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The suprasternal notch is a visible dip in between the neck, between the clavicles, and above the manubrium of the sternum. It is at the level of the T2 and T3 vertebrae. [1] The trachea lies just behind it, rising about 5 cm above it in adults.
The suprasternal notch (jugular notch) is located in the middle at the upper broadest part of the manubrium. This notch can be felt between the two clavicles. On either side of this notch are the right and left clavicular notches. [1] The manubrium joins with the body of the sternum, the clavicles and the cartilages of the first 1.5 pairs of ...
The following reference lines are identified in Terminologia Anatomica: Anterior median line. Lateral sternal line: A vertical line corresponding to the lateral margin of the sternum. Parasternal line: A vertical line equidistant from the sternal and mid-clavicular lines. Mid-clavicular line: A vertical line passing through the midpoint of the ...
The triangle formed by the clavicle and the sternal and clavicular heads of the sternocleidomastoid muscle is used as a landmark in identifying the correct location for central venous catheterization. [medical citation needed] [10] Contraction of the muscle gives rise to a condition called torticollis or wry neck, and this can have a number of ...
Plan of the cervical plexus. (Superficial descending labeled at bottom left.) 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.
Anterior boundary. Midline of the neck from chin to the jugular notch. Posterior boundary. The anterior margin of sternocleidomastoid. Superior boundary (base) The lower border of the body of the mandible, and a line extending from the angle of the mandible to the mastoid process. Investing fascia covers the roof of the triangle while visceral ...
The giraffe's neck is elongated by heterochrony, extension of the time for the embryonic development of these bones. [ 4 ] By convention, the cervical vertebrae are numbered, with the first one (C1) closest to the skull and higher numbered vertebrae (C2–C7) proceeding away from the skull and down the spine.
72323. Anatomical terminology. [edit on Wikidata] The sternocostal joints, also known as sternochondral joints or costosternal articulations, are synovial plane joints of the costal cartilages of the true ribs with the sternum. [1] The only exception is the first rib, which has a synchondrosis joint since the cartilage is directly united with ...