Midterm Lab: Epithelial Tissues Flashcards
In animals, several cells collect together to form:
Tissues
The study of tissues is called:
Histology
What are the 2 major groups of tissues?
Germ and Somatic
What are the germ cells?
Reproductive cells: Sperm and Ova
All germ cells are …?
Haploid
Other than the two germ cells, what tissue composes the rest of the body?
Somatic tissues
What are the type of Somatic tissues?
Epithelial
Connective
Muscle
Nervous
What type of cells are most Somatic cells?
Diploid
All epithelial tissues have an exposed surface referred to as the
Apical Surface
All epithelial tissues have an attached, underlying surface called the
Basement membrane
Epithelial tissues are the only tissues that are characterized by cells that are ___ ___ ___ to form ____ layers.
Tightly packed together;
protective
Epithelial tissues are named in the way they are classified: by cell ___, special features if present, and cell ___.
Cell layering
Cell Shape
What are the types of epithelial tissue cell layering?
Simple
Stratified
Pseudostratified
Cell layer that has one layer of cells
Simple
Cell layer that has more than one layer of cells
Stratified
Cell layer that has is false layering; appears stratified but all cells touch the basement membrane
Pseudostratified
What is the surface feature of epithelial tissue that is sometimes present?
Cilia
What are the types of epithelial cell shapes?
Squamous
Cuboidal
Columnar
Cell shape that appears flattened (observed from one side)
Sqaumous
Cell shape that appears “cube-shaped”; equal in height and width.
Cuboidal
Cell shape that appears “column-shaped”, taller than it is wide.
Columnar
What is the classification, aside from it being a major category of germ, of Ovum cells?
Simple columnar epithelial tissue
What is the classification, aside from it being a major category of germ, of Sperm cells?
Pseudostratified ciliated columnar epithelium
Where is simple squamous epithelium located in the body?
Alveoli (in lungs)
Endothelium (inner lining of blood vessels)
What are the items to identify on the simple squamous epithelium slide?
Nucleus
Where is stratified squamous epithelium located in the body?
Epidermis
Oral Cavity
What are the items to identify on the stratified squamous epithelium slide?
Apical surface
Basement membrane
Nucleus
Where is simple cuboidal epithelium located in the body?
Kidney tubules
Exocrine gland ducts
What are the items to identify on the simple cuboidal epithelium slide?
Apical surface
Lumen
Basement membrane
Nucleus
Where is simple columnar epithelium located in the body?
Linings of stomach and intestines
What are the items to identify on the simple columnar epithelium slide?
Apical surface
Basement membrane
Nucleus
(sometimes they have goblet cells and microvillae)
Where is pseudostratified ciliated columnar epithelium located in the body?
Lining of trachea
Nasal cavity
What are the items to identify on the pseudostratified ciliated columnar epithelium slide?
Apical surface Basement membrane Nucleus Cilia Goblet cells (secrete mucous)
All epithelial sheets rest upon and are supported by
Connective tissue
What makes up the major category of tissues?
Germ
Somatic
What are the categories of tissues?
Epithelial
Connective
Muscle
Nervous
Where is transitional epithelium located in the body?
Lines the ureters, bladder, and part of the urethra
What are the items to identify on the transitional epithelium slide?
Apical surface
Basement membrane
Nucleus
Dome-like rounded off surface cells.
