Scalenus anterior
The anterior vertebral muscles. (Scalenus anterior visible at bottom left.)
Section of the neck at about the level of the sixth cervical vertebra. Showing the arrangement of the fascia coli. (Scalenus anterior visible at center left.)
Latin	musculus scalenus anterior
Gray's	subject #114 396
Origin	C3-C6
Insertion	first rib
Artery	Ascending cervical artery (branch of Inferior thyroid artery)
Nerve	ventral ramus of C5, C6
Actions	elevate 1st rib, rotate the neck to the opposite side

The Scalenus anterior (Scalenus anticus), also known as anterior scalene muscle, lies deeply at the side of the neck, behind the Sternocleidomastoideus.

It arises from the anterior tubercles of the transverse processes of the third, fourth, fifth, and sixth cervical vertebræ, and descending, almost vertically, is inserted by a narrow, flat tendon into the scalene tubercle on the inner border of the first rib, and into the ridge on the upper surface of the rib in front of the subclavian groove.

[edit] Additional images

Related images

A cervical vertebra	Peculiar ribs.
Muscles of the neck. Lateral view.	Superficial dissection of the right side of the neck, showing the carotid and subclavian arteries.
The internal mammary artery and its branches.	The right brachial plexus with its short branches, viewed from in front.

[edit] See also

• Scalene muscles
• Accessory muscles of respiration

[edit] External links

• LUC sa
• 1074135100 at GPnotebook
• scalenus+anterior+muscle at eMedicine Dictionary

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v • d • e List of muscles of head and neck: the neck (TA A04.2, GA 4.387) Cervical CN VII (superficial, PC): platysma CN XI (deep): sternocleidomastoid C1-C6 (anterior): Prevertebral muscles: longus (capitis, colli) C3-C8 (lateral): scalene (anterior, medius, posterior) Suboccipital C1: rectus capitis posterior (major, minor) · obliquus capitis (inferior, superior) C1-C6 (anterior): Prevertebral muscles: rectus capitis (anterior, lateralis) Suprahyoid CN V3 (medial): mylohyoid · anterior belly of digastric CN VII (lateral): stylohyoid · posterior belly of digastric C1 (deep): geniohyoid Infrahyoid/strap C1: thyrohyoid C1-C3: sternohyoid  · sternothyroid · omohyoid Fasciae Deep cervical fascia (Pretracheal fascia, Prevertebral fascia, Investing layer) · Carotid sheath · Alar fascia pharynx: Buccopharyngeal fascia · Pharyngobasilar fascia Palatine aponeurosis Pharyngeal raphe Pharynx pharyngeal constrictor (superior, middle, inferior) · longitudinal (stylopharyngeus, salpingopharyngeus) Larynx cricothyroid · cricoarytenoid (posterior, lateral) · arytenoid (oblique arytenoid/aryepiglottic, transverse arytenoid) · thyroarytenoid (vocal, thyroepiglottic)

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