Tissues Flashcards Preview

Anatomy and Physiology > Tissues > Flashcards

Flashcards in Tissues Deck (19):
1

Avascular

Lacks blood. Epithelia

2

Tight Junction

Interlocking membrane proteins bind the lipid portion of the two plasma membranes. Adhesion belt does not allow passage of water. TIGHT=sticks together, nothing gets by

3

Gap Junction

Allows for communication between cells. Interlocking transmembrane proteins provide a channel between cells.

4

Desmosome

CAMS and proteohlycans link plasma membranes. Strong, resist stretching and bending

5

simple epithelium

one cell layer thick, covers basement membrane. IE blood vessels

6

stratified epithelium

several layers of cells cover basement membrane in areas that are exposed to more stressors like the surface of the skin and the lining of the mouth

7

Exocrine Gland

release secretions into ducts that open onto an epithelial surface...specific duct to specific location. IE sweat and gastric glands

8

Endocrine Gland

Secret hormones into the extra cellular space and then into blood stream to be circulated throughout the body. IE thyroid and adrenal gland

9

ground substance

a fluid which helps make up the matrix which surrounds cells

10

Matrix

extracellular fibers and ground substances that surround a cell

11

Mesenchyme

"Embryonic connective tissue"1st connective tissue to appear in an embryo, contains an abundance of stem cells and gives rise to all other connective tissue

12

Lacunae

Small chambers occupied by chondrocytes in the cartilage matrix

13

Perichondrium

A fiberous tissue that sets cartilage apart. It contains two distint layers that provide mechanical support and protection and attaches the cartilage to other structures

14

Periosteum

the membrane, or specialized connective tissue, that lines the outer surface of bones but not at the joint

15

Mucosae

or mucous membrane, line passage ways that communicate with exterior. keeps epithelial surface of passageways moist to reduce friction and facilitate absorption

16

hypodermis

a layer of areolar tissue and fat also known as the superficial fascia. It separates the skin from underlying tissues and organs, provides insulation and lets the skin move independently

17

intercalated discs

specialized regions where cardiac uschle tissue connects. The membranes are locked together by desmosomes, proteoglycans and gap junctions

18

Neuroglia

supporting cells in neural tissue

19

Necrosis

tissue destruction that occurs after cells are injured or killed