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The middle scalene originates from the transverse processes of the last six cervical vertebrae, between the anterior and posterior tubercle, inserting itself on the upper face of the first rib, posterior to the sulcus of the subclavian artery.The middle scalene arises from the posterior tubercles of the transverse processes of the lower six cervical vertebrae. It descends along the side of the vertebral column to insert by a broad attachment into the upper surface of the first rib, posterior to the subclavian groove.The scalene triangle is bound by the anterior and middle scalene muscles, with the first rib at the base. The brachial plexus nerves (yellow) and the subclavian artery (red) pass through the scalene triangle, while the subclavian vein (blue) passes in front.
What is the insertion of the middle scalene muscle?
The middle scalene arises from the posterior tubercles of the transverse processes of the lower six cervical vertebrae. It descends along the side of the vertebral column to insert by a broad attachment into the upper surface of the first rib, posterior to the subclavian groove.
Where does the middle scalene muscle passes through?
The scalene triangle is bound by the anterior and middle scalene muscles, with the first rib at the base. The brachial plexus nerves (yellow) and the subclavian artery (red) pass through the scalene triangle, while the subclavian vein (blue) passes in front.
Scalene muscles: origins, insertions, innervation and actions (preview) – Human Anatomy | Kenhub
Images related to the topicScalene muscles: origins, insertions, innervation and actions (preview) – Human Anatomy | Kenhub
What pierces the middle scalene?
The first two roots of the long thoracic nerve and the dorsal scapular nerve pierce the middle scalene and emerge on its lateral surface.
What passes between anterior and middle scalene?
The brachial plexus and subclavian artery pass between the anterior and middle scalenes, while the subclavian vein and phrenic nerve pass anteriorly to the anterior scalene as the muscle crosses over the first rib.
Which is the origin of the middle scalene?
The middle scalene originates from the transverse processes of the last six cervical vertebrae, between the anterior and posterior tubercle, inserting itself on the upper face of the first rib, posterior to the sulcus of the subclavian artery.
What attaches to scalene tubercle?
The scalene tubercle is a small projection that runs along the medial border of the first rib between two grooves, which travel anteriorly for the subclavian artery and posteriorly for the subclavian vein. It projects outward medially, and is the site of insertion for scalenus anterior. First rib.
What is the insertion of the anterior scalene?
Insertion. By a narrow, flat tendon attaches 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.
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Scalene muscles: Innervation, function, action, location | Kenhub
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Middle Scalene – Physiopedia
Middle Scalene, AKA Scalenus Medius (Latin: musculus scalenus medius), is the largest and longest muscle in the scalene group of lateral neck muscles. Often …
The Scalene Muscles – Attachments – Action – TeachMeAnatomy
The middle scalene is the largest and longest of the three scalene muscles. It has several long, thin muscles bellies arising from the …
Scalene muscles – Wikipedia
The scalene muscles are a group of three pairs of muscles in the lateral neck, namely the anterior scalene, middle scalene, and posterior …
Which of the following muscle has its insertion on the sternum?
| Sternalis | |
|---|---|
| Origin | manubrium of sternum or clavicle |
| Insertion | xiphoid process, pectoral fascia, lower ribs, costal cartilages or rectus sheath |
| Identifiers | |
| Latin | Musculus sternalis |
Scalene Muscles of the Neck – Human Anatomy | Kenhub
Images related to the topicScalene Muscles of the Neck – Human Anatomy | Kenhub
What is the origin and insertion of the levator scapulae?
Origin and insertion
Levator scapulae originates from the transverse processes of the first four cervical vertebrae. The muscle fibers descend laterally to insert at the superior angle and medial border of scapula, between the superior angle and base of the spine of scapula.
Where is scalenus medius?
The scalenus medius, also known as the middle scalene muscle, is a neck muscle that spreads from the posterior tubercles (back sections) of the transverse processes (sides) of the six cervical (C2 through C7) vertebrae, which are located near the top of the spine, within the neck.
What is the origin and insertion of the sternocleidomastoid muscle?
Sternocleidomastoid Attachments
It originates on the anterior surface of the manubrium, and the superior border and anterior surface of the medial third of the clavicle. The SCM converges into one point and inserts on the lateral surface of the mastoid process and the nuchal line of the occipital bone.
What passes through thoracic outlet?
The thoracic outlet refers to the confined space between the clavicle and first rib. Structures that pass through this region include the nerves of the brachial plexus, the subclavian artery, and the subclavian vein.
Where are scalenes inserted?
Its fibers originate from the posterior tubercles of transverse processes of cervical vertebrae C5-C7. The muscle extends posterolaterally and tapers into a thin tendon, which inserts into the external surface of the 2nd rib. The site of insertion is located posterior to the attachment of the serratus anterior muscle.
Which of following rib has scalene tubercle?
Answer and Explanation: The scalene tubercle is a feature of the 1st rib (answer A).
Muscle Palpation – Middle Scalene
Images related to the topicMuscle Palpation – Middle Scalene
What is the neck muscle that attaches to C3 C6?
The anterior scalene muscle is the most anterior of the scalene muscles. It arises from the anterior tubercles of the transverse processes of vertebrae C3-C6, and inserts onto the scalene tubercle and the superior border of the first rib.
Where is the posterior scalene?
Posterior Scalene, AKA Scalenus Posterior, is one of the lateral muscles of the neck, belonging to the Scalene group. It is deeply placed, lying behind Sternocleidomastoid.
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