BIO 201 RIO SALADO EXAM 1 EXAM PREP
QUESTIONS AND ANSWERS 2026 PRACTICE
SOLUTION VERIFIED RESULTS
◉ Where are sebaceous glands found in the body.
Answer: They are found all over the body and help to lubricate and
waterproof hair and skin.
◉ Hair Follicle (hair).
Answer: Primary made of dead keratinized cells, originate in the
epidermal penetration of the dermis
◉ What is the function of the arrector pili muscle.
Answer: Contracts in response to nerve signals from the sympathetic
nervous system to make the external hair shaft 'stand up'
◉ What type of muscle is the arrector pili muscle?.
Answer: Smooth muscle
◉ What is the function of nails?.
Answer: Protects the tips of fingers and toes
,◉ Why are nails important for the body?.
Answer: They are the farthest extremities and experience maximum
mechanical stress
◉ Analyze how the skin accomplishes at least five different
functions..
Answer: Protection
Sensory Function
Thermoregulation
Vitamin D Synthesis
Preventing Dehydration
◉ Protection function of skin.
Answer: First line of defense against abrasive activity due to contact
with grit, microbes, or harmful chemicals
◉ What are the three layers of the skin involved in sensory
function?.
Answer: Epidermis, dermis, hypodermis
, ◉ Which specialized sensory nerve structures in the skin detect
touch, surface temperature, and pain?.
Answer: Receptors like Meissner corpuscle and Pacinian corpuscle
◉ How does the skin help regulate body temperature?.
Answer: Through its tight association with the sympathetic nervous
system, sweat glands in the skin help regulate body temperature.
◉ What is the role of sweat glands in thermoregulation?.
Answer: Sweat glands in the skin help regulate body temperature
through their association with the sympathetic nervous system.
◉ What form of vitamin D is synthesized in the skin from cholesterol
in sunlight?.
Answer: Vitamin D3 (cholecalciferol)
◉ Where is cholecalciferol converted to calcidiol?.
Answer: In the liver
◉ Where is calcidiol converted to calcitriol?.
Answer: In the kidneys
QUESTIONS AND ANSWERS 2026 PRACTICE
SOLUTION VERIFIED RESULTS
◉ Where are sebaceous glands found in the body.
Answer: They are found all over the body and help to lubricate and
waterproof hair and skin.
◉ Hair Follicle (hair).
Answer: Primary made of dead keratinized cells, originate in the
epidermal penetration of the dermis
◉ What is the function of the arrector pili muscle.
Answer: Contracts in response to nerve signals from the sympathetic
nervous system to make the external hair shaft 'stand up'
◉ What type of muscle is the arrector pili muscle?.
Answer: Smooth muscle
◉ What is the function of nails?.
Answer: Protects the tips of fingers and toes
,◉ Why are nails important for the body?.
Answer: They are the farthest extremities and experience maximum
mechanical stress
◉ Analyze how the skin accomplishes at least five different
functions..
Answer: Protection
Sensory Function
Thermoregulation
Vitamin D Synthesis
Preventing Dehydration
◉ Protection function of skin.
Answer: First line of defense against abrasive activity due to contact
with grit, microbes, or harmful chemicals
◉ What are the three layers of the skin involved in sensory
function?.
Answer: Epidermis, dermis, hypodermis
, ◉ Which specialized sensory nerve structures in the skin detect
touch, surface temperature, and pain?.
Answer: Receptors like Meissner corpuscle and Pacinian corpuscle
◉ How does the skin help regulate body temperature?.
Answer: Through its tight association with the sympathetic nervous
system, sweat glands in the skin help regulate body temperature.
◉ What is the role of sweat glands in thermoregulation?.
Answer: Sweat glands in the skin help regulate body temperature
through their association with the sympathetic nervous system.
◉ What form of vitamin D is synthesized in the skin from cholesterol
in sunlight?.
Answer: Vitamin D3 (cholecalciferol)
◉ Where is cholecalciferol converted to calcidiol?.
Answer: In the liver
◉ Where is calcidiol converted to calcitriol?.
Answer: In the kidneys
