You are using a slide set that belongs to our Anatomy and Physiology course. Please handle with care, and replace slides carefully in their appropriate slots. Illustrate the tissue structure in the indicated slides at 400x power, no smaller than ½ page each. Make the cells large enough so that they clearly demonstrate the differences between the various tissues. Include and label the features listed for each slide. See your biology text book or any A&P text for more information.

EPITHELIAL TISSUES:

Slide 2. Simple Squamous (top view of peritoneum, a mesothelial abdominal tissue)

cell boundaries edge of cell membrane

nucleus holds genetic material

nucleolus site of RNA synthesis

cytoplasm

Slide 3. Simple Cuboid (cross section, from kidney, tubule lining)

basement membrane found on all epithelial tissues, bonds them to underlying tissue

duct lumen space within the duct

nucleus

brush border (microvilli) proximal convoluted tubules (incr. surf. area)

Slide 4. Simple Columnar (lining of Nectaris [a newt] intestine)

basement membrane

goblet cells in epithelial layer, they make mucous

microvilli dramatically increase surface area, speeding up absorption

chromatin stained genetic material within nucleus

lamina propria connective tissue which underlies all mucous membrane

Slide 5. Stratified squamous epithelium (lining of dog esophagus)

basement membrane

stratum basale cells adhered directly to the basement membrane

lamina propria as in previous slide

flaking off squamous cells

CONNECTIVE TISSUES: (always consist of cells embedded in prominent matrix)

Slide 11. Hyaline cartilage (from tracheal rings in trachea)

chondrocytes cartilage cells which maintain the tissue

matrix material in which the chondrocytes are embedded

lacunae "pools" in which the chondrocytes are housed

perichondrium connective tissue surrounding the cartilage

Slide 14. Bone, ground

osteocytes cells which maintain bone

canaliculi protoplasmic extensions fr osteocytes into surrounding bone

lamellae concentric circles of bone built up around the central canal

central canal carries blood vessel supplying nutrients to bone

Haversian system whole system of cells and matrix surrounding central canal