Integument

    Integument
    One of the following is NOT part of the integumentary system. Which one?
    The hypodermis is the superficial fascia, also known as the subcutaneous fat layer.
    Author: rikazzz Comment
    Integument
    What distinguishes the stratum corneum of the epidermis from the other layers?
    The cells of the stratum corneum are dead, having lost all of their organelles and being filled with keratin.
    Author: rikazzz Comment
    Integument
    A drug that is administered “transdermally” is one that:
    Transdermal administration is applied to those drugs that can be absorbed from an adhesive “patch” (say), through the skin and enter the bloodstream.
    Author: rikazzz Comment
    Integument
    To what in the skin does the term “nociceptors” refer?
    The prefix “noci” is derived from the Latin for hurt.
    Author: rikazzz Comment
    Integument
    What is the fibrous protein in our skin that protects it from abrasion?
    The outermost layer of the epidermis (stratum corneum) 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.
    Author: rikazzz Comment
    Integument
    Another name for oil glands in the skin is:
    The other three choices are all sweat glands.
    Author: rikazzz Comment
    Integument
    Which layer of the integument contains rapidly dividing keratinocytes?
    Stratum germinativum (= stratum basale) implies that germination is happening. In fact new cells are formed here by mitosis to replace those lost from the stratum corneum.
    Author: rikazzz Comment
    Integument
    Which layer of the integument is the most superficial layer?
    Stratum corneum is the outermost dead layer of the epidermis.
    Author: rikazzz Comment
    Integument
    Which is a notable feature of the stratum corneum layer of the integument? It:
    This property makes the skin a barrier between the internal body and the environment.
    Author: rikazzz Comment
    Integument
    Which statement about vitamin D is INCORRECT?
    As our body can make “vitamin D”, it is not an essential part of our diet. As it circulates in the bloodstream, it is regarded as a type of steroid hormone.
    Author: rikazzz Comment