ANAT20006 Lecture Notes - Lecture 10: Tendon Sheath, Deep Fascia, Aponeurosis
23 Jul 2018
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Cardiac striated- not voluntary, short, own control, visceral, can hypertrophy, doesn t heal well. Smooth- visceral, no striations, involuntary, can hypertrophy and become small again (like uterus) Deep fascia- encircles muscle connected to super fascia (skin) Intermuscular septa- divides muscle in fascial (functional) compartments. Retinacula- hook binds muscles in place at ankle/wrist. Tendon- origin is stable and insertion moves. Aponeurosis- broad sheet that muscle fibres attach to where stability is needed. Raphe- muscles on both sides meet at the midline with this as the seam. Fascial sheath- nerve/blood supply encircled in this. Synovial tendon sheath- fibrous covering over tendons that attach to digits (allows smooth actions) 20/3/17 helps, antagonist let go, fixator hold in place prime does movement, synergist. Motor unit, cranial-caudal arrangement, nerve plexi for limb muscles, in/between functional groups. If a muscle starts somewhere embryonically and then moves, it takes its nerve supply with it.
