Wiley Chapter 5 Assignment Questions
Stratum Granulosum
Which layer of the epidermis contains layers of flattened keratinocytes that are going through apoptosis?
Stratum Basale
Which layer of the epidermis is composed of a single row of cuboidal or columnar keratinocytes?
Epidermis
Which layer of the skin is composed of a keratinized stratified squamous epithelium?
E
Which letter is pointing to the subcutaneous layer of the skin in the figure?
G
Which structure is an eccrine sweat gland?
I
Which structures are dermal papillae?
A
Which structures in the figure are sensitive to warmth, coolness and itching?
corneum, lucidum, granulosum, spinosum, basale
You stepped on a nail. List the sequential layers (or strata) of the epidermis that the nail penetrated through to finally reach the dermis.
Keloid Scar
In which type of scar does the scar tissue extend beyond the boundary of the injury into normal tissue?
is a protein
Keratin
action of arrector pili muscles.
"Goose bumps" are caused by
Melanin
Albinism is the inherited inability to produce
Hypodermis
Another name for the subcutaneous layer is
Found in the palms, soles of the feet and fingertips. Does not contain hair follicles. Contains more sweat glands than thin skin. Contain epidermal ridges.
Characteristics of thick skin include:
Stratum Corneum
Constant exposure of skin to friction stimulates the formation of a callus, which is the thickening of the _____ of the epidermis.
B
In the diagram of a hair root shown, where is the cortex?
C
In the diagram of a hair root shown, where is the cuticle of the hair?
F
In the diagram of skin shown below, where is the apocrine sweat gland?
D
In the diagram of skin shown below, where is the arrector pili muscle?
H
In the diagram of skin shown below, where is the reticular region of the dermis?
C
In the diagram of skin shown below, where is the sebaceous gland?
A
In the diagram of skin shown below, which labeled structure generates fingerprints?
F
In the diagram, which is a melanocyte?
G
In the diagram, which is the hair matrix?
E
In the diagram, which is the papilla of the hair?
I
In the diagram, which layer is the stratum corneum?
G
In the diagram, which layer is the stratum granulosum?
E
In the figure of a sagittal section of a fingernail shown below, where is the nail matrix?
A
In the figure of a sagittal section of a fingernail shown below, where is the nail root?
B
In the figure of a sagittal section of a fingernail shown, where is the eponychium (cuticle)?
G
In the figure of a sagittal section of a fingernail shown, where is the hyponychium (nail bed)?
C
In the figure of a sagittal section of a fingernail shown, where is the lunula?
D
The corpuscle of touch (Meissner corpuscle) would be found in which region of the skin shown in the figure?
cells accumulating a tough fibrous protein that helps protect the skin.
The process of keratinization involves
is present only in thick skin
The stratum lucidum
Lanugo
This is fine non-pigmented hair that covers the body of the fetus.
Jaundice
Which condition is due to a buildup of bilirubin pigment in the skin?
Male-Pattern Baldness
Which condition results from androgens inhibiting hair growth in genetically predisposed adults?
Intraepidermal macrophages (Langerhans cells)
Which epidermal cell has a role in immunity and disease resistance?
Oil Glands
Which of the following structures found in the skin help prevent water loss and inhibit bacterial growth on the surface of the skin?
Sweat Glands
Which of the following structures found in the skin plays an important role in thermoregulation?
Melanin
Which pigment secreted by specialized cells in the skin is capable of absorbing ultraviolet light?
C
Which structure in the figure detects touch sensations?
F
Which structure in the figure is a receptor sensitive to pressure?
D
Which structure in the figure produces a pigment that contributes to skin color and absorbs UV radiation?
A
Which structure in the figure produces a protein that helps protect the skin and underlying tissues from heat, microbes and chemicals?