Question

The structure that protects most of the larynx anteriorly is the...

		arytenoid cartilage
		corniculate cartilages
		thyroid cartilage
		trachea
		vertebral column
		three of these

Which choice below BEST represents posterior protection for our lungs?

		vertebral column
		sternum
		cricoid cartilage
		ribcage
		hyoid bone

The hard structure inferior to our "Adam's Apple" is the....

		Hyoid bone
		Lingual tonsils
		Palatine tonsils
		Cricoid cartilage
		Uvula

What might be a consequence if the body had few, if any, chloride ions?

		There would be an excess of hydrochloric acid
		action potentials would occur more often
		red blood cells would be electrically unbalanced
		we would be eupneic

Answer 1

1. Answer ; Thyroid cartilage.

Reason ; Mostly throughout the larynx structure it i surrounded by certain type of cartilage. These provides anatomical position and support to these organ. In the listed option, the cartilage like arytenoid and corniculate arerelated to these organ as posteriorly and medially and not as anteriorly. But the above mentioned cartilage formed anteriorly and provide protection to this organs. Hence the above mentioned option would be the appropriate answer.

2. Answer ; Rib cage.

Reason ; The part of the body which forms on the posterior to this organ and provide protection is the above mentioned parts. this part not only porvide protection to the this organs but also to the heart. Other listed option like sternum, cricoid cartilage and hyoid bone are not posterior to he lung and the vertebral colum won't be a protection for these organ. Hence the above mentioned option would be the most appropriate one.

3. Answer ; Cricoid cartilage.

Reason ; Among the listed structure the only hard structure that is inferior to these part of the larynx is the above mentioned structure. Other listed structure in the options are incorrect cause it is located superior to these part. Hence the above mentioned structure would be the actual structure inferior to the adam apple.

4. Answer ;