Tissues & Organs
Tissues & Organs
Skeletal Muscle
Striated | Voluntary Control
Key ID
Cross Section | nuclei at the periphery, multinucleated, Cohnheim’s field
Longitudinal Section | nuclei at the periphery, multinucleated, striated banding pattern
Connective Tissue
Endomysium | loose connective tissue with type I and III collagen
Perimysium | dense irregular collagenous connective tissue
Epimysium | dense irregular collagenous connective tissue
Skeletal Muscle
(Cross Section)
Skeletal Muscle
(Logitudinal)
Skeletal Muscle
Esophagus
Cardiac Muscle
Striated | Involuntary Control
Key ID
Cross Section | large central nuclei, uninucleated, binucleated or multinucleated, myofibrils located around periphery of cell
Longitudinal Section | large central nuclei, uninucleated, binucleated or multinucleated, striated banding pattern, intercalated disks (gap junctions), branching
Number of nuclei and myofibrils diminished in comparison to skeletal muscle
Connective Tissue
Endomysium | loose connective tissue
Cardiac Muscle
(Cross Section)
Cardiac Muscle
(Longitudinal)
Cardiac Muscle
(Longitudinal)
Smooth Muscle
Involuntary Control
Location
Walls of vessels, respiratory passage, gastrointestinal track (i.e. outer longitudinal, inner circular, larger ducts of compound glands, dermis of skin
Key ID
Cross Section | oval shaped nucleus, cork screw shaped nucleus only during contraction
Longitudinal Section | oval shaped nucleus, fusiform (spindle shaped), elongated
Smooth Muscle
(Longitudinal)
Smooth Muscle
Esophagus
