BHSC 1200 (CHAPTER 4) QUESTIONS AND ANSWERS
what are tissues? - Answers :tissues are groups of cells that are similar in structue and
perform a common or related function
4 main types of tissue
- epithelial tissue (covers)
- connective tissue (supports)
- muscle tissue (moves)
- nervous tissue (controls)
tissues are organized into organs and most organs contian all four tissue types
what is epithelial tissue and its (six) functions? - Answers :- epithelial tissue is a sheet of
cells that covers body surfaces or lines a body cavity and epithelium forms the
boundaries between different enviroments
6 functions of epithelila
- protection
- absorption
- filtration
- excretion
- secretion
- sensory reception
what are the two types of epithelial tissues? - Answers :1) Covering and lining
epithelium: forms the outer layer of the skin; dips into and lines the open cavities of the
urogential, digestive, and respiratory systems, and covers the walls and organs of the
closed ventral body cavity
2) Glandular epithelium: type of epithelial tissue specialized in the formation of glands,
which are structures that secrete substances for various functions in the body.
what are the 5 special characteristics of epithelium? - Answers :1. Polarity
2. Epithelial cells fit close toghether to form continous sheets
3. All epithelial sheets rest upon and are supported by connective tissues. In between
the epithelial and connective tissues there is a basement membrane that reinforces the
epithelial sheet and helps it resist stretching and tearing and defines the epithelial
boundary
4. Epithelium is avascular (contains no blood vessels) but is innervated meaning it
contains a nerve supply
5. Epithelium has a high regenerative capacity
How are epithelial tissues classified? - Answers :- Epithelium tissue is classified by the
number of cell layers and the shape of the cells.
Number of layers:
what are tissues? - Answers :tissues are groups of cells that are similar in structue and
perform a common or related function
4 main types of tissue
- epithelial tissue (covers)
- connective tissue (supports)
- muscle tissue (moves)
- nervous tissue (controls)
tissues are organized into organs and most organs contian all four tissue types
what is epithelial tissue and its (six) functions? - Answers :- epithelial tissue is a sheet of
cells that covers body surfaces or lines a body cavity and epithelium forms the
boundaries between different enviroments
6 functions of epithelila
- protection
- absorption
- filtration
- excretion
- secretion
- sensory reception
what are the two types of epithelial tissues? - Answers :1) Covering and lining
epithelium: forms the outer layer of the skin; dips into and lines the open cavities of the
urogential, digestive, and respiratory systems, and covers the walls and organs of the
closed ventral body cavity
2) Glandular epithelium: type of epithelial tissue specialized in the formation of glands,
which are structures that secrete substances for various functions in the body.
what are the 5 special characteristics of epithelium? - Answers :1. Polarity
2. Epithelial cells fit close toghether to form continous sheets
3. All epithelial sheets rest upon and are supported by connective tissues. In between
the epithelial and connective tissues there is a basement membrane that reinforces the
epithelial sheet and helps it resist stretching and tearing and defines the epithelial
boundary
4. Epithelium is avascular (contains no blood vessels) but is innervated meaning it
contains a nerve supply
5. Epithelium has a high regenerative capacity
How are epithelial tissues classified? - Answers :- Epithelium tissue is classified by the
number of cell layers and the shape of the cells.
Number of layers:
