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Test 2-Tissue and Integumentary System
All of the materials needed for test 2
20
Anatomy
11th Grade
09/28/2009

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Cards

Term
Histology
Definition
Study of biology of tissues; tissues are cells organized for a specific function
Term
Primary Germ layers
Definition

Gastrulation: the process of forming 3 germ layers.

Histogenesis: the process of the germ layers differentiating into tissues.

  1. Endoderm-innermost layer. ex) Lining of the digestive and respitory organs, thyroid
  2. Mesoderm-middle layer. ex) muscle
  3. Ectoderm-Outermost layer. ex) skin, nervous, epidermis tissue
Term
Types of epithelial tissue
Definition
  1. Membranous epithelium-lining/covering
  2. Glandular epithelium-secreting
Term
Functions of epithelial tissue
Definition
  1. Protection-ex) skin
  2. Sensory-ex) skin, nose, eye ear
  3. Secretion-ex) hormones, digestive juices
  4. Absorbtion-ex) small intestine, lungs
  5. Excretion-ex) urine, sweat
Term
Characteristics of epithilial tissue
Definition
  1. Limited extracellular space or matrix; cells appear tightly packed
  2. Apical surface-free suface exposed to the body exterior or the cavity of an internal organ
  3. Basement surface-membrane-bottom surface (always close to a free edge)
  4. Avasascular-no blood vessels; use diffusion
  5. Innervated-contains nerve fivers (Nerves in it)
  6. Original in ectodermal, mesodermal, and endodermal
  7. High regeneration capacity
Term
Squamous cells
Definition
flat, round
Term
Cuboidal cells
Definition
cube
Term

Columnar cells

 

Definition
narrow cylinder
Term
Psuedostratified
Definition
one layer of odd shaped columnar cells; appears to be more than one layer
Term
Layers of cells
Definition
  1. simple-single layer
  2. stratified-more than one layer
Term
Simple squamous
Definition
Alveoli in lungs
Term
Simple cuboidal
Definition
glands; kidney
Term
Simple columnar
Definition
goblet cells; cilia; microvilli
Term
Pseudostratified columnar
Definition
goblet cells; respiratory
Term
Stratified squamous (keratonized)
Definition
"waterproofed" ex) skin
Term
Stratified squamous (nonkeratinized)
Definition
vagina, mouth, and esophagus lining
Term
Stratified cuboidal
Definition
sweat gland ducts
Term
Stratified columnar
Definition
male urethra; anus mucus layer
Term
Transitional
Definition

combination of cells such as squamous and cuboidal; irregular mixture

ex) bladder wall-stretchable

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