A&p 1 Chapter 5

Front 1

The organs of what system include the skin and its accessory structures including hair, nails, and glands, as well as blood vessels, muscles and nerves?

Back 1

integumentary

Front 2

The Integument is an ____ ____comprised of many organs such as hair and multiple types of glands.

Back 2

organ system

Front 3

Besides protection, the skin contributes to?

Back 3

Regulation of body temperature
Sensory perceptions
Synthesis of vitamin D
Emotional expression and It also serves as an important reservoir of blood

Front 4

What is the outer layer of skin?

Back 4

The epidermis

Front 5

The epidermis contains 5 layers. From bottom to top the layers are named:

Back 5

stratum basale
stratum spinosum
stratum granulosum
stratum licidum
stratum corneum

Front 6

What is always the bottom (deepest) layer of skin. Continuous cell division occurs here and produces all the other layers.

Back 6

stratum basale

Front 7

What skin layer is a layer of 8–10 keratinocytes, in which organelles are beginning to degererate?

Back 7

stratum spinosum

Front 8

The non-dividing cells of the 3rd layer of skin are filled with granules of keratin. This layer is called?

Back 8

stratum granulosum

Front 9

The ____ ____ is the 4th layer of skin, but is only present in thick skin (the skin of the fingertips, palms, and soles).

Back 9

stratum lucidum

Front 10

The ____ ___ is always outermost layer of skin, composed of approximately 20 layers of flat cell-remnants that are like “bags of turtle wax” (dead keratinocytes with no cellular organelles filled with only keratin protein.)

Back 10

stratum corneum

Front 11

What is the process of replacing viable cells in the stratum basale with more and more of the waxy keratin protein as cells move from the deepest layer to the surface layer.

Back 11

Keratinization

Front 12

The skin has 3 major layers they are called?

Back 12

epidermis, dermis, and subcutaneous

Front 13

What is composed of connective tissue containing collagen and elastic fibers.

Back 13

The dermis

Front 14

The Dermis contains two regions, they are?

Back 14

papillary region, and The reticular region

Front 15

What region of the Dermis consists of dense irregular connective tissue containing collagen and elastic fibers, adipose cells, hair follicles, nerves, sebaceous (oil) glands, and sudoriferous (sweat) glands?

Back 15

The reticular region

Front 16

What region of the Dermis lies just below the epidermis and consists of areolar connective tissue containing thin collagen and elastic fibers, dermal papillae (including capillary loops), corpuscles of touch and free nerve endings?

Back 16

The papillary region

Front 17

What 3 pigments are primarily responsible for skin color?

Back 17

Carotene, melanin and hemoglobin

Front 18

What type of har is a fine, nonpigmented, downy hairs that cover the body of the fetus?

Back 18

Lanugo

Front 19

What type of hairs are a short, fine, pale hairs barely visible to the naked eye?

Back 19

Vellus hairs

Front 20

What type of hair is long, coarse, heavily pigmented hair?

Back 20

Terminal hairs

Front 21

Hair color is determined by the amount and type of?

Back 21

melanin.

Front 22

What are connected to hair follicles. They secrete an oily substance called sebum which does 2 important things:
Prevents dehydration of hair
and skin Inhibits growth of certain bacteria.

Back 22

Sebaceous (oil) glands

Front 23

In addition to oil glands, there are 2 types of skin sweat glands, also called ____ ____. Both are simple, coiled tubular glands.

Back 23

sudoriferous glands

Front 24

What sudoriferous glands are the most numerous? They secrete a watery solution (600 ml per day) that helps to cool the body and eliminates small amounts of waste.

Back 24

Eccrine sweat glands

Front 25

What sudoriferous glands are located mainly in the skin of the axilla, groin, areolae, and bearded facial regions of adult males. They secrete a slightly viscous sweat.

Back 25

Apocrine sweat glands

Front 26

What releases sweat in response to an emotional stress such as fear or embarrassment. This type of sweating is referred to as emotional sweating or a “cold sweat”.

Back 26

Eccrine sweat glands

Front 27

The secretory portion of ____ ____ glands is located mostly in the subcutaneous layer, and the excretory duct opens into hair follicles, with sweat secreted during emotional stress and sexual excitement.

Back 27

apocrine sweat

Front 28

Much of body odor is due to?

Back 28

apocrine sweat.

Front 29

Nails are composed of hard, keratinized epidermal cells located over the dorsal surfaces of the ends of fingers and toes. Nail structures include?

Back 29

Free edge,
Transparent nail body (plate)
with a whitish lunula at its base, and Nail root embedded in a fold of skin

Front 30

The six functions of the skin are?

Back 30

Thermoregulation, Blood Reservoir, Protection, Cutaneous Sensations, Excretion and Absorption, and Synthesis of Vitamin D.

Front 31

Cutaneous sensations are sensations that arise in the skin, including tactile sensations of?

Back 31

Touch, Pressure, Vibration, and Tickling.

Front 32

Thermal sensations in the skin include?

Back 32

warmth cooling and pain.