Chapter 7 - Tissues Flashcards
basal lamina
glycoprotein and proteoglycan component of basement membrane secreted from epithelium
reticular lamina
collagen fiber portion of basement membrane secreted from underlying connective tissue (areolar tissue)
desmosomes
cell connections with cadherin filamentous proteins
tight junctions
cell connections with occludin integral proteins
gap junctions
cell connections with connexon transmembrane proteins
Membranous Epithelium Characteristics
- tightly packed cells
- cells in layers
- avascular
- innervated (nerve supply)
- polarity (difference in apical and basal surfaces)
- basement membrane
- house receptors
Simple Squamous
serous membranes (mesothelium), endothelium, filtering devices in kidney, sacs in lungs
Stratified Squamous
epidermis (stratum corneum), linings of mouth, esophagus, and vagina, and wall of urethra
Simple cuboidal
tubule of kidney, glands, ovary surface, passage of material between blood and kidney
Stratified cuboidal
ducts of glands
Simple columnar non-ciliated
inner lining of digestive tract and gall bladder (mucous membrane)
Simple columnar ciliated
oviducts, tubes in lungs (moves mucus and dust)
Stratified columnar
male’s urethra and ducts of glands
Pseudostratified ciliated columnar
contains goblet cells, lines nasal cavity, trachea, and male’s urethra
Transitional
lining of urinary bladder, ureters, and part of urethra
Areolar tissue
Loose Connective Tissue
In dermis and hypodermis, beneath membranous epithelium
Lamina propria
areolar tissue beneath mucous membrane
Adipose tissue
Loose Connective Tissue In hypodermis (subcutaneous region)
Reticular tissue
Loose Connective Tissue Internal framework (stroma) of liver, spleen, lymph nodes, and bone marrow
Elastic Tissue
Dense Connective Tissue
Elasticity to blood vessels, lungs and vocal chords, and nuchal ligament of neck
Dense Regular Tissue
Dense Connective Tissue
In tendons and ligaments
Dense Irregular Tissue
Dense Connective Tissue
In dermis and coverings of kidneys, bones (periosteum and endosteum), and testes
Hyaline Cartilage
Connective Tissue (avascular) Articular region of bones, forms epiphyseal disks/plates, costal cartilage of ribs, nose, larynx, and trachea
Fibrocartilage
Connective Tissue (avascular) Intervertebral discs, pubic symphysis, and menisci
Elastic Cartilage
Connective Tissue (avascular) In ear and epiglottis
Septicemia
blood poisoning from extensive tissue necrosis (gangrene)
Ptomaine
“corpse”; toxic alkaline material released when bacteria decompose certain amino acids
Cadaverine
forms when bacteria decompose amino acid lysine
