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Flashcards in Histology of body tissues Deck (18)
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1
Q

____ is a branch of anatomy concerned with the study of the microscopic structure of tissues

A

histology

2
Q

___ are the smallest structural unit of living matter capable of functioning independently

A

cells

3
Q

what is a mesh-like material that surrounds the cells and holds cells and tissues together?

A

extra-cellular matrix

4
Q

___ is a gel-like material that fills the space between the cells

A

ground substance

5
Q

___ consists of collagen, elastin, and reticular fibers

A

fibers

6
Q

what separates the epithelial sheets and connective tissue?

A

basal lamina

7
Q

what makes up the outer surface of the body and lines the body cavities such as the mouth, stomach, and intestines

A

epithelial tissue

8
Q

______have no nuclei and form a resistant layer on the surface of the skin.

A

keratinized epithelium

9
Q

____ have nuclei and the cells are softer and more flexible. It is more susceptible to disease too.

A

nonkeratinized epithelium

10
Q

the epithleium does not contain blood vessels so it is nourished by what?

A

by the underlying connective tissue.

11
Q

4 layers of gingival epithelium

A
  1. stratum basal
  2. stratum spinosum
  3. stratum granulosum
  4. stratum corinum
12
Q

which gingival layer is the deepest and contains hemidesmesomes that provide adhesion between the connective tissue and epithelium

A

stratum basal

13
Q

which gingival layer is adjacent the basal cell layer, composed of polygonal shaped cells, and attached by desmesomes?

A

stratum spinosum

14
Q

which gingival layer is composed of flattened cells?

A

stratum granulosum

15
Q

which gingival layer contains cells that are flatter than those of granular layer and have no nuclei

A

stratum cornium

16
Q

which gingival layers are not found in sulcular or junctional epithelium because this is nonkeratinized

A

stratum granulosum and stratum cornium

17
Q

what two layers makes up the basal lamina

A
  1. lamina densa= closest to the connective tissue

2. lamina lucida=closest to the epithelium

18
Q

connective tissue contains what two layers?

A
  1. papillary layer=adjacent to to epithelium and contains collagen fibers that are thin and loosely arranged
  2. reticular layer=adjacent to bone or mucosa and contains collagen fibers that are arranged in thick dense bundles