Chapter 5 Tissues Pt1 Flashcards
1
Q
Name the four major types of tissues.
A
Epithelial
Connective
Muscle
Nervous
2
Q
Characteristics of Epithelial Tissues (9)
A
- covers organs and the body
- lines body cavities and hollow organs
- has a free surface
- has a basement membrane
- avascular ( no blood flow; heals poorly)
- cells readily divide and tightly packed
- cells often have desmosomes
- function in protection, secretion, absorption, excretion
- classified according to cell shape and # of cell layers
3
Q
Types of Epithelial Tissues (9)
A
- Simple Squamous ET
- Simple Cuboidal ET
- Simple Columnar ET
- Pseudostratified Columnar ET
- Stratified Squamous ET
- Stratified Cubodial ET
- Stratified Columnar ET
- Transitional ET
- Glandular Epithelium
4
Q
Simple Squamous ET
A
- single layer of flat cells
- substances pass easily through
- line air sacs, blood vessels, and lymphatic vessels
5
Q
Simple Cuboidal ET
A
- single layer of cube-shaped cells
- line kidney tubules and ovaries and ducts of some gland
6
Q
Simple Columnar ET
A
- single layer of elongated cells
- cilia aid in moving eggs through uterine tubes
- line uterus, stomach and intestines
7
Q
Pseudostratified Columnar ET
A
- single layer elongated cells
- appear striated
- often have cilia
- often have goblet cells
- line respiratory passage ways
8
Q
Stratified Squamous ET
A
- many cells layers
- top cells are flat
- can accumulate keratin (protein)
- outer layer of skin
- line oral cavity, throat, vagina, and anal canal
9
Q
Stratified Cuboidal ET
A
- 2-3 layers
- cube-shaped cells
- line ducts of mammary glands, sweat glands, salivary glands, and the pancreas
10
Q
Stratified Columnar ET
A
- top layer of elongated cells
- cube-shaped cells in deeper layers
- line vas deferens, male urethra, and part of the pharynx
11
Q
Transitional ET
A
- many cell layers
- specialized to change in response to increased tension
- line urinary bladder, ureters and part of urethra
12
Q
Glandular Epithelium
A
-made of cells that are specialized to produce and secrete substances
13
Q
Endocrine Gland
A
- are ductless
- secretes products into tissue fluid or blood
14
Q
Exocrine gland
A
- have ducts
- secretes products into ducts that open onto a surface
15
Q
Types of Glandular Secretions
A
- merocrine glands
- Apocrine glands
- Holocrine glands
