Integumentary System Lecture Quiz (BIOL 260)

What is the top layer of the skin called?

• Dermis
• Hypodermis
• Epidermis
• Subcutaneous

Skin color is primarily due to a pigment called

• Keratin
• Melanin
• Chromatin
• Epithelium

The layer of the epidermis that is capable of dividing is

• Stratum basale
• Stratum corneum
• Stratum lucidum
• Stratum spinosum

The sweat gland that produces "stinky" sweat is the 

• Apocrine gland
• Eccrine gland
• Sudoriferous gland
• Sebaceous gland

The protein that makes us "waterproof" is called

• keratin
• melanin
• carotene
• mucus

The epidermis is composed of _____.

• Nonkeratinized stratified squamous epithelium

• simple columnar epithelium
• adipose tissue
• Keratinized stratified squamous epithelium

The clear layer only present in thick skin on the body is called:

• Stratum granulosum
• Stratum spinosum
• Stratum corneum
• Stratum lucidum

The function of sebum is:

• Keeps skin soft and moist
• Help to regulate body temperature
• Produce vitamin D
• Protect skin from mechanical damage

What types of cells found in the epidermis contain nerve endings that are touch receptors?

• Keratinocytes

• Langerhans cells

• Melanocytes

• Merkel cells

Both hair and nails are made up of the same type of protein

• True
• False