Lecture 7a

Question 1

Groups of cells similar in structure and function

Answer 1

Tissue

Question 2

Four types or tissues:

Answer 2

Epithelial
Connective
Muscle
Nerve

Question 3

Covers the external body, lines cavities and tubules, and generally marks off our insides from our outsides

Answer 3

Epithelium

Question 4

Epi

Answer 4

On

Around

Question 5

Thele

Answer 5

Nipple

Question 6

Upon the nipple

Answer 6

Epithelia

Question 7

Within the nipple

Answer 7

Endothelia

Question 8

Epithelia derived from splanchnic and somatic mesoderm lining body cavity and covering organs

Answer 8

Mesothelia

Question 9

Two types of epithelial tissues

Answer 9

Epithelia

Glands

Question 10

Layers of the cells covering internal or external surfaces

Answer 10

Epithelia

Question 11

Structures that produce secretions

Answer 11

Glands

Question 12

Functions of the epithelial tissue

Answer 12

Provide protection
Control permeability
Move fluids over the surface
Produce sensation
Produce specialized secretions

Question 13

Characteristics of epithelia:

Answer 13

Cellularity
Polarity
Attachment
Avascularity
Regeneration

Question 14

Physical integrity of epithelia is maintained by:

Answer 14

Intercellular connections
Attachment to basal lamina
Maintenance and repair

Question 15

Epithelia are replaced by

Answer 15

Division of germinative cells (stem cells)

Question 16

Where repairing and replacing of epithelia occur

Answer 16

Near basal lamina

Question 17

Suface specializations:

Answer 17

Cilia and flagella
Microvilli
Stereocilia

Question 18

Classification of epithelia (cell shape)

Answer 18

Squamous - flat
Cuboidal - cube
Columnar - tall

Question 19

Classification of epithelia (layers of cells)

Answer 19

Simple - 1 layer

Stratifies - many layers

Question 20

Other types of epithelium

Answer 20

Pseudostratified

Transitional

Question 21

One or more cells that makes and secretes an aqueous fluid

Answer 21

Gland

Question 22

Glands are classified by:

Answer 22

Site of product release

Number of cell forming the gland

Question 23

Site of product release:

Answer 23

Endocrine

Exocrine

Question 24

Relative number of cells forming the gland

Answer 24

Unicellular

Multicellular

Question 25

Generally formed by down growth of surface epithelium into underlying connective tissue

Answer 25

Gland

Question 26

Ductless glands that produce hormones

Answer 26

Endocrine

Question 27

Endocrine secretions include:

Answer 27

Amino acids
Proteins
Glycoproteins
Steroids

Question 28

More numerous than endocrine glands

Secrete onto body surfaces

Answer 28

Exocrine

Question 29

Examples or exocrine secretions:

Answer 29

Mucous
Sweat
Oil
Digestive
Salivary

Question 30

Only important unicellular gland

Answer 30

Goblet Cell

Question 31

Single cell glands

Answer 31

Goblet cells

Question 32

Multicellular glands

Answer 32

Serous
Mucous
Seromucous

Question 33

PAS positive
Secrete mucous
Scattered among cells of simple epithelium
Mucigen granules
Form viscud mucous

Answer 33

Goblet cells

Question 34

Secretion watery and rich in protein

Answer 34

Serous glands

Question 35

Secretion mucus

Poor in protein

Answer 35

Mucous protein

Question 36

Intermediate

Answer 36

Seromucous gland

Question 37

Glands are classified based on mode of secretion

Answer 37

Merocrine
Apocrine
Hopocrine

Question 38

Most common exocrine secretion

Enclosed in vesicles that move to the apical surface of the cell where the contents are released by exocytosis

Answer 38

Merocrine secretions

Question 39

Accumulates near the apical portion of the cell

Answer 39

Apocrine secretion

Question 40

Involves the rupture and destruction of the entire gland cell

Answer 40

Holocrine secretion