BIO 172 Lecture Notes - Lecture 11: Pyruvic Acid, Creatine Kinase, Tetany
Document Summary
General functions: body movement, maintenance of posture, protection and support, regulating elimination of materials, heat production. Dense irregular connective tissue wrapping the whole muscle: perimysium. Dense irregular connective tissue wrapping the fascicle. Houses many blood vessels and nerves: endomysium. Attachments: attach skin or muscle to bone. Tendon: cordlike structure of dense regular connective tissue. Aponeurosis: thin, flattened sheet of dense irregular tissue: fascia. Deep: sheet of dense irregular connective tissue that. Contains: nerves, blood vessels, lymph vessels. Superficial: areolar and adipose tissue that is located superficial to deep fascia. Muscle fiber (muscle cell: sarcoplasm: cytoplasm. Sarcoplasmic reticulum: internal membrane complex similar to smooth endoplasmic reticulum. Myofibrils: bundles of myofilaments: enclosed in the sarcoplasmic reticulum, makes up most of the muscle fibers volume, sarcomere: myofilaments arranged in repeating units with overlapping filaments. Terminal cisternae: blind sacs of sarcoplasmic reticulum: reservoirs for calcium ions, 2 cisternae+1 t-tubule= triad, nuclei. Cell is formed in embryo when multiple myoblast fuse: sarcolemma: plasma membrane.
