle strength, and blood pressure during stress or excitement.