Chapter 5, Lesson 1: The Study of Tissues

Flashcards from Chapter 5, Lesson 1 of McGraw Hill Anatomy and Physiology, Ninth Edition, by Kenneth S. Saladin.

Categories of tissues

Epithelial, connective, nervous, and muscular tissue

Organ

A structure with discrete boundaries that is composed of two or more tissue types

Histology

The study of tissues and how they are arranged into organs; also called microscopic anatomy

Tissue

A group of similar cells and cell products working together to perform a specific role in an organ

Matrix

Extracellular material composed of fibrous proteins and ground substance

Ectoderms

Outer layers of cells; epidermis and nervous system

Endoderms

Inner layers of cells; mucous membrane lining of digestive and respiratory tracts

Mesoderms

Middle layers of cells; gelatinous tissues of collagen that give rise to cartilage, bones, and blood

Stains

A tissue that is mounted on slides and artificially colored to show different cellular components in a section

Histological section

Tissue sliced into thin sections one or two cells, may miss the cell nucelus or not show continuous ducts

Longitudinal section

Tissue cut on its long axis, similar to the frontal or sagittal views

Cross (transverse) section

Tissue cut perpendicular to the long axis

Oblique section

Tissue cut at an angle between cross and longitudinal sections

Smear

Rubbing tissue across a slide; used for blood

Spread

Stretching out membranes and cobwebby tissues on a slide