Connective Tissues
Cell Types and Connections in Tissues
Layers of the Epidermis
Misc.
100

Attaches skin to underlying tissues. Loose packing material of most organs and tissues, also known as stroma.

Loose Connective Tissue

100

Phagocytize or provide protection. Has 2 types: fixed and wandering.

Macrophages

100

Deepest portion of epidermis and a single layer. Cells become keratinized.

Statum Basale

100

Muscle that attaches to bones, moves the entire body. Striated and voluntary.

Skeletal Muscle

200

Tendons:Connects muscles to bones. 

Ligaments:Connects bones to bones. 

Has abundant collagen fibers that resist stretching.

Dense Regular Connective Tissue

200

Connection: holds cells together, forms a permeability barrier. 2 types: zonula adherens, zonula occludens.

Tight Junctions

200

Thin, clear zone, only found in palms and soles of feet.

Stratum Lucidum

200

Has all 5 layers in the epithelium, found on palms, fingertips, soles of feet. Fingerprints and footprints.

Thick Skin

300

Supporting Connective Tissue, elastic and collagen fibers, rigid but elastic properties.

Elastic Cartilage

300

Protein channels aid intercellula communication. Coordinate functions of cardiac and smooth muscle.

Gap Junctions

300

Most superficial and consists of cornified cells

Stratum Corneum

300

Provides protection against UV light. Group of chemicals derived from amino acid and tyrosine. Can be yellowish or reddish.

Melanin

400

Composed of collagen fibers and elastic fibers, able to stretch and recoil like a rubber band, found in vocal cords.

Dense Regular Elastic Connective Tissue

400

Common in some tissues (dermis of skin); rare in some (cartilage)

Adipose or Fat Cells

400

Limited cell division, cells shrink from where desmosones connect, lamellar bodies and additional keratin fibers form.

Stratum Spinosum 

400

Superficial layer of the dermis, areolar with lots of elastic fibers.

Papillary

500

Supporting Connective Tissue, large amounts of collagen fibers, smooth surface. Is found in the trachea, ribs, nose and has some flexibility.  

Hyaline Cartilage

500
Disk-shaped regions of cell membrane; often found in areas that are subjected to stress. Contain especially adhesive glycoproteins.

Desmosomes

500

Name the 5 layers of the epidermis in order from deepest->superficial.

Stratum Basale, Stratum Spinosum, Stratum Granulosum, Stratum Lucidum, Stratum Corneum.

500

Muscle that causes hair to "stand up straight" or goospbumps.

Arrector Pili

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