Lecture 2-Histology

Lecture 2-Histology - Histology to Definitions o...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Histology September 14, 2007 to September 19, 2007 Definitions: o Tissue-usually defined as an aggregation of similar cells with similar function Definition is simplistic and misleading Better definition from Le Gros Clark (handout) o Histology-study of anatomy at the tissue level of organization Kinds of tissues o Epithelia o Connective tissue o Supporting tissue o Blood and related tissues o Muscle tissue o Nerve tissue Epithelia o Singular-epithelium o Sheet-like tissues that cover free surfaces or lie ducts, sacs, or tubes, and are attached to a basement membrane o Example-skin epidermis o Types of epithelia: Described according to stratification Stratification-layering of the tissue Simple-one layer of cells o Example-most epithelia of the kidney tubules Stratified-two or more layers of cells o Example-epidermis Psuedostratified-all cells attach to basement membrane but only some reach the free surface o Example-epithelium lining the colon Transitional-specialized form lining urinary bladder; capable of great stretching o Example- lining of urinary bladder and various ducts associated with the urogenital system See Histology 4 for diagrams Described according to cell shape Squamous-cells are wider than they are tall; flat cells Cuboidal-cube shaped cells Columnar-cells that are column like; cells taller than they are wide See Histology 5
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/17/2008 for the course BIOSC 1220 taught by Professor Bledsoe during the Spring '08 term at Pittsburgh.

Page1 / 3

Lecture 2-Histology - Histology to Definitions o...

This preview shows document pages 1 - 2. Sign up to view the full document.

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