Biology

Question 1

Integumentary System

Answer 1

Protection, Covering, Metabolic Functions

Question 2

Body system that forms the body’s outer covering and primarily functions in protecting the body from the threats of outside environment.

Answer 2

Integumentary System

Question 3

What are the derivatives of the skin?

Answer 3

Hairs, Nails, Glands

Question 4

What are the various functions of the Integumentary System?

Answer 4

1. Sensation
2. Thermoreglation
3. Vitamin D synthesis
4. Excretion
5. Osmoregulation

Question 5

Thick Skin means?

Answer 5

Hairless

Question 6

Thin Skin means?

Answer 6

Hairy

Question 7

Largest external organ of the body.

Answer 7

Skin

Question 8

What are the functions of the skin?

Answer 8

Protection, Covering, Sensation, Thermoregulation, Vitamin D Sensation, Excretion, Osemoregualtion

Question 9

What are the three main layers of the skin?

Answer 9

1. Epidermis
2. Dermis
3. Hypodermis

Question 10

The outermost layer of the skin.

Answer 10

Epidermis

Question 11

What are the five main layers of the Epidermis?

Answer 11

1. Stratum Corneum
2. Stratum Licidum
3. Sayrtum Granulosum
4. Stratum Spinosum
5. Stratum Basale

Question 12

It is the uppermost multi-layer of dead keratinized,
corniced squamous cells.

Answer 12

Stratum Corneum

Question 13

Cells of this layers are dead because there is no blood vessels found here.

Answer 13

Stratum Corneum

Question 14

It is a protein that acts as a waterproofing substance.

Answer 14

Keratin

Question 15

Stratum Corneum is _________ or ___________

Answer 15

cornified or multi-layered

Question 16

This layer has keratin.

Answer 16

Stratum Corneum

Question 17

This layer is only found in the thick skin.

Answer 17

Stratum Lucidum

Question 18

Thick skin includes the skin found in the ______ and
_________ of the foot.

Answer 18

palm and sole

Question 19

Provides additional thickness to these areas which are prone to shock and pressure.

Answer 19

Stratum Lucidum

Question 20

Has active keratinocytes, which are cells producing
keratin.

Answer 20

Stratum Granulosim

Question 21

The lowermost layer made up of one layer of columnar cells.

Answer 21

Stratum Basale

Question 22

This layer is the mitosis layer.

Answer 22

Stratum Basale

Question 23

The cells are actively dividing giving rise to cells which will later compromise the upper layer.

Answer 23

Mitosis

Question 24

Tha stratum basale forms the _____ and _______.

Answer 24

nails and hair

Question 25

This layer contains melanocytes.

Answer 25

Stratum Basale

Question 26

This are cells that will produce melanin.

Answer 26

melanocytes

Question 27

It is a substance responsible for skin pigmentation.

Answer 27

Melanin

Question 28

High Melanin Production results to _______ skin color. Low Melanin Production results to_________ skin color.

Answer 28

Darker and Lighter

Question 29

Higher Melanin Production results to ______ skin color Lower Melanin Production results to ______ skin color.

Answer 29

Darker and Lighter

Question 30

It is a type of melanin which is more photoprotective than pheomelanin.

Answer 30

Eumelanin

Question 31

It is present in higher quantities in dark skin and dark eyes than in lighter skin and eyes.

Answer 31

Pheomelanin

Question 32

When the skin is exposed to UV rays from the sunlight, the epidermis synthesizes a form of Vitamin D called ______.

Answer 32

Cholecalciferol