Epithelium/ First unit

Question 1

Parenchyma

Answer 1

epithelial cells which form the functional units of an organ

Question 2

Stroma

Answer 2

the connective tissue framework associated with the parenchyma

Question 3

Serosa

Answer 3

thin layer of (usually simple squamous) cells and underlying connective tissue that form sheets which line the outer surfaces of organs when they are located in the body cavity they secrete a water lubricating fluid

Question 4

Mucosa

Answer 4

specialized epithelia and its associated connective tissue which line the luminal surfaces of body tubes, cavities, and canals with external connection; they tend to secrete a fluid with a mucus component, making their secretions more viscous than a serosa

Question 5

Lumen

Answer 5

space contained within a tube, cylinders or sphere

Question 6

Polarity

Answer 6

specially different segments/ regions of the cell’s boarders

Question 7

Polarity- apex, apical

Answer 7

the luminal boarder or surface

Question 8

Polarity- base, basal

Answer 8

adjacent to the basement membrane and underlying connective tissue matrix

Question 9

Polarity- lateral

Answer 9

lateral side of the cell, attachment to adjacent cells

Question 10

Classification- simple

Answer 10

one cell layer

Question 11

Classification- stratified and how named

Answer 11

multiple layers- usually named by shape of surface cells

Question 12

Cell shape squamous

Answer 12

fried egg, flat and thin

Question 13

Cell shape cuboidal

Answer 13

cube; same height and width

Question 14

Cell shape columnar

Answer 14

column like- taller than wide

Question 15

Epithelium

Answer 15

line all external body surfaces, internal tubes, form glands, and entire glandular organs
external coverings derived from ectoderm and internal derived from endoderm, sometimes mesoderm

Question 16

Connective tissue

Answer 16

connect and bind other structures, large amount of extracellular material, derived from mesoderm

Question 17

muscle

Answer 17

Uniquely designed for contractility, derived form mesoderm

Question 18

Nervous Tissue

Answer 18

system adapted to conduct, receive, transmit, integrate, and transduce information from external and internal environments. Derived form ectoderm

Question 19

What is the basement membrane/ basal lamina

Answer 19

it is a connective tissue attachment and it separates epithelia from their surrounding making an effective barrier

Question 20

Endothelium

Answer 20

lines inner surface of heart, blood and lymphatic vessels

Question 21

Mesothelium

Answer 21

Lines the inner body cavity and outside of internal organs

Question 22

Euchromatic cells

Answer 22

cells that are actively transcribing a d translating the DNA to make proteins

Question 23

Pseudostratified epithelium

Answer 23

all cells still contact basement membrane but all of them may not reach luminal surface

Question 24

Transitional epithelium

Answer 24

simple in classification and pseudostratified but can accommodate stretching and found in urothelium