Download Muscle and Nerve tissue

Muscle and Nerve tissue
Skeletal muscle or Voluntary muscle
Arranged in bundles of fibers.
Cellular appearance:
• Long fibrous cells
• usually stain pink with purple nuclei
• many striations
• Multinucleated
• Not branched,
• No intercalated discs
Striations
Cardiac Muscle
• Found in the heart
• Involuntary muscle
• Arranged in layers surrounding the heart
• Cellular appearance: Branching fibers stain
pink with purple nuclei
• Striations but fewer than in skeletal muscle
• Appearance of banding due to
intercalated discs
• Fewer nuclei than in skeletal muscle
Intercalated
disc
Smooth Muscle: In the visceral tissues:
Found around hollow organs, digestive
system, arteries and veins
• Involuntary muscle
• Arranged in layers around perimeter of
organs
• Cellular appearance: No fibers, stains
pink with purple nuclei
• No striations, no banding
• Elongated, ovoid cells.
• Overlapping cells with a single nucleus
Nerve Tissue
• Dendrites receive input
• Axons Send output
• Signal is based on an
electrochemical gradient
maintained by active transport of
sodium and potassium
• There are other types of neurons
than the type shown. To be
discussed later.
Cell Body
Axon