Microscopic Anatomy Flashcards
Histology
Study of tissues
Ectoderm
Outer most layer- hair, nails, skin
Mesoderm
Middle layer- Circulatory system, lungs, musculoskeletal
Endoderm
Innermost layer – digestive system, glands
What does epithelial tissue have
Cells, basement membrane, avescular (has no blood vessels)
Epithelial tissue function
Filtration, absorption, secretion, protection
Epithelial tissue specialisations
Cell junctions, Cilia, glands
What is the epithelial lining split into
Complex and simple
What are complex epithelium linings
Stratified, pseudostratified, transitional
What are the simple epithelium linings
Squamous, cuboidal, columnar
How are epithelium names given
Name the top layer of cells
What do you cell junctions have
Gap junctions, tight junctions, anchoring junctions
What is in a protective layer
Cilia, microvilli, keratin
What type of glands are there in the epithelial cells
Exocrine gland- via ducts (eg. sweat saliva and breastmilk)
Endocrine gland- ductless and secretes directly into the blood eg. thyroid, pituitary
What do glands do
Secrete mucus