Histology of body tissues

Question 1

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

Answer 1

histology

Question 2

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

Answer 2

cells

Question 3

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

Answer 3

extra-cellular matrix

Question 4

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

Answer 4

ground substance

Question 5

___ consists of collagen, elastin, and reticular fibers

Answer 5

fibers

Question 6

what separates the epithelial sheets and connective tissue?

Answer 6

basal lamina

Question 7

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

Answer 7

epithelial tissue

Question 8

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

Answer 8

keratinized epithelium

Question 9

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

Answer 9

nonkeratinized epithelium

Question 10

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

Answer 10

by the underlying connective tissue.

Question 11

4 layers of gingival epithelium

Answer 11

1. stratum basal
2. stratum spinosum
3. stratum granulosum
4. stratum corinum

Question 12

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

Answer 12

stratum basal

Question 13

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

Answer 13

stratum spinosum

Question 14

which gingival layer is composed of flattened cells?

Answer 14

stratum granulosum

Question 15

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

Answer 15

stratum cornium

Question 16

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

Answer 16

stratum granulosum and stratum cornium

Question 17

what two layers makes up the basal lamina

Answer 17

1. lamina densa= closest to the connective tissue

2. lamina lucida=closest to the epithelium

Question 18

connective tissue contains what two layers?

Answer 18

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