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BIO101 HUMAN A&P

BIO101 CH 06 chatgpt generated study guide

QuestionAnswer
BIO101 CH 6 PRACTICE QUIZ CHATGPT
Which of the following is a primary function of the skin? A. Hormone production B. Protection against infection C. Blood cell formation D. Digestion B – Skin protects against trauma and infection
The skin helps prevent excessive water loss primarily through: A. Blood vessels B. Keratinized cells C. Nerve endings D. Sweat glands B – Keratin prevents water loss
Which vitamin begins synthesis in the skin? A. Vitamin A B. Vitamin B12 C. Vitamin C D. Vitamin D D – Vitamin D synthesis begins in skin
The integumentary system includes all EXCEPT: A. Hair B. Nails C. Skin D. Muscles D – Muscles are not part of integumentary system
The epidermis is composed of which tissue type? A. Connective tissue B. Nervous tissue C. Muscle tissue D. Epithelial tissue D – Epidermis is epithelial tissue
The dermis is primarily made of: A. Epithelial tissue B. Connective tissue C. Nervous tissue D. Muscle tissue B – Dermis is connective tissue
The hypodermis is best described as: A. The outer skin layer B. A layer of epidermis C. Not part of the skin D. A glandular structure C – Hypodermis is not part of skin
Which protein gives skin its strength and toughness? A. Collagen B. Keratin C. Elastin D. Melanin B – Keratin provides toughness
Which cells produce melanin? A. Keratinocytes B. Tactile cells C. Melanocytes D. Dendritic cells C – Melanocytes produce melanin
Melanin primarily protects against: A. Heat damage B. UV radiation C. Bacterial infection D. Dehydration B – Melanin protects from UV rays
Tactile (Merkel) cells are responsible for: A. Producing pigment B. Detecting touch C. Secreting oils D. Fighting infection B – Tactile cells detect touch
Dendritic cells in the epidermis function to: A. Produce keratin B. Detect UV light C. Initiate immune responses D. Store fat C – Dendritic cells function in immunity
The deepest layer of the epidermis is the: A. Stratum corneum B. Stratum lucidum C. Stratum granulosum D. Stratum basale D – Stratum basale is deepest
Which layer contains actively dividing cells? A. Stratum corneum B. Stratum basale C. Stratum lucidum D. Stratum granulosum B – Cell division occurs in basale
As keratinocytes move upward, they: A. Become more active B. Begin dividing faster C. Flatten and accumulate keratin D. Develop blood vessels C – Cells flatten and fill with keratin
The stratum corneum consists mainly of: A. Living cells B. Blood vessels C. Dead keratinized cells D. Nerve endings C – Dead keratinized cells
Which epidermal layer is only found in thick skin? A. Stratum basale B. Stratum spinosum C. Stratum lucidum D. Stratum granulosum C – Lucidum only in thick skin
The dermis contains all EXCEPT: A. Blood vessels B. Nerve endings C. Sweat glands D. Keratinocytes D – Keratinocytes are in epidermis
Dermal papillae function to: A. Produce sweat B. Increase surface area between layers C. Store fat D. Secrete sebum B – Dermal papillae increase contact
Hair follicles originate from: A. Muscle tissue B. Bone tissue C. Epidermal cells D. Blood vessels C – Hair develops from epidermis
The hair shaft is composed of: A. Living cells B. Dead keratinized cells C. Blood vessels D. Nerve tissue B – Hair shaft = dead cells
The arrector pili muscle causes: A. Sweating B. Hair growth C. Goosebumps D. Oil production C – Causes goosebumps
Sebaceous glands produce: A. Sweat B. Sebum C. Melanin D. Keratin B – Sebaceous glands produce sebum
Sebum functions to: A. Cool the body B. Protect from UV C. Lubricate and waterproof skin D. Detect pressure C – Sebum waterproofs skin
Eccrine sweat glands are primarily involved in: A. Emotional responses B. Temperature regulation C. Oil production D. Hair growth B – Eccrine = temperature control
Apocrine glands are mainly activated by: A. Temperature B. Hormones and emotions C. Digestion D. Blood flow B – Apocrine = emotional response
Nails are primarily composed of: A. Bone B. Collagen C. Keratin D. Fat C – Nails are keratin
The nail matrix is responsible for: A. Nail color B. Nail growth C. Nail strength D. Nail attachment B – Matrix = growth region
The lunula is: A. The tip of the nail B. The visible growth region C. A pale half-moon area D. The nail root C – Lunula = pale half-moon
Which structure nourishes the hair? A. Hair shaft B. Hair papilla C. Sebaceous gland D. Arrector pili B – Papilla supplies nutrients
The skin is the body’s largest organ. T/F True – Largest organ
The epidermis contains blood vessels. T/F False – Epidermis is avascular
The dermis provides nutrients to the epidermis. T/F True – Dermis supplies nutrients
Keratinocytes produce melanin. T/F False – Melanocytes produce melanin
The hypodermis is part of the skin. T/F False – Hypodermis not skin
Sweat glands help regulate body temperature. T/F True – Sweat regulates temp
Hair follicles extend into the dermis. T/F True – Follicles extend into dermis
Sebaceous glands are absent on palms and soles. T/F True – No sebaceous glands there
The stratum corneum contains living cells. T/F False – Corneum = dead cells
Apocrine glands open directly onto the skin surface. T/F False – Apocrine open into hair follicles
Created by: C to the C
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