Integument

    Integument
    The skin begins the production of vitamin D in which of the following situations? When
    Choice D happens in the liver and in the kidney. PTH signals the kidney to act on the modified precursor, whereupon a hydroxyl group is added.
    Integument
    What is another name for sweat glands?
    Choice D does list a sweat gland, but not all of them.
    Integument
    Which stratum of the epidermis protects the body against water loss and abrasion?
    The stratum corneum is the outermost layer of the epidermis and is composed of dead cells filled with keratin. This layer is harmlessly rubbed off (abrades) as the body comes into contact with objects outside the body.
    Integument
    When a medicine is delivered via a patch attached to the skin, it is said to be delivered:
    Some medicines can be absorbed through the skin to enter the bloodstream. Choice C applies to ointments that act on the skin they are applied to. Choices B and D are delivered by a penetrating injection to locations deep to the skin.
    Integument
    People with full-thickness burns to more than 20% of their body are in a life- threatening situation. This is due to which of the following?
    Without a waterproof outer layer, the body would lose water faster than it could be replaced.