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19 Cards in this Set

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very low power view of a developing pubic symphysis, note sites, indicated by arrows, where the skeletal muscle fibers insert into the dense connective tissue surrounding the bony symphysis. These attachments may be considered myotendinous junctions and are seen to better effect in subsequent images.
What is this slide taken from?
What do the arrows indicate?
What type of junction can be found in this slide?
At low power, one may observe the transition between muscle tissue and the dense connective tissue (tendon equivalent) which occurs at the myotendinous junction.
the myotendinous junction. The skeletal muscle fibers taper at their ends and their surrounding connective tissue investments become continuous with the dense connective tissue of the tendon.
What is the structure demarcated by the black line?
dense CT of tendon
what type of tissue is indicated by the arrows, what is its function?
several skeletal muscle fibers and the nerve fiber (axon) that is innervating them. Each terminal arborization of the axon ends in an expanded synaptic region that contacts the muscle fiber and forms the motor end plate.
What are these structures? What are they part of?
teased smooth muscle fibers. Note their long, spindly (fusiform) morphology and the single, centrally-placed nucleus.
Identify strands in slide
Arrow points to CT surrounding a vascular structure, the CT is surrounded by interlacing bundles of smooth muscle comprising the bulk of the myometrium
What type of tissue is the arrow pointing to? What is the surrounding tissue?
smooth muscle bundles (variable orientation) characteristic of the myometrium. Note the abundance of nuclei, a feature which may help distinguish this tissue from dense connective tissue which typically has fewer nuclei per unit area.
What type of tissue is indicated by the arrow?
the abundance of nuclei typical of this tissue (as opposed to dense connective tissue) as well as the characteristic morphology of smooth muscle nuclei. Reflecting the shape of the cell, smooth muscle nuclei are also elongated (when seen in longitudinal section), fairly euchromatic, and some may appear to contain kinks if the cell itself is in a contracted state.
What type of tissue is this? How do you Know?
Smooth Muscle
what type of tissue is this?
Dense Irregular CT

What type of tissue is this? (Central portion)

What kind of cells are the nuclei in bottom left quadrant?
Smooth muscle
Arrow points to an elongated, euchromatic nuclei of the smooth muscle cells.
What type of tissue is this? What does the arrow point to?
This is a very low power view of a section through the ectocervix stained with Masson's trichrome. With this stain, collagen appears greenish-blue, while epithelial and muscle tissues will stain a reddish-purple color.
What type of stain is this? What type of tissue appears greenish-blue? What type of tissue appears reddish-purple?
Smooth Muscle (ectocervix)
Masons Trichrome
Name cell type and stain type
collagenous tissue is staining bluish-green.
What type of tissue is indicated by the far right arrow
Smooth muscle is found in the outer wall of the intestine (arrows) where it is typically arranged into inner circular and outer longitudinal layers.
What type of tissue does each arrow point to? Where might this be found?
this whole mount preparation of cardiac muscle fibers reveals, somewhat, the branching morphology and single, centrally-placed nuclei that help to distinguish this tissue from skeletal muscle.
What type of tissue is this? What are the identifying features?
and intercalated disc, representing a junctional complex between one cardiac muscle fiber and the next
What is indicated by the arrow?
A high power view through a cross section of cardiac muscle fibers demonstrates well the centrally-located nucleus that helps to distinguish this tissue from skeletal muscle. The myofibrillar architecture of the muscle cells is also seen to good effect in this image.
What is type of tissue is this? How do you know?