Integumentary System Review (A & P)

Which dermal layer contains fingerprints and most sensory receptors?

Papillary Layer

Vasodilation of skin blood vessels helps the body

release heat

Which layer is constantly dividing and producing new skin cells?

statum basale

Which epidermal cell type functions in immune defense?

Langerhans Cell

Which layer of the skin is avascular (has no blood supply)?

Epidermis

Which receptor detects LIGHT touch?

Meissner's Corpuscle

Which type of skin cancer arises from keratinocytes and can metastasize?

Squamous cell carcinoma

Which sweat glands become active at puberty in the axillary and genital areas?

Aprocrine

Which layer of the skin contains blood vessels, nerves, and glands?

Dermis

Which is NOT a function of the integumentary system?

Digestion

Which condition is caused by dangerously low body temperature?

Hypothermia

Which cell in the epidermis produces melanin

melanocyte

Which skin disease is caused by viral infection?

Herpes

Which protein fibers give the dermis strength and elasticity?

collagen and elastin

Which condition results from dehydration and over-sweating?

Heat exhaustion

Which burn extends into muscle and bone?

Fourth Degree

The process of keratinization begins in which layer?

stratum granulosum

Which sweat glands function in thermoregulation and are found all over the body?

Eccrine

Acne is caused by overproduction of:

sebum

The crescent-shaped white area at the base of the nail is called the:

lunula

Which life-threatening condition occurs when thermoregulation fails and core temp ~106°F?

heat stroke

Vasoconstriction of skin blood vessels helps the body:

prevent heat loss

Which receptor detects DEEP pressure?

Pacinian Corpuscle

Which smooth muscle causes goosebumps when it contracts?

Arrector Pili

The stratum lucidum is found only in

Thick Skin (Palms, Soles)

Which burn damages the epidermis and dermis, causing blisters?

Second degree

Which receptor detects cold sensations?

Krause’s end bulb

The ABCD rule is used to help detect:

Skin cancer (melanoma)

Which burn only affects the epidermis?

first degree

Which part of the nail is responsible for nail growth?

nail bed (matrix)

Which burn destroys the full thickness of skin and nerve endings?

third degree

Which glands secrete sebum (oil)?

sebaceous glands

Hair color depends on the amount and type of:

melanin

Which type of skin cancer is most dangerous and highly metastatic?

Melanoma

Which acronym lists the epidermal layers superficial to deep?

Coffee lovers grow strong biceps

Which type of skin cancer is most common but least malignant?

basal cell carcinoma

What gives skin its pinkish hue, especially in fair-skinned individuals?

Hemoglobin

1. The integumentary system consists of all the following EXCEPT:

Blood Vessels

What is the largest organ of the human body?

skin

Which receptor detects heat and stretch?

Ruffini corpuscle

Acne is caused by overproduction of:

sebum