Welcome to International Journal of Anatomy and Research

Type of Article : Orginal Research

Year: 2015 | Volume 3 | Issue 3 | Page No. 1302-1305

Date of Publication: 31-08-2016

DOI: http://dx.doi.org/10.16965/ijar.2015.216

UNILATERAL ABSENCE OF THE STERNOHYOID MUSCLE WITH CONTRALATERAL TENDINOUS BELLY OF SUPERIOR BELLY OF OMOHYOID MUSCLE: A VERY RARE FORM OF INFRAHYOID MUSCLE VARIATION

Prabhas Ranjan Tripathy *¹, Chappity. Preetam ².

^*1 Assistant Professor, Department of Anatomy, All India Institute of Medical sciences, Bhubaneswar, Odisha, India.
² Assistant Professor, Department of ENT & HNS, All India Institute of Medical sciences, Bhubaneswar, Odisha, India.

Address: Dr.Prabhas Ranjan Tripathy, Assistant Professor, Department of Anatomy, All India Institute of Medical sciences, Bhubaneswar, Odisha, India. Mob-9861187082.
E-Mail: prabhas_ranju@yahoo.co.in

Abstract

The sternohyoid, sternothyroid, thyrohyid and omohyoid constitute the infrahyoid group of anterior neck muscles. All these muscles are supplied by Ansa crvicalis related to the anterior wall of carotid sheath. During regular cadaveric dissection in the Department of Anatomy at AIIMS, Bhubaneswar, a case of right sided absence of sternohyoid muscle with left sided tendinous superior belly of omohyoid muscle was found. Though literature survey shows the tendinous belly (or absence) of superior belly of omohyoid muscle, but its presence in combination with absence of opposite side sternohyoid muscle is hardly reported. The omohyoid muscle has effect on intracerebral venous hemodynamics. Developing from a common muscle primodium the infrahyoid muscle group shows a number of variations. Because of increased use of Infrahyoid myocutaneous flaps for medium sized head and neck reconstruction surgery this knowledge will be helpful for handling and selecting a flap.
KEY WORDS: Infrahyoid, Sternohyoid, Omohyoid Muscles, Infrahyoid Myocutaneous Flap.

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Prabhas Ranjan Tripathy, Chappity. Preetam. UNILATERAL ABSENCE OF THE STERNOHYOID MUSCLE WITH CONTRALATERAL TENDINOUS BELLY OF SUPERIOR BELLY OF OMOHYOID MUSCLE: A VERY RARE FORM OF INFRAHYOID MUSCLE VARIATION. Int J Anat Res 2015;3(3):1302-1305. DOI: 10.16965/ijar.2015.216