Tissues

Question 1

Avascular

Answer 1

Lacks blood. Epithelia

Question 2

Tight Junction

Answer 2

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

Question 3

Gap Junction

Answer 3

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

Question 4

Desmosome

Answer 4

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

Question 5

simple epithelium

Answer 5

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

Question 6

stratified epithelium

Answer 6

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

Question 7

Exocrine Gland

Answer 7

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

Question 8

Endocrine Gland

Answer 8

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

Question 9

ground substance

Answer 9

a fluid which helps make up the matrix which surrounds cells

Question 10

Matrix

Answer 10

extracellular fibers and ground substances that surround a cell

Question 11

Mesenchyme

Answer 11

“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

Question 12

Lacunae

Answer 12

Small chambers occupied by chondrocytes in the cartilage matrix

Question 13

Perichondrium

Answer 13

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

Question 14

Periosteum

Answer 14

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

Question 15

Mucosae

Answer 15

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

Question 16

hypodermis

Answer 16

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

Question 17

intercalated discs

Answer 17

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

Question 18

Neuroglia

Answer 18

supporting cells in neural tissue

Question 19

Necrosis

Answer 19

tissue destruction that occurs after cells are injured or killed