S1L2: Anatomy & Physiology

Question 1

Modified T/F:
A. The skin is a protective shield against heat, light, injury, and infection
B. It regulates our body temperature through sweat production ONLY

Answer 1

TF
- It regulates body temperature to the vasodilation & vasoconstriction of the blood vessels too

Question 2

Modified T/F:
A. The skin stores water, fat, and blood
B. Prevents entry of bacteria as it is a sealed area

Answer 2

TT

Question 3

Modified T/F:
A. The epidermis contains epidermal appendages
B. The dermis consists of 2 layers

Answer 3

FT

dermis contains epidermal appendages

Question 4

What are the 2 layers of Dermis?

Answer 4

Papillary and Reticular Layer

Question 5

Modified T/F:
A. Epidermis is the outer layer. It serves as a barrier between our body & the environment
B. It functions as both an insulator since it contains body fat & helps conserve the body’s heat

Answer 5

TF
- Subcutis Functions as both an insulator since it contains body fat & helps conserve the body’s heat

Question 6

Innermost layer of the skin, & consists of a network of fat and collagen cells

Answer 6

Subcutis (Subcutaneous Tissue)

Question 7

T/F: The thickness of the subcutis layer varies throughout the body & from person to person (depends on the build of the person)

Answer 7

True

Question 8

T/F: Subcutis is a shock-absorber, protecting the outer organs

Answer 8

False, it protects inner organs

Question 9

T/F: The hypodermis stores fat as an energy reserve for the body. However, blood vessels, nerves, lymph vessels, & hair follicles does not cross through this layer

Answer 9

False. The blood vessels, nerves, lymph vessels, & hair follicles also cross through this layer

Question 10

Subcutis is also known as

Answer 10

Hypodermis or Subcutaneous layer

Question 11

Free Nerve endings
Location:

Answer 11

Epidermis & Dermis

Question 12

Free Nerve endings
Function:

Answer 12

Pain, itch

Question 13

Merkel’s Disks
Location:

Answer 13

Epidermis (Stratum Spinosum)

Question 14

Merkel’s Disks
Function:

Answer 14

Touch

Question 15

Meissner’s Corpuscles
Location:

Answer 15

Papillary Dermis

Question 16

Meissner’s Corpuscles
Function:

Answer 16

Touch

Question 17

What is the similarity & differences between ruffini’s endings & krause end bulb?

Answer 17

Similar location: Papillary dermis
Different function: Warm receptor (ruffini’s)
Cold receptor (Krause End Bulb)

Question 18

Pacinian Corpuscles
Location:

Answer 18

Reticular dermis (deepest layer)

Question 19

Pacinian Corpuscles
Function:

Answer 19

Pressure & Vibration Receptor

Question 20

T/F: Superficial burns are less painful than deeper burns because sensory receptors for touch & pain are located in the deeper structures

Answer 20

False. Superficial burns = more painful; Deeper burns = less painful it is because sensory
receptors for touch & pain have been removed

Question 21

● It consists of loose connective tissue & elastin
● Fat serves as padding & insulation for the body

Answer 21

Hypodermis / Subdermis (Subcutaneous Tissue)

Question 22

Modified T/F:
A. Epidermis comprised mainly of interwoven collagen & elastin fibers
B. It is 20-30 times thicker than dermis

Answer 22

FF. Both refer to Dermis

Question 23

T/F: Both Lucidum & Spinosum have keratinocytes, squamous layers and these cells are almost towards the surface of the skin. These are extra protection under the stratum corneum

Answer 23

False. Both Lucidum & Granulosum

Question 24

LAYERS OF EPIDERMIS

Outermost layer made up of dead keratinocytes
Hardened layer

Answer 24

STRATUM CORNEUM

Question 25

LAYERS OF EPIDERMIS

Found on palms of hands & soles of feet

Answer 25

STRATUM LUCIDUM

Question 26

Have lamellar granules
For water retention

Answer 26

STRATUM GRANULOSUM

Question 27

Stratum spinosum is made up of [] & [] cell

Answer 27

keratinocytes & langerhans

Question 28

STRATUM BASALE is also known as

Answer 28

Stratum Germinativum

Question 29

Where cell division happens
Helps with production of cells for the other layers of the epidermis

Answer 29

STRATUM BASALE

Question 30

Modified T/F:

A. Reticular layer refers to thin arrangement of collagen fibers
B. Papillary Layer is thicker & made up of thick collagen fibers that are arranged in parallel to the surface of the skin

Answer 30

FF. A - Papillary, B - Reticular

Question 31

Layers of Dermis

Denser; strengthens the skin, providing structure & elasticity

Answer 31

Reticular Layer

Question 32

Modified T/F:
A. Reticular layer supports other components of the skin, such as hair follicles, sweat glands, and sebaceous glands.
B. Reticular layer supplies nutrients on select layers of epidermis & regulates temperature as blood vessels are found in this area.

Answer 32

TF. B - Papillary layer

Question 33

Papillary layer of dermis supplies nutrients on select layers of epidermis & regulates temperature as blood vessels are found in this area. Both of this function are accomplished with [] [] [] system that uprights similarly to other vascular systems in the body

Answer 33

thin extensive vascular system

Question 34

In Papillary layer, controlled amount of blood that goes in the skin & dictates whether body heat is either dispelled or skin is hot & conserve when its cold thru what proccesses?

Answer 34

Constriction & Expansion