Anatomy and Physiology / Histology - Exam 2 Assorted Images

Histology - Exam 2 Assorted Images

Anatomy and Physiology27 CardsCreated 7 months ago

Caveolae are small invaginations of the plasma membrane in smooth muscle cells. They function in calcium storage and signal transduction, playing a key role in contraction. Hemidesmosomes are anchoring junctions that attach epithelial cells to the basement membrane. They contain integrins that link the cytoskeleton to extracellular matrix components. Dense bodies (DB) in smooth muscle act like Z-discs, anchoring actin filaments. The nucleus appears corkscrew-shaped during contraction due to the twisting of the cell.

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Caveolae of smooth muscle cell

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Key Terms

Term

Definition

Caveolae of smooth muscle cell

Hemidesmosomes

Smooth Muscle Fiber Cell - with dense bodies labeled DB and corckscrew nucleus

Red arrows - Ependymal cells (glial cell) line central canal of spinal cord apical surfaces has cilia.

Autonomic Ganglia - Blue arrow - sattelite cell

Desmosome (Macula adherens)

Autonomic ganglia - Peripheral nervous system. Differ from spinal ganglia by having multipolar neurons with dendrites.

Skeletal Muscle - Black Arrows are A Bands (dark staining) BLue arrows are Z lines within A bands

Glial cell (support of nervous system) Red arrows-astrocytes (see fine processes from cell body)

Carcinoma

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Histology - Exam 2 Assorted Images

Term	Definition
	Caveolae of smooth muscle cell
	Hemidesmosomes
	Smooth Muscle Fiber Cell - with dense bodies labeled DB and corckscrew nucleus
	Red arrows - Ependymal cells (glial cell) line central canal of spinal cord apical surfaces has cilia.
	Autonomic Ganglia - Blue arrow - sattelite cell
	Desmosome (Macula adherens)
	Red arrows-Pyramidal cells. Note processes (less extensive than Purkinje cells), cell body tends to have pyramidal appearance.
	Peripheral Nerve
	Autonomic ganglia - Peripheral nervous system. Differ from spinal ganglia by having multipolar neurons with dendrites.
	Blue Arrows point to PNS Schwann Cells
	TIght Junction (zona occludens)
	choroid epithelial cell - neuroglia - red arrows indicate RBCs
	Dorsal Root Ganglion (large pseudounipolar neurons - look for tightly packed neurons with lots of satellite cells)
	Myoepthelial Cells - unlabeled arrow points to them
	Purkinje cells (cerebellum) Red arrows -cell bodies (see large dendritic trunk with branches-tree) Blue arrows - axons of the Purkinje cells
	Skeletal Muscle - Black Arrows are A Bands (dark staining) BLue arrows are Z lines within A bands
	Glial cell (support of nervous system) Red arrows-astrocytes (see fine processes from cell body)
	Carcinoma
	Multipolar motor neuron in spinal cord. Yellow arrows - dendrites (basophilic material is Nissl substance) Green arrow - axon hillock
	CNS Synapse - glutamate (+) GABA (-)
	Adenoma
	ependymal cells
	Gap Junctions, No CAMs, cells connected via Connexion proteins, regulated opening and closing
	top to bottom - zona occuludens, zona adherens, and macula adherens (desmosome)
	Tight Junction (Zonula occludens, occluding junction) - No CAMS, cells connected by transmembrane proteins. ONce formed, functional polarity established.
	Basement Membrane
	PNS Sensory ganglia - red arrow points to capsule

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