Chapter 3 Tissues PP bolded words Flashcards Preview

Anatomy > Chapter 3 Tissues PP bolded words > Flashcards

Flashcards in Chapter 3 Tissues PP bolded words Deck (81)
Loading flashcards...
1

What is a tissue?

many cells that act and/or look similar that do the same thing

2

several different tissues working together make up an...?

an organ

3

what is the study of tissues?

Histology

4

what are the four primary tissue types?

1.) Epithelial
2.) Connective
3.) Muscle
4.) Neural

5

What are the 6 characteristics of epithelial tissue?

1.) Cellularity
2.) Polarity
3.) Attachment
4.) Avascularity
5.) Regeneration
6.) Covers all body surfaces (Arranged into sheets or layers)

6

What are the 4 functions of epithelial tissue?

1.) Provides protection
2.) Control permeability
3.) Provide sensation
4.) Produce specialized secretions

7

What does cellularity mean in relation to epithelial tissue?

-There is little or no intercellular space between the cells in epithelial tissues
-no matrix between cells
-connected by junctions
-may contain fluids (even be water tight)

8

What does avascularity mean in relation to epithelial tissue?

-There are no blood vessels found in epithelial tissue
-nutrients are supplied through blood in the underlying tissue (diffusion across the apical or basal surfaces)

9

What are the three different classifications of epithelia?

Simple
Stratified
Pseudostratified

10

What are the four different epithelial cell shapes?

Squamous
Cuboidal
Columnar
Transitional

11

What is the structure, function, and location of simple squamous cells?

Structure: One layer of thin, flat, irregular cells
Function: Diffusion, secretion to reduce friction
Location: serous membranes, blood vessels, lungs, kidney tubules

12

What is the structure, function, and location of simple cuboidal cells?

Structure: one layer, hexagonal box-shaped cells
Function: absorption, secretion, limited protection
Location: Glands, ducts, kidney tubules

13

What is the structure, function, and location of simple columnar cells?

Structure: one layer, hexagonal column-shaped cells
Function: protection, absorption, secretion
Location: stomach, intestine, gallbladder, uterine tubes

14

What is the structure, function, and location of pseudostratified columnar cells?

Structure: one layer, multishaped cells, nuclei at varied heights
Function: protection, secretion
Location: respiratory tract, male reproductive tract

15

What is the structure, function, and location of stratified squamous cells?

Structure: thin, flat, irregular cells
Function: protection against frequent abrasion
Location: skin, mouth, throat, esophagus, rectum, anus, vagina

16

What is the structure, function, and location of stratified cuboidal cells?

Structure: multiple layers, hexagonal shaped boxes
Function: secretion
Location: Rare; sweat gland ducts

17

What is the structure, function, and location of stratified columnar cells?

Structure: multiple layers, hexagonal column-shaped cells
Function: protection, secretion
Location: Rare; pharynx, epiglottis, anus, glands

18

What is the structure, function, and location of transitional cells?

Structure: multiple layers, can change shape
Function: expansion and recoil without tearing
Location: urinary bladder, renal pelvis

19

what is a gland?

epithelial cells that are aggregated together to produce a specific product

20

where do exocrine glands secrete?

into ducts that open on a surface

21

where do endocrine glands secrete?

into tissue fluid or blood

22

what is the name for the cell that creates a unicellular exocrine gland?

goblet cell

23

describe secretory sheets

multicellular gland
one large sheer covering a surface
rarely have ducts or pockets

24

describe multicellular simple glands

have one distinct duct with outpocketing
defined by the number and shape of these pockets:
1.) tubular: elongate
2.) coiled: winds
3.) alveolar: lobed
(look at slide for pictures)

25

describe multicellular compound glands

have many distinct ducts with outpocketing
defined by the number and shape of these pockets:
1.) tubular: elongate
2.) coiled: winds
3.) alveolar: lobed

26

Merocrine glands secrete product via__________

exocytosis (vesicles within cytoplasm bring product to the surface)

27

what is an example of a merocrine gland?

salivary glands

28

describe apocrine glands and give an example

pinching off if a cell portion where the product is within this portion
an example is mammary glands

29

describe holocrine glands and give an example

product accumulates in cytosol; cell ruptures and becomes the product

30

Name 6 general traits of connective tissue

1.) most abundant
2.) multiple functions
3.) spread apart
4.) able to reproduce
5.) well nourished; good blood supply
6.) vary in structure