Anatomy and Physiology Exam 2; chapters 4, 5, 6 QUESTIONS
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tissue
a group of similar cells "knit" together as a
unit/team
histology
the microscopic study of tissues
pathology
the microscopic diagnosis of disease
primary tissue types are derived from what 3 embryonic germ layers?
endoderm, mesoderm, and ectoderm
what primary tissue types are derived from the endoderm
lining of the digestive tract and its derivatives; lung tissue and other internal organs
,that primary tissues are derived from the mesoderm
muscle, bone, and blood vessels; forms heart
what primary tissues are derived from the ectoderm
outermost layer of the skin (integumentary system) and the nervous system
epithelial tissue features
-covers surfaces
-has little extracellular material
-usually has a basement membrane
-no blood vessels
epithelial cell features
- Have a free, or apical, surface (not attached to other cells)
- A lateral surface (attached to
other cells)
- A basal surface (attached to the basement membrane)
epithelial tissue functions
protective barrier, permitting the passage of substances, secreting substances, absorbing
substances
,classification of epithelial tissue
determined by the shape of the cell and how many layers
simple squamous epithelium
1 layer of squashed cells; thin for diffusion, secretion, absorption
- found in lining of lungs/ alveoli, lining of blood vessels, portions of kidney tubules, lining of
serous membranes
stratified squamous epithelium, keratinized
many layers squashed together; waterproof; protects against abrasion, infection, and reduction
of water loss in the body
- in the epidermis
stratified squamous epithelium, non-keratinized
many layers squashed together;
- found in the mouth, nose, esophagus, anus, vagina, inferiors urethra, cornea
cuboidal epithelium
"squirt guns"; cube-shaped; secrete hormones from by the Golgi Apparatus
- found in glands
, columnar epithelium
column-shaped; has cilia to sweep bad stuff out; have goblet cells and mucous is brushed up to
the throat
- in trachea, bronchioles, stomach, intestines
cystic fibrosis
problem with columnar epithelium; mucous is too thick
goblet cells
secrete mucous
pseudostratified ciliated columnar epithelium
transitional epithelium
what are the 3 free cell surfaces
smooth, microvilli, cilia
fxn. of smooth free cell surfaces
prevent/ reduce friction
AND VERIFIED ANSWERS RECENT AND COMPREHENSIVE
VERSION GUARANTEED PASS WITH INSTANT PDF
DOWNLOAD.
tissue
a group of similar cells "knit" together as a
unit/team
histology
the microscopic study of tissues
pathology
the microscopic diagnosis of disease
primary tissue types are derived from what 3 embryonic germ layers?
endoderm, mesoderm, and ectoderm
what primary tissue types are derived from the endoderm
lining of the digestive tract and its derivatives; lung tissue and other internal organs
,that primary tissues are derived from the mesoderm
muscle, bone, and blood vessels; forms heart
what primary tissues are derived from the ectoderm
outermost layer of the skin (integumentary system) and the nervous system
epithelial tissue features
-covers surfaces
-has little extracellular material
-usually has a basement membrane
-no blood vessels
epithelial cell features
- Have a free, or apical, surface (not attached to other cells)
- A lateral surface (attached to
other cells)
- A basal surface (attached to the basement membrane)
epithelial tissue functions
protective barrier, permitting the passage of substances, secreting substances, absorbing
substances
,classification of epithelial tissue
determined by the shape of the cell and how many layers
simple squamous epithelium
1 layer of squashed cells; thin for diffusion, secretion, absorption
- found in lining of lungs/ alveoli, lining of blood vessels, portions of kidney tubules, lining of
serous membranes
stratified squamous epithelium, keratinized
many layers squashed together; waterproof; protects against abrasion, infection, and reduction
of water loss in the body
- in the epidermis
stratified squamous epithelium, non-keratinized
many layers squashed together;
- found in the mouth, nose, esophagus, anus, vagina, inferiors urethra, cornea
cuboidal epithelium
"squirt guns"; cube-shaped; secrete hormones from by the Golgi Apparatus
- found in glands
, columnar epithelium
column-shaped; has cilia to sweep bad stuff out; have goblet cells and mucous is brushed up to
the throat
- in trachea, bronchioles, stomach, intestines
cystic fibrosis
problem with columnar epithelium; mucous is too thick
goblet cells
secrete mucous
pseudostratified ciliated columnar epithelium
transitional epithelium
what are the 3 free cell surfaces
smooth, microvilli, cilia
fxn. of smooth free cell surfaces
prevent/ reduce friction
