Skip to main content
Applied Microscopy
Fig. 5 | Applied Microscopy

Fig. 5

From: Fine structure of the intercalated disc and cardiac junctions in the black widow spider Latrodectus mactans

Fig. 5

Transmission electron micrographs of the sarcolemma and its cardiac junctions in the spider L. mactans. a: Sarcolemma (Sm) of the cardiac muscle is composed of two dense membranes separated by a relatively clear space. b: Intercalated disc (Cd) shows deep invagination of sarcolemma to increase its surface area. c: Intercalated disc shows a Z-line (Z) connection to sarcolemma (rectangles) and T-tubules (Tt). d: Both of adherens junctions (rectangle) are observed in the sarcolemma of the intercalated disc. Mf: myofibril, Mi: motochondria. Scale bars indicate 1 μm (A-C) and 0.5 μm (D), respectively

Back to article page