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http://endeavor.med.nyu.edu. Curriculum. Histology. Courseware. Syllabus. Interactive Questions POP-Quizzes Lab “Intros” (experimental). Download Lecture. Skeletal Muscle. Vocabulary. Sarcolemma Plasma Membrane Sarcoplasm Cytoplasm Sarcoplasmic Reticulum Endoplasmic Reticulum
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http://endeavor.med.nyu.edu Curriculum Histology Courseware Syllabus Interactive Questions POP-Quizzes Lab “Intros”(experimental) Download Lecture
Vocabulary Sarcolemma Plasma Membrane Sarcoplasm Cytoplasm Sarcoplasmic Reticulum Endoplasmic Reticulum Nexus Gap Junction
Muscle Fasciculus Group of Muscle Fibers from Gray’s Anatomy
Myofibril Myofilaments Myosin Actin from Gray’s Anatomy
Titin immunoglobulin (Ig) fibronectin type III (fnIII) C N http://www.chemsoc.org/exemplarchem/entries/kscott/titin.htm
M Z Z
Skeletal Muscle Control
S Nerve Terminal Junctional folds
Terminal Cisterna T-tubule Dihydropyridine receptor Ryanodine receptor Calsequestrin Ryanodine receptor Terminal Cisterna
T-tubule Lumen Dihydropyridine receptor V T-T Muscle sarcoplasm Ryanodine receptor Ca2+ TC/SR Ca2+ calcium ATPase Calsequestrin
1 4 3 2
Skeletal Muscle Development
Intercalated Disk B Macula adherens (desmosome) A Fascia adherens A B A C B fromJunqueira, Fig. 10-18 A C Gap junction
Cx-43 MA MA
from Gray’s Anatomy from Gray’s Anatomy Purkinje Fibers
Cx-45 from Wheater
DB Col GJ CA M DB DB E. Robbins
Smooth Muscle Contraction S.J. Gunst, et al., 2003