Integumentary system Flashcards
Which of the following is NOT a function of the integumentary system?
Regulation of blood pressure
Functions of the integumentary system include protection, vitamin D synthesis, and sensation.
What is the outermost layer of the skin called?
Epidermis
The epidermis is the visible outer layer of skin.
Which type of cell is primarily responsible for producing melanin?
Melanocytes
Melanocytes are specialized cells that create the pigment melanin, which gives skin its color.
The protein that provides skin with its waterproofing ability is called:
Keratin
Keratin is a fibrous protein that helps in forming a protective barrier.
What is the primary function of sweat glands?
Cool the body
Sweat glands help regulate body temperature through the process of perspiration.
What is the primary function of sweat glands?
B. Cool the body
The thickest layer of the epidermis, responsible for producing keratin, is the:
B. Stratum spinosum
Which of the following structures is located in the dermis?
B. Hair follicles
The hypodermis primarily consists of:
A. Adipose tissue
Which of the following is a skin appendage?
B. Sebaceous gland
What type of burn damages the epidermis and part of the dermis, causing blisters?
B. Second-degree burn
The pigment responsible for giving skin its yellowish hue is:
C. Carotene
The part of the hair that is visible above the skin is called the:
C. Shaft
Which layer of the skin contains blood vessels?
B. Dermis
Sebum is produced by which type of gland?
C. Sebaceous gland
Which type of sweat gland is most numerous and helps regulate body temperature?
B. Eccrine gland
The layer of the epidermis where mitosis occurs is the:
B. Stratum basale
What type of tissue makes up the dermis?
B. Dense irregular connective tissue
Which of the following skin conditions is caused by clogged sebaceous glands?
C. Acne
The primary function of melanocytes is to:
C. Protect against UV radiation
What is the term for the crescent-shaped area at the base of a nail?
B. Lunula
The protein elastin gives skin its:
B. Elasticity
Which type of UV radiation is most harmful to the skin?
B. UVB
The arrector pili muscle is responsible for:
B. Causing goosebumps
Which of the following conditions is characterized by an autoimmune attack on melanocytes?
A. Vitiligo
The layer of the epidermis found only in thick skin is the:
B. Stratum lucidum
Which vitamin is synthesized in the skin when exposed to sunlight?
D. Vitamin D
What type of gland produces earwax?
C. Ceruminous gland
Which of the following contributes to skin color?
how much melanin is produced by melanocytes
The skin helps regulate body temperature by:
C. Dilating or constricting blood vessels
The immune cells found in the epidermis are called:
C. Langerhans cells
What is the primary role of Merkel cells?
A. Sensory perception
Which layer of skin is responsible for fingerprints?
C. Papillary layer of the dermis
Albinism is caused by a defect in the production of:
D. Melanin
Which type of burn extends through all layers of the skin?
C. Third-degree burn
What part of the hair contains actively dividing cells?
C. Bulb
Which structure in the skin detects deep pressure?
Pacinian corpuscles
The stratum corneum consists of
Dead, flattened keratinized cells
Excessive collagen production during healing can lead to
keloid scar
Which of the following glands is associated with body odor?
apocrine
The dermis is divided into which two layers?
papillary
reticular
Which cells in the skin play a role in immunity?
Langerhans
The tough outermost layer of the epidermis is composed of:
keratinized dead cells
Apoptosis of cells occurs within the…
stratum granulosum
Dense irregular connective tissue will be found in the
dermis
This type of exocrine gland undergoes a higher rate of mitosis due to its holocrine secretion
sebacous gland
Which condition results from androgens inhibiting hair growth in genetically predisposed adults
male pattern baldness
You stepped on a nail. List the sequential strata of the epidermis that the nail penetrated through to reach the dermis
corneum, luciderm, granulosum, spinosum, basale
Goose bumps are caused by
contraction of arrector pili mm’s
When you are hot, blood vessels in the dermis _____ to maintain homeostasis
dilate
When you are cold, blood vessels in the dermis _____ to maintain homeostasis
constrict
Heat loss from the body will _____ when blood vessels in the dermis dilate
increase
Heat loss from the body will _____when blood vessels in the dermis constrict
decrease
