15 Question Quiz

Question 1

Tissue

Answer 1

Group of similar cells with a common function

Question 2

Histology

Answer 2

Study of tissues

Question 3

What are the 4 major types of tissues

Answer 3

• Epithelial tissue (glandular tissue)
• connective tissue
• muscle tissue
• nervous tissue

Question 4

What does intercellular junction mean?

Answer 4

Space between cells

Question 5

Tight junction

Answer 5

Membranes merge and fuse
Create sheet like layers
Ex) blood brain barrier

Question 6

What are some characteristics about desosomes?

Answer 6

Form “spot welds” structural reinforcement

Question 7

Gap junctions

Answer 7

Tubular channels between cells

Molecules can move between cells

Question 8

Epithelial tissue

Answer 8

Covers organs
Lines cavities
Frees surface on outside, basement membrane on inside
Usually lack blood vessels
Cells readily divide
classified according to the cell shape and number of cell layers

Question 9

How are cells identified?

Answer 9

1) layers:simple(one layer),stratified(2 or more layers),pseudo stratified (appears layered)
2) shapes:squamous(flat),cuboidal(cube),columnar(tall)

Question 10

Simple squamous

Answer 10

1 layer of flat shaped cells
Diffusion and filtration
Alveoli and capillaries
Found in blood vessels

Question 11

Simple cuboidal

Answer 11

Single layer of cube shaped cells
Secretion and absorption 
Kidney tubules
Covers ovaries
Lines ducts of some glands

Question 12

Simple columnar

Answer 12

Single layer of elongated cells
Nuclei usually at same level
Have cilia and goblet cells (secrete mucus)
Lines uterus, stomach, intestines
Secretion and absorption

Question 13

Pseudostratified columnar

Answer 13

Single layer but appears to be layered
Often has cilia
Protection from infection
Lines respiratory passageways

Question 14

Stratified squamous

Answer 14

Many cell layers
Protective layer
Lines oral cavity, vagina, anal cavity

Question 15

Stratified cuboidal

Answer 15

2-3 layers of cube shaped cells
More protection
Ducts of mammary, sweat and salivary glands

Question 16

Stratified columnar

Answer 16

+1 layer of column shaped cells

Male urethra, ducts of exocrine glands

Question 17

Transitional

Answer 17

Many cell layers
Cube shaped as elongated cells
Changes shape with increased tension
urinary bladder, ureters,urethra

Question 18

Connective tissue is…

Answer 18

Most abundant,cells are farther apart, contain matrix(space between cells)

Question 19

What is the function of the connective tissue?

Answer 19

Bind structures
Provide support and protection ex) bone
Stores fat
Produces blood cells
Protects against infections 
Have good blood supply

Question 20

Fibroblast

Answer 20

Secrete fibers into extracellular matrix

Question 21

Macrophages

Answer 21

Conduct phagocytosis “cell eating”

Defend against infections

Question 22

Mast cell

Answer 22

Heparin>prevents blood clotting

Histamine>causes from inflammatory response

Question 23

Fibroblasts produce three types of fibers

Answer 23

Collagen
Elastic(yellow)
Reticular

Question 24

Collagen fibers

Answer 24

Thick threads
Tensile strength
Flexible

Question 25

Elastic (yellow) fibers

Answer 25

Made of elastin protein Can stretch and return to original shape Found in vocal cords,respiratory air passages

Question 26

Reticular fibers

Answer 26

Thin branching fibers Supporting networks Spleen,liver

Question 27

What percentage does collagen make up in the bone?

Answer 27

60%

Question 28

Chondrodysplagia

Answer 28

Collagen chains are a symmetric, causing stunted growth and deformed joints

Question 29

Marian syndrome

Answer 29

Deficiency of the protein fibrils in long limbs, spindly fingers,sunken chest,weak aorta