Gross & Microscopic Anatomy of the Respiratory Tract & Related

question 106

Multiple Choice

Gross & microscopic anatomy of the respiratory tract & related organs.
-In these views of the trachea, what structure does number 1 indicate?

• A) Trachealis muscle
• B) Thyroid cartilage
• C) Cricoid cartilage
• D) Annular ligament
• E) Tracheal cartilage

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Definitions:

Transmutation Reaction

A nuclear reaction in which the nucleus of an atom changes into a nucleus with a different number of protons, thereby changing one element into another.

Alpha Emitter

A type of radioactive decay in which an unstable atom emits an alpha particle consisting of two protons and two neutrons, thereby reducing its atomic number by 2 and mass number by 4.

Nitrogen

A colorless, odorless, tasteless gas that constitutes approximately 78% of the Earth's atmosphere and is a vital part of living organisms' compounds.

Helium

Helium is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas series in the periodic table, with the symbol He and atomic number 2.