BIO201week4[1]

BIO201week4[1] - Histology Histology Study of Tissues...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Histology Histology Study of Tissues Epithelial Tissue Connective Tissue Nervous and Muscular Tissue The Study of Tissues 200 Different cell types Four primary tissue classes epithelial tissue connective tissue muscular tissue nervous tissue Histology (microscopic anatomy) study of tissues organ formation Organ = structure with discrete boundaries composed of 2 or more tissue types Tissue Techniques and Sectioning Preparation of histological specimens fixative prevents decay (formalin) sliced into thin sections 1 or 2 cells thick mounted on slides and colored with histological stain stains bind to different cellular components Sectioning reduces 3-dimensional structure to 2-dimensional slice Epithelial Tissue Layers of closely adhering cells Flat sheet with upper surface exposed to the environment or an internal body cavity No blood vessels underlying connective tissue supplies oxygen Rests on basement membrane thin layer of collagen and adhesive proteins anchors epithelium to connective tissue Simple Versus Stratified Epithelia Simple epithelium contains one layer of cells named by shape of cells Stratified epithelium contains more than one layer named by shape of apical cells Simple Squamous Epithelium Single row of flat cells Permits diffusion of substances Secretes serous fluid Alveoli, glomeruli, endothelium, and serosa Simple Cuboidal Epithelium Single row cube-shaped cells with microvilli Absorption and secretion, mucus production Liver, thyroid, mammary and salivary glands, bronchioles, and kidney tubules Simple Columnar Epithelium Single row tall, narrow cells oval nuclei in basal half of cell Absorption and secretion; mucus secretion Lining of GI tract, uterus, kidney and uterine tubes Pseudostratified Epithelium...
View Full Document

Page1 / 34

BIO201week4[1] - Histology Histology Study of Tissues...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online