Neck - Respiratory layer of cervical viscera (1)

Question 1

Which is the only intrinsic laryngeal muscle that is NOT supplied by the recurrent laryngeal nerve?

Answer 1

Cricothyroid.

Question 2

Name the intrinsic laryngeal muscles (involved in movements of the vocal ligament / vocal folds)

Answer 2

Cricothyroid.
Thyroarytenoid.
Posterior cricoarytenoid.
Lateral cricoarytenoid.
Transverse and oblique arytenoid.
Vocalis.

Question 3

At what spinal level does the trachea bifurcate?

Answer 3

T4-T5. (the sternal angle, the transverse thoracic plane)