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The cardiac plexus is divided into a superficial part, which lies in the concavity of the aortic arch, and a deep part, between the aortic arch and the trachea. The two parts are, however, closely connected. The sympathetic component of the cardiac plexus comes from cardiac nerves, which originate from the
The cervical plexus is situated deep to the sternocleidomastoid muscle, internal jugular vein, and deep cervical fascia. [ 1 ] It is situated anterior to the middle scalene muscle , and levator scapulae muscle .
The supraclavicular nerve is a cutaneous (sensory) nerve of the cervical plexus that arises from the third and fourth cervical (spinal) nerves.It emerges from beneath the posterior border of the sternocleidomastoid muscle, then split into multiple branches.
The right nerve, at the root of the neck, passes either in front of or behind the subclavian artery, and along the brachiocephalic trunk to the back of the arch of the aorta, where it joins the deep part of the cardiac plexus.
This plexus lies within the psoas major muscle. Nervi of the plexus serve the skin and the muscles of the lower abdominal wall, the thigh and external genitals. The largest nerve of the plexus is the femoral nerve. It supplies anterior muscles of the thigh and a part of skin distal to the inguinal ligament.
Branches of cervical plexus; Roots and trunks of brachial plexus; Phrenic nerve (C3,4,5) B) Vessels: Subclavian artery (Third part) Transverse cervical artery; Suprascapular artery; Terminal part of external jugular vein; C) Lymph nodes: Occipital; Supraclavicular; D) Muscles: Inferior belly of omohyoid muscle; Anterior Scalene; Middle Scalene ...
The plexus is the characteristic form of nervous system in the coelenterates and persists with modifications in the flatworms.The nerves of the radially symmetric echinoderms also take this form, where a plexus underlies the ectoderm of these animals and deeper in the body other nerve cells form plexuses of limited extent.
The medial cord is the part of the brachial plexus formed by of the anterior division of the lower trunk (C8-T1). [1] Its name comes from it being medial to the axillary artery as it passes through the axilla. The other cords of the brachial plexus are the posterior cord and lateral cord.