Anatomy: Tissues Chapter 4 Flashcards
(31 cards)
Epithelial Tissue
is a the covering, lining, and glandular tissue of the body. Its functions include protection, absorption, excretion, filtration, secretion, and sensory reception.
epithelium: Greek epi = upon, and thele = the nipple; the cell layer lining the internal and external surfaces of the body.
Simple Epithelium
One layer of cells
Stratified Epithelium
Many layers
Squamous Epithelium
Relatively flat cells
Cuboidal Epithelium
Shaped like cubes
Columnar Epithelium
Shaped like columns
Pseudostratified Columnar Epithelium
Simple columnar that appears to be stratifies but is not. Has goblet cells and cilia on the surface. Will line organs like the digestive tract to move things along.
Transitional Epithelium
Is a modified stratified squamous epithelium, adapted for responding to stretch. found in the urinary tract.
gland
one or more cells specialized to secrete a product.
Connective Tissue
Most abundant and widely distributed tissue of the body. Functions include support, protection, binding, insulation, and transportation.
Nervous Tissue
Forms organs of the nervous system. it is composed of neurons and supporting cells.
Neurons
branching cells that receive and transmit electrical impulses. involved in body regulation. Responsible for communication throughout the body.
Cell body+axon+dendrites= neurons
Muscle tissue
consists of elongated cells specialized to contact and cause movement.
Skeletal muscle
Smooth Muscle
cardiac Muscle
What does inflammation do?
is the bodys response to injurt. Tissue repair begins with inflammation process. It may lead to regeneration, fibrosis, or both.
Regeneration
tissue repair begins with organization, suring which the blood clot is replaced by granulation tissue. If the wound is small enough and the damaged tissue is actively mitotic, the tissue will regenerate and cover the fibrous tissue(scar tissue).
Fibrosis
When a would is extensive or the damaged tissue is amitotic, it is replaced with fibrous connective tissue (scar tissue)
Ectoderm
nervous tissue
Mesoderm
forms muscle and connective tissue
Endoderm
Epidermis of the skin and its hair follicles, epithelial lining of the mouth, cornea lens of the eye, sensory receptors in epidermis, adrenal medulla, tooth enamel,
Apical
“Free” surface
What type of tissue is the basement membrane?
Connective tissue
Is the top layer of skin dead or alive?
Keratinized “dead” cells
What type of epithelium is in intestinal epithelium?
Simple columnar epithelium with microvilli and goblet cells.
What does ‘chondro’ refer to?
Cartilage