BHSC 1200 4 STUDY GUIDE
Tissue - Answers :group of cells similar in structure and function
Histology - Answers :study of tissues
Pathology - Answers :study of disease
What tissue type would you expect to find on a surface of the body that is subjected to
friction? (MC) - Answers :a. Epithelial Tissue
b. Connective Tissue
c. Muscle Tissue
D. Nervous Tissue
Answer: A. Epithelial Tissue
Four basic tissue types - Answers :epithelial (Covers), connective (Supports), muscle
(Moves),
nervous (Controls)
Two Major Categories of the epithelium tissue - Answers :1. Covering and lining
epithelium
2. Glandular epithelium
functions of epithelial tissue - Answers :1. protection- of exposed and internal surfaces
from dehydration, abrasion and destructions
2. absorption and filtration- Let some substances in and keep others out
3. secretion- of sweat, scents and hormones
4. sensation- of the environment
5 charateristics of epithelial tissue - Answers :1. Polarity
2. Specialized contacts
3. Supported by connective tissues
4. Avascular, but innervated
5. Regeneration
polarity of epithelial tissue - Answers :has an apical surface and a basal surface.
Apical Surface - Answers :Exposed to the surface or cavity; Borders open space
Basal Surface - Answers :Attached to underlying connective tissue;
Adjacent epithelial cells are connected by: - Answers :Tight Junctions (impermeable to
substance) and Desmosomes (Anchoring Structure)
, The basement membrane - Answers :The boundary between the two tissue types.
Consist of two layers: Basal Lamina and reticular Lamina
Avasular - Answers :no blood supply
innervated - Answers :supplied by nerve fibers
How do epithelial cells get nutrients? - Answers :by diffusion or absorption across either
the exposed or attached epithelial surface
Gap Junctions-Channels and receptors.
rapid cell division - Answers :Replace damage cells ex. Skin
Classifications of epithelium - Answers :number of cell layers and cell shape
epithelium layers - Answers :simple, stratified, pseudostratified
pseudo - Answers :false, deceptive
simple epithelium - Answers :single layer of cells
stratified epithelium - Answers :more than one layer of cells
Pseudostratidied epithelium - Answers :one layer of cells but rest on the basement
membrane, but appears to have several layers
Cell nuclei are at different levels
When would a simple epithelium be useful - Answers :absorption, filtration, secretions
When would a stratified epithelium be useful - Answers :Protections and high abrasion
sites.
epithelium cell shapes - Answers :squamous, cuboidal, columnar
Cells shape in stratified layers - Answers :The shape of the cells in the apical layer
transitional epithelium - Answers :A special type of stratified epithelialtissue
characterized by the ability ofcells to change shape when stretched
• also called urothelium
• cuboidal when relaxed, squamouswhen stretched
EX. Bladder
Goblet Cells - Answers :produce mucus
Cilia - Answers :Move materials across the cell surface
Tissue - Answers :group of cells similar in structure and function
Histology - Answers :study of tissues
Pathology - Answers :study of disease
What tissue type would you expect to find on a surface of the body that is subjected to
friction? (MC) - Answers :a. Epithelial Tissue
b. Connective Tissue
c. Muscle Tissue
D. Nervous Tissue
Answer: A. Epithelial Tissue
Four basic tissue types - Answers :epithelial (Covers), connective (Supports), muscle
(Moves),
nervous (Controls)
Two Major Categories of the epithelium tissue - Answers :1. Covering and lining
epithelium
2. Glandular epithelium
functions of epithelial tissue - Answers :1. protection- of exposed and internal surfaces
from dehydration, abrasion and destructions
2. absorption and filtration- Let some substances in and keep others out
3. secretion- of sweat, scents and hormones
4. sensation- of the environment
5 charateristics of epithelial tissue - Answers :1. Polarity
2. Specialized contacts
3. Supported by connective tissues
4. Avascular, but innervated
5. Regeneration
polarity of epithelial tissue - Answers :has an apical surface and a basal surface.
Apical Surface - Answers :Exposed to the surface or cavity; Borders open space
Basal Surface - Answers :Attached to underlying connective tissue;
Adjacent epithelial cells are connected by: - Answers :Tight Junctions (impermeable to
substance) and Desmosomes (Anchoring Structure)
, The basement membrane - Answers :The boundary between the two tissue types.
Consist of two layers: Basal Lamina and reticular Lamina
Avasular - Answers :no blood supply
innervated - Answers :supplied by nerve fibers
How do epithelial cells get nutrients? - Answers :by diffusion or absorption across either
the exposed or attached epithelial surface
Gap Junctions-Channels and receptors.
rapid cell division - Answers :Replace damage cells ex. Skin
Classifications of epithelium - Answers :number of cell layers and cell shape
epithelium layers - Answers :simple, stratified, pseudostratified
pseudo - Answers :false, deceptive
simple epithelium - Answers :single layer of cells
stratified epithelium - Answers :more than one layer of cells
Pseudostratidied epithelium - Answers :one layer of cells but rest on the basement
membrane, but appears to have several layers
Cell nuclei are at different levels
When would a simple epithelium be useful - Answers :absorption, filtration, secretions
When would a stratified epithelium be useful - Answers :Protections and high abrasion
sites.
epithelium cell shapes - Answers :squamous, cuboidal, columnar
Cells shape in stratified layers - Answers :The shape of the cells in the apical layer
transitional epithelium - Answers :A special type of stratified epithelialtissue
characterized by the ability ofcells to change shape when stretched
• also called urothelium
• cuboidal when relaxed, squamouswhen stretched
EX. Bladder
Goblet Cells - Answers :produce mucus
Cilia - Answers :Move materials across the cell surface
