#1
Which of the following is not a function of the integumentary system?
Production of insulin
ExplanationThe integumentary system does not produce insulin; its functions include protection, temperature regulation, and sensation.
#2
What is the outermost layer of the skin called?
Epidermis
ExplanationThe epidermis is the outermost layer of the skin, providing a protective barrier against the external environment.
#3
Which gland in the integumentary system produces sweat?
Eccrine gland
ExplanationEccrine glands are responsible for producing sweat, aiding in thermoregulation and excretion of waste.
#4
What pigment is responsible for the color of the skin?
Melanin
ExplanationMelanin, produced by melanocytes, determines skin color and provides protection against UV radiation.
#5
What is the medical term for the outermost layer of the epidermis?
Stratum corneum
ExplanationThe stratum corneum is the medical term for the outermost layer of the epidermis, composed of dead skin cells.
#6
Which vitamin is synthesized by the skin upon exposure to sunlight?
Vitamin D
ExplanationThe skin synthesizes Vitamin D when exposed to sunlight, crucial for bone health and overall well-being.
#7
What type of tissue makes up the majority of the dermis?
Fibrous connective tissue
ExplanationThe dermis is primarily composed of fibrous connective tissue, providing strength and elasticity to the skin.
#8
Which layer of the skin contains blood vessels, nerve endings, and hair follicles?
Dermis
ExplanationThe dermis contains blood vessels, nerve endings, and hair follicles, playing a vital role in skin function and sensation.
#9
Which of the following is a function of sebaceous glands?
Production of sebum
ExplanationSebaceous glands produce sebum, an oily substance that moisturizes and protects the skin and hair.
#10
Which of the following is a function of hair follicles?
Sensory perception
ExplanationHair follicles contribute to sensory perception, detecting touch, temperature, and movement.
#11
What is the medical term for the condition commonly known as 'goosebumps'?
Piloerection
ExplanationPiloerection, or 'goosebumps,' is the medical term for the involuntary raising of hair, often in response to cold or emotional stimuli.
#12
What is the primary function of the arrector pili muscles?
Cause goosebumps
ExplanationArrector pili muscles contract to cause 'goosebumps,' a response to cold or emotional stimuli.
#13
What is the primary function of the subcutaneous layer of the skin?
Insulation and energy storage
ExplanationThe subcutaneous layer provides insulation, stores energy, and cushions organs.
#14
Which layer of the skin is primarily composed of adipose tissue?
Hypodermis
ExplanationThe hypodermis, or subcutaneous tissue, is primarily composed of adipose tissue, providing insulation and energy storage.