biol 223 lab 1

histology

studies of microscopic tissues structures

human body tissues consist

• epithelium tissues

• muscle tissues

• connective tissues

• nervous tissues

epithelium tissues

covers body surface exposed to the environment and lining hollow organ/body cavities

basement membrane

thin extracellular structure consisting of basal and reticular lamina

basal surface

epithelial tissue facing the basement membrane

apical surface

epithelial tissues facing the environment, lumen or body cavity

simple squamous epithelium located

• alveoli

• glomerular capsule

• lining the body cavities (mesothelium)

• lining of the heart/blood vessels (endothelium)

mesothelium

lining of internal body cavity

simple cuboidal epithelium located

• thyroid gland

• lining kidneys tubules

simple columnar epithelium located

• lining stomach

• lining gallbladder

• lining small/large intestine

cilia

hair like structure that stick out on surface - allow substance to move across surface

• found on apical cells

microvilli

finger like membrane protection on surface that increase surface area - increase membrane surface area to transport

psudostratified columnar epithelium located

• lining the trachea

• lining the nasal cavities

goblets cells

produce mucus

stratified squamous epithelium

• epidemis

• lining the esophgus

• lining the anus

• lining the rectum

• lining the vagina

transitional epithelium located

• lining the ureters

• lining the urinary bladder

multinucleate

each cells will have several nuclei

muscle tissues located

• skeletal muscle

intercalated disks

specialized cells connection that prevent cells from separating

cardiac muscle located

• heart

smooth muscle located

• blood vessels walls

• wall of hollow organs