Scalenus posterior
The anterior vertebral muscles. (Scalenus posterior visible at bottom right.)
Latin	musculus scalenus posterior
Gray's	subject #114 396
Origin	transverse processes of C4 - C6
Insertion	2nd rib
Artery	Ascending cervical branch of the inferior thyroid artery, and the superficial cervical artery.
Nerve	C6 - C8
Actions	Elevate 2nd rib, tilt the neck to the same side

The Scalenus posterior (Scalenus posticus), the smallest and most deeply seated of the three Scaleni, arises, by two or three separate tendons, from the posterior tubercles of the transverse processes of the lower two or three cervical vertebræ, and is inserted by a thin tendon into the outer surface of the second rib, behind the attachment of the Serratus anterior.

It is occasionally blended with the Scalenus medius.

[edit] See also

• Scalene muscles
• Accessory muscles of respiration

[edit] Additional images

Peculiar ribs.

[edit] External links

• LUC sp

This muscle article is a stub. You can help Wikipedia by expanding it. v • d • e

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 As such, some of the information contained within it may be outdated.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)