{"id":114,"date":"2015-08-07T16:36:25","date_gmt":"2015-08-07T16:36:25","guid":{"rendered":"http:\/\/sites.msudenver.edu\/haysc\/?page_id=114"},"modified":"2020-04-01T21:23:50","modified_gmt":"2020-04-01T21:23:50","slug":"outline-2-bio-2310-skeletal-muscle-tissue","status":"publish","type":"page","link":"https:\/\/sites.msudenver.edu\/haysc\/biology-courses\/human-anatomy-physiology-homepage-bio-2310\/outline-2-bio-2310-skeletal-muscle-tissue\/","title":{"rendered":"Outline-2, BIO 2310, Skeletal Muscle Tissue"},"content":{"rendered":"

IV.\u00a0<\/strong>SKELETAL MUSCLE TISSUE<\/strong><\/p>\n

A.\u00a0<\/strong>Gross Structure<\/p>\n

1.\u00a0Fascia (Connective Tissue)<\/p>\n

Connective tissue grouping whole muscles, filling spaces, providing origins of muscles<\/em><\/p>\n

2.\u00a0Epimysium<\/p>\n

Connective tissue around entire muscle<\/em><\/p>\n

3.\u00a0<\/em>Fascicles<\/p>\n

Cell bundles<\/em><\/p>\n

4. Perimysium<\/p>\n

Connective tissue around fascicles<\/em><\/p>\n

5. Endomysium<\/p>\n

Connective tissue around single muscle cell<\/em><\/p>\n

6. Tendon<\/p>\n

Muscle to bone (epimysium to periosteum)<\/em><\/p>\n

7. Aponeurosis<\/p>\n

Broad sheet like tendon<\/em><\/p>\n

B. Microstructure<\/p>\n

1.\u00a0Myofiber<\/strong><\/p>\n

Muscle cell<\/em><\/p>\n

a. Multinucleate, numerous mitochondria<\/p>\n

b. No mitosis<\/p>\n

c.\u00a0Sarcolemma<\/p>\n

Plasma membrane<\/em><\/p>\n

d. Sarcoplasmic reticulum [terminal cisternae]\n

Calcium storage<\/em><\/p>\n

e. Transverse (T) tubules<\/p>\n

Sarcolemma to interior of cell<\/em><\/p>\n

2. Myofibril<\/strong>(1u)<\/p>\n

Attached to sarcolemma, responsible for contraction<\/em><\/p>\n

a. I bands (isotropic)<\/p>\n

b. A bands (anisotropic)<\/p>\n

c.\u00a0Z lines<\/p>\n

d. Sarcomere<\/strong><\/p>\n

Functional unit of muscle contraction. Spans from one Z line to next.<\/em><\/p>\n

3. Myofilaments<\/strong><\/p>\n

a. Thick (16nm)<\/p>\n

1.\u00a0Myosin<\/strong><\/p>\n

2. Cross bridges (actin binding site)<\/p>\n

3.\u00a0ATP binding site<\/p>\n

b.\u00a0Thin (6nm)<\/p>\n

1.\u00a0Actin<\/strong><\/p>\n

2.\u00a0Tropomyosin<\/strong><\/p>\n

3.\u00a0Troponin<\/strong><\/p>\n

Anchors tropomyosin to actin<\/em><\/p>\n

Muscle tissue organization tutorial video<\/a><\/p>\n

Crash Course Muscle Tissue video<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

IV.\u00a0SKELETAL MUSCLE TISSUE A.\u00a0Gross Structure 1.\u00a0Fascia (Connective Tissue) Connective tissue grouping whole muscles, filling spaces, providing origins of muscles 2.\u00a0Epimysium Connective tissue around entire muscle 3.\u00a0Fascicles Cell bundles 4. Perimysium Connective tissue around fascicles 5. Endomysium Connective tissue around single … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":270,"featured_media":0,"parent":42,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"class_list":["post-114","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages\/114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/users\/270"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/comments?post=114"}],"version-history":[{"count":0,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages\/114\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages\/42"}],"wp:attachment":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/media?parent=114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}