Chapter 6- Integumentary System

Question 1

What is the skin’s major function?

Answer 1

To protect the internal body parts from mechanical injury, infection, excessive heat or cold and dehydration

Question 2

What are the types of invertebrate integument?

Answer 2

Protozoans, coelenterates, insects, arthropods

Question 3

What are the parts of the skin?

Answer 3

Epidermis (scarf), dermis (cutis vera or corium) and hypodermis

Question 4

It is thinnest on the eyelids and thickest on the palms and soles of the feet

Answer 4

Epidermis

Question 5

What are the layers of the epidermis?

Answer 5

Stratum Corneum, Stratum Lucidum, Stratum Granulosum, Stratum Spinosum and Stratum Germinativum

Question 6

What vitamins that will proceed to the fats if taken excessively?

Answer 6

Vitamins A, D, E and K

Question 7

Epidermis is avascular which means?

Answer 7

There is absence of blood vessels

Question 8

Dermis is vascular which means?

Answer 8

It is filled with blood vessels

Question 9

What color does a cyano, erythro and xantho have?

Answer 9

Cyano- Blue
Erythro- red
Xantho- yellow

Question 10

How many minutes does it take to be able to synthesize vitamins D from the sunlight?

Answer 10

10 minutes

Question 11

Melanocytes are pigments that have 3 types. What are these?

Answer 11

Melanin, Carotene and Albino

Question 12

Snake is to molting as human is to?

Answer 12

Desquamation

Question 13

What is the largest organ and what are its derivatives?

Answer 13

Skin and its derivatives are the hair and nails

Question 14

What do you call the bending of bones due to lack of exposure to sunlight?

Answer 14

Rickets or Genu Varus

Question 15

Two types of dermis and describe

Answer 15

Stratum Spongiosum- borders the epidermis. Loose

Stratum Compactum- More compact

Question 16

Where are tattoos and fingerprints found?

Answer 16

Dermis

Question 17

What is the most superficial layer?

Answer 17

Dermis

Question 18

Enumerate the different sensory nerve endings

Answer 18

Pacinian Corpuscles for pressure 
Krause's end bulb for Cold sensation 
Ruffini end bulbs for heat sensation 
Free nerve endings for pain 
Meissner's corpuscles for light touch

Question 19

It is adjacent to the dermis and contains epidermal cells that undergo cell division called mitosis. This deep layer also produce melanin

Answer 19

S. Germinativum

Question 20

How many weeks does it take to produce new skin?

Answer 20

2 weeks

Question 21

What are the parts of the hair?

Answer 21

Medulla (soft core or center)
Cortex (hard core, stiffness)
Cuticle (outermost)

Question 22

They produce an oily secretion which prevents hair from getting dry and brittle

Answer 22

Sebaceous or oil glands (sebum)

Question 23

What bacteria is naturally found in the face when dirt an oil is combined, this produces pimples

Answer 23

Staphylococcus aureus

Question 24

Acts as an emergency mechanism when it is necessary for the body to lose heat and this secretes sweat or perspiration

Answer 24

Sudoriferous or sweat glands

Question 25

This produces earwax or cerumen

Answer 25

Ceruminous glands

Question 26

Specialized glands for the production of milk for the nourishment of the young

Answer 26

Mammary glands or breasts