Question 21#

Anaesthesia of the nasal side wall is best accomplished through infiltration of which one of the following nerves?

A. Buccal

Infra-orbital. Anaesthesia of the nasal side wall is best accomplished through infiltration of the infra-orbital nerves, which itself may be undertaken through an intra-oral approach.

References:

1. Moore LK, Dailey AF. Summary of cranial nerves. In: Clinically oriented anatomy, 4th ed. Moore LK, Dailey AF, Eds. Philadelphia, USA: Lippincott Williams & Wilkins, 1999: 1082-96.
2. Zide BM, Swift R. How to block and tackle the face. Plast Reconstr Surg 1998; 101(3): 840-51.

Question 22#

Which of the following subcutaneous infiltration techniques used in a patient undergoing suction lipectomy has an infiltrate-to-aspirate ratio of 1:1?

A. Dry

Superwet. In a patient undergoing suction lipectomy, the superwet subcutaneous infiltration technique has an infiltrate-to-aspirate ratio of 1:1 (Fodor 1986). The tumescent technique has a ration of 2-3ml of infiltrateto-aspirate (Klein 1987).

References:

1. Klein JA, Pitman, G. Tumescent technique for local anesthesia improves safety in large-volume liposuction. Plast Reconstr Surg 1993; 92(6): 1099-100.
2. Trott SA, Beran SJ, Rohrich RJ, Kenkel J, Adams WP Jr., Klein K. Safety consideration and fluid resuscitation in liposuction: an analysis of 53 consecutive patients. Plast Reconstr Surg 1998; 102(6): 2220-9.

Question 23#

A 40-year-old woman desires improvement of transverse rhytids along the root of the nose. The most appropriate surgical procedure is resection of which of the following muscles?

A. Corrugator supercilii

Procerus. For a 40-year-old woman who desires improvement of transverse rhytids along the root of the nose, procerus resection is the most appropriate surgical procedure.

References:

1. Flowers R, Duval C. Blepharoplasty and periorbital aesthetic surgery. In: Grabb & Smith’s plastic surgery, 5th ed. Aston SJ, Beasley RW, Thorne CH, Eds. Philadelphia, USA: Lippincott-Raven, 1997: 609.
2. Knize DM. As anatomically based study of the mechanism of eyebrow ptosis. Plast Reconstr Surg 1996; 97(7): 1321-33.
3. Thorne CH, Aston SJ. Aesthetic surgery of the aging face. In: Grabb & Smith’s plastic surgery, 5th ed. Aston SJ, Beasley RW, Thorne CH, Eds. Philadelphia, USA: Lippincott-Raven, 1997: 617.

Question 24#

Which of the following anatomic structures of the ear orginates from the second (hyoid) pharyngeal arch?

A. Antitragus

Antitragus. The antitragus orginates from the middle posterior hillock of the second branchial arch. The other components are formed as follows: the three anterior hillocks of the first arch - the tragus, the crus of the helix, and the helix proper; and the posterior hillocks - the lobule, antitragus and antihelix.

References:
1. Brent B. Reconstruction of auricle: In: Plastic surgery. McCarthy JG, Ed. Philadelphia, USA: Saunders, 1990: 2093.

Question 25#

Concerning the ear:

A. The superficial temporal artery is the dominant blood supply

The tragus, root of the helix and superior helix arise from the first branchial arch and drain to parotid nodes. The posterior auricular artery is the dominant blood supply of the ear, not the superficial temporal artery.