REVISION - Integumentary System

What is one of the primary functions of the skin?

• Protection against harmful substances

• Production of hormones

• Digestion of food

• Absorption of nutrients

How is Vitamin D produced in the skin?

• Through exposure to ultraviolet (UV) light

• By consuming dairy products

• Through physical exercise

• By drinking water

Which of the following is a response to increased body temperature?

• Vasodilation of blood vessels

• Vasoconstriction of blood vessels

• Shivering of skeletal muscles

• Contraction of arrector pili muscles

What happens to the blood vessels when the body temperature decreases?

• They constrict

• They dilate

• They burst

• They disappear

Which layer of the skin is the outermost?

• Epidermis

• Dermis

• Subcutaneous layer

• Hypodermis

Which layer of the epidermis is the outermost and fully keratinized?

• Stratum Basal

• Stratum Lucidum

• Stratum Corneum

• Stratum Spinosum

What is the primary function of keratin in the epidermis?

• To provide color to the skin

• To protect the body from water

• To aid in cell division

• To produce melanin

Which layer of the epidermis is responsible for producing melanin?

• Stratum Granulosum

• Stratum Lucidum

• Stratum Basal

• Stratum Corneum

In which layer of the epidermis do keratinocytes produce keratin?

• Stratum Spinosum

• Stratum Lucidum

• Stratum Corneum

• Stratum Basal

What is the correct order of the epidermis layers from the deepest to the most superficial?

• Corneum, Lucidum, Granulosum, Spinosum, Basal

• Basal, Spinosum, Granulosum, Lucidum, Corneum

• Lucidum, Corneum, Basal, Spinosum, Granulosum

• Granulosum, Basal, Spinosum, Lucidum, Corneum