BME 20100 Lecture 8: Muscles of the Neck
29 Jan 2019
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Document Summary
When this muscle contracts it allows the head and neck to move side to side. Sternohyoideus: attaches manubrium to hyoid apparatus (basihyoid bone) Sternthyroideus: attaches 1st costal cartilage to larynx (thyroid cartilage) Pulls the tongue and larynx caudally when it contracts. Arthrology is the study of joints and ligaments. Joint (articulation) is formed where two or more bones come in contact. Three types of joints: fibrous joints: have minimal movement, and their main purpose is to hold bones together. Ex. flat bones of cranium: cartilaginous joints: permits only limited motion, mainly stretching or compression. Included within this type of joint are the fibrocartilaginous joints found between vertebral bodies (ivd) and in the pelvic symphysis: synovial joint: permits a wide range of motion. The articulating areas of the bones involved are covered with. Articular cartilage is considered to by avascular (low abundance of blood vessels) and insensitive (low abundance of nerves) A joint capsule surrounds and envelopes the entire synovial joint.
