Search results
Results From The WOW.Com Content Network
The anterior scalene muscle (Latin: scalenus anterior), lies deeply at the side of the neck, behind the sternocleidomastoid muscle.It arises from the anterior tubercles of the transverse processes of the third, fourth, fifth, and sixth cervical vertebrae, and descending, almost vertically, is inserted by a narrow, flat tendon into the scalene tubercle on the inner border of the first rib, and ...
Trapezius muscle; elevation of the ribs. Pectoralis minor muscle; Scalene muscles; mandible. Medial pterygoid muscle; upper lip. Levator labii superioris; upper lip and wing of nose. Levator labii superioris alaeque nasi muscle; angle of mouth. Levator anguli oris; upper eyelid. Levator palpebrae superioris muscle; eyeball. Superior rectus muscle
The nerve is important for breathing because it provides exclusive motor control of the diaphragm, the primary muscle of respiration. In humans, the right and left phrenic nerves are primarily supplied by the C4 spinal nerve, but there is also a contribution from the C3 and C5 spinal nerves. From its origin in the neck, the nerve travels ...
An accessory muscle can also refer to a muscle that is not primarily responsible for movement but does provide assistance. [1] Examples of such muscles are the accessory muscles of respiration where the sternocleidomastoid and the scalene muscles (anterior, middle and posterior scalene) are typically considered accessory muscles of respiration. [6]
From Wikipedia, the free encyclopedia. Redirect page
Posterior triangle is bordered by the posterior border of the sternocleidomastoid muscle, anterior border of the trapezius muscle and the superior edge of the middle third of the clavicle. This triangle contains the sternocleidomastoid, trapezius, splenius capitis, levator scapulae, omohyoid, anterior, middle and posterior scalene muscles. [1 ...
It descends in front of the longus colli muscles. The prevertebral fascia is prolonged downward and laterally behind the carotid vessels and in front of the scalene muscles . It forms a sheath for the brachial nerves , subclavian artery , and subclavian vein in the posterior triangle of the neck; it is continued under the clavicle as the ...
The second part, also known as the scalene part, [4] lies behind the anterior scalene muscle. [1] The third part, also known as the postscalene part, [4] extends from the lateral margin of the muscle to the outer border of the first rib, where it becomes the axillary artery. [1] [2]