CAC Skin & Facial Anatomy — Questions and Answers
Question 1: Which layer of the skin contains collagen and elastin fibers responsible for skin elasticity?
- Epidermis
- Dermis (Correct answer)
- Hypodermis
- Stratum corneum
Correct answer: Dermis
The dermis contains collagen and elastin fibers that provide structure and elasticity to the skin.
Question 2: What is the primary function of the epidermis?
- To store fat
- To protect against environmental damage (Correct answer)
- To regulate body temperature
- To produce collagen
Correct answer: To protect against environmental damage
The epidermis acts as a protective barrier against environmental damage, pathogens, and water loss.
Question 3: Which muscle is primarily responsible for facial expressions?
- Masseter
- Orbicularis oris (Correct answer)
- Temporalis
- Sternocleidomastoid
Correct answer: Orbicularis oris
The orbicularis oculi and orbicularis oris, along with other facial muscles, control facial expressions.
Question 4: What is the role of sebaceous glands in the skin?
- Produce sweat
- Produce sebum to moisturize and protect the skin (Correct answer)
- Generate new skin cells
- Regulate body temperature
Correct answer: Produce sebum to moisturize and protect the skin
Sebaceous glands produce sebum, an oily substance that helps keep the skin moisturized and protected.
Question 5: Which facial bone forms the prominence of the cheek?
- Mandible
- Zygomatic bone (Correct answer)
- Frontal bone
- Maxilla
Correct answer: Zygomatic bone
The zygomatic bone, also known as the cheekbone, gives structure and prominence to the cheeks.
Question 6: What is the function of melanin in the skin?
- To provide elasticity
- To protect against UV radiation (Correct answer)
- To regulate temperature
- To increase collagen production
Correct answer: To protect against UV radiation
Melanin is responsible for skin pigmentation and protects against harmful ultraviolet (UV) radiation.
CAC Skin & Facial Anatomy
Which layer of the skin contains collagen and elastin fibers responsible for skin elasticity?