tissue structure Flashcards
1
Q
types of nervous tissue
A
- brain
- spinal cord
- nerves
2
Q
types of muscle tissue
A
- cardiac
- smooth
-skeletal
3
Q
types of connective tissue
A
- fat / other soft padding tissue
- bone
- tendon
4
Q
types of epithelial tissue
A
- lining of GI tract organs / other hollow organs
- skin surface (epidermis)
5
Q
basic structure and function of epithelial tissue
A
- lines body surfaces, inside of hollow organs, forms glands
- cells have distinct basal and apical surfaces (directionality)
- tissue mostly avascular
- most epithelial tissues have ability to rapidly replace damaged tissue
6
Q
how is the structure of epithelial cells related to its function
A
- more layers = protection
- fewer layers = easier diffusion/secretion/absorption
- thin cells = easy diffusion
- thick cells = volume for synthesis of secretions or absorption of nutrients
- cilia = movement of substances along surface, greater surface area
7
Q
types of epithelial tissue vary based on: (2)
A
1) cell shape
2) number of layers
8
Q
basic structure and function of connective tissue
A
- forms the framework of organs
- connects organs to each other
- composed of a small number of cells and a large amount of extracellular material called the matrix
- the matrix of each specific type of connective tissue will vary
9
Q
common components of the matrix
A
- fibres (reticular, elastic, collagen)
- cells (adipocytes, mesenchymal, fibroblast, macrophage)
- ground substance (can be liquid, gel-like, and calcified)
10
Q
what is the function of fibres
A
to increase strength and elasticity
11
Q
function of fibroblast cells
A
secrete fibres
12
Q
function of mesenchymal cells
A
connective tissue stem cells, found in loose connective tissue in adults
13
Q
function of neutrophil, lymphocytes, mast cells
A
to prevent infection
14
Q
function of macrophages
A
to remove pathogens
15
Q
function of adipocytes
A
store fat
