Connective Tissue 9/14/2009

#29 Small Intestine

Collagen fibers and fibroblasts Fibroblasts Collagen fibers

#29 – Intestinal Villi Lamina propria

Lamina propria (Loose conn. tissue)

#20 or #40 Trachea Tracheal ring - cartilage

Plasma cells

Eccentrically located nucleus Cartwheel appearance of nucleus Basophilic cytoplasm Egg-shaped cell with clear outline

#26 lymph node

Macrophages Kidney bean shaped nucleus (indented) Eosinophilic cytoplasm with bubbly appearance Ingested materials in the cytoplasm Fuzzy cell border (outline)

Macrophage Plasma Cell

#152 Pharynx - fat cells -Unilocular adipose tissue -displaced flattened nuclei

Slide H2 Brown Fat -Multilocular adipose tissue -Spherical nuclei

#160 Mast cells

#160 Mast cell

#27 Lymph node stained with H & E – Reticular connective tissue

#28 Lymph node stained with silver – Reticular connective tissue

Dense irregular CT in the dermis Skin #106 or #112 Dermis

#33 Dermis of skin (aldehyde Fuchsin stain) Dense irregular connective tissue with elastic fibers

Elastic Fibers in dense irregular CT - slide 33 (Verhoeff stain)

#250 Vagina ( Dense irregular CT) H & E Trichrome

Skeletal muscle Dense regular CT (tendon) Dense regular CT #112 (or #106) Musculo-tendon junction

#34 Tendon (Dense regular connective tissue)

#34 Tendon (X-section)

Slide #36, aorta, aldehyde fuchsinSlide 88, aorta. H & E Elastic connective tissue