General Zoology - Laboratory Module 3: Histology and Animal Tissues

Flashcards covering the definition, components, and types of animal tissues including epithelial, connective, muscular, and nervous tissues based on the General Zoology Laboratory Module 3 transcript.

Histology

The study of tissue.

Epithelial tissue

Tissue composed of closely packed sheets of cells that cover the surface of the body or one of its cavities, playing roles in protection, secretion, and absorption.

Apical side

The side of epithelial tissue that is exposed to air or body fluids.

Basal side

The side of epithelial tissue that rests against the basement membrane.

Basement membrane

A non-cellular layer produced by epithelial tissue against which the basal side rests.

Connective Tissue

Tissue that provides support or protection, connects and binds different parts, and fills spaces between or within organs; it is the most abundant tissue in the body by weight.

Matrix

The substance scattered between the cells of connective tissues.

Muscular tissue

Tissue that facilitates movement through the contraction and relaxation of fibers; can be voluntary or involuntary.

Nervous tissues

Tissues adapted to accept and transmit impulses.

Neuron

The nerve cell, which is the basic unit of the nervous system.

Dendrites

Projections that convey impulses towards the cell body or, as per the FAQ, transmit impulses to the heart.

Axons

Projections that convey impulses away from the body or, as per the FAQ, transmit impulses AWAY from the heart.

Neuroglia

Cells that surround and support neurons both physically and biochemically.

Simple squamous epithelium

A type of epithelial tissue often studied in surface view.

Stratified Squamous epithelium

Epithelial tissue that can be categorized as Keratinized or Non-keratinized.

Simple cuboidal epithelium

A type of epithelial tissue often found in the kidney.

Simple columnar epithelium

A single layer of tall, column-like epithelial cells.

Transitional epithelium

A specialized type of epithelial tissue mentioned for various body locations.

Ciliated pseudo stratified epithelium

An epithelial specimen characterized by cilia and a layered appearance despite being a single layer.

Dense fibrous (regular) connective tissue

A connective tissue type with fibers arranged in a regular pattern.

Adipose tissue

A form of connective tissue used for storage and insulation.

Hyaline cartilage

A specific type of connective tissue highlighted for its distinct features and location.

Loose fibrous (areolar) tissue

A type of connective tissue that underlying epithelial tissue relies on for nutrients.

Skeletal muscle

A voluntary muscle tissue that may have multiple nuclei and striations.

Smooth muscle

An involuntary muscle tissue found in the digestive tube, also referred to as visceral tissue.

Cardiac muscle

Involuntary muscle tissue specifically located in the heart.

Mesenchyme

The substance from which connective tissue originates.

Avascular

A characteristic of epithelial tissue, meaning it lacks blood vessels.

Goblet cell

A cell type specifically associated with epithelial tissue.

Fibrosis

The process during which connective tissue replaces damaged tissue.