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Integumentary System
Master Integumentary System concepts with free TEAS practice questions and detailed rationales. These questions will help you reinforce your understanding and improve your score on the TEAS exam.
Free Practice Questions (2)
Practice Question
Which layer of the skin contains blood vessels and nerves?● A. Epidermis● B. Dermis ● C. Hypodermis● D. Stratum basaleCorrect Answer: B. Dermis✅ Rationale:The dermis is the middle layer of the skin and serves as a supporting structure beneath the epidermis. It contains:- Blood vessels that provide oxygen and nutrients to the skin.- Nerves responsible for sensation (pain, temperature, and touch).- Connective tissue, including collagen and elastin, which maintain skin strength and flexibility.Because the epidermis lacks blood vessels, the dermis plays a crucial role in supplying nutrients and removing waste from skin cells.❌ Why the Other Choices Are Incorrect:A. Epidermis ❌- The epidermis is avascular, meaning it does not contain blood vessels or nerves.C. Hypodermis ❌- The hypodermis contains fat and connective tissue but has fewer blood vessels and nerves compared to the dermis.D. Stratum basale ❌- The stratum basale is the deepest layer of the epidermis, responsible for cell regeneration, but it does not contain blood vessels or nerves.Final Answer: ✅ B. Dermis
Practice Question
What is the primary function of sebaceous glands?● A. To produce sweat● B. To produce oil ● C. To produce melanin● D. To produce keratinCorrect Answer: B. To produce oil✅Rationale:Sebaceous glands secrete sebum, an oily substance that:- Lubricates the skin to prevent dryness and cracking.- Protects hair from becoming brittle.- Provides antimicrobial properties, helping to prevent infections.Sebum is released through hair follicles, contributing to skin hydration. Overproduction of sebum can lead to acne, while underproduction may cause dry skin.❌ Why the Other Choices Are Incorrect:A. To produce sweat ❌- Sweat glands (sudoriferous glands) produce sweat to regulate body temperature, not oil.C. To produce melanin ❌- Melanin is produced by melanocytes in the epidermis, not sebaceous glands.D. To produce keratin ❌- Keratin is synthesized by keratinocytes in the epidermis, not sebaceous glands.Final Answer: ✅ B. To produce oil