Question: Accessory structures of the skin include all of the following, except for
Answer Choices: sebaceous glands epidermis sweat glands nails hair follicles
Answer: epidermis
Question: The protein that permits stretching and recoiling of the skin is
Answer Choices: collagen carotene elastin melanin keratin
Answer: elastin
Question: Characteristics of the epidermis include:
Answer Choices: serves as UV radiation protection flexible multilayered contains desmosomes All of the answers are correct
Answer: All of the answers are correct
Question: The primary pigments contained in the epidermis are
Answer Choices: xanthophyll and melanin melanin and chlorophyll melanin and chromatin carotene and melanin carotene and xanthophyll
Answer: carotene and melanin
Question: The two components of the integumentary system are the
Answer Choices: integument and hypodermis cutaneous membrane and hypodermis cutaneous membrane and accessory structures epidermis and dermis epidermis and superficial fascia
Answer: cutaneous membrane and accessory structures
Question: If osteoclasts are more active than osteoblasts, bones will become
Answer Choices: calcified stronger thicker osteopenic denser
Answer: osteopenic
Question: When the arrector pili muscles contract,
Answer Choices: sweat is released from sweat glands hairs are shed shivering occurs the skin changes color “goose bumps” are formed
Answer: “goose bumps” are formed
Question: Which of the following bones is not part of the appendicular skeleton?
Answer Choices: tibia metacarpals coxal bones scapula sacrum
Answer: sacrum
Question: An important vitamin that is formed in the skin when it is exposed to sunlight is
Answer Choices: vitamin D vitamin A vitamin B vitamin C vitamin E
Answer: vitamin D
Question: Each of the following is a function of the integumentary system, except for
Answer Choices: provision of sensation protection of underlying tissue maintenance of body temperature excretion of salts and wastes synthesis of vitamin C
Answer: synthesis of vitamin C
Question: The type of cells that form the strata in the epidermis are
Answer Choices: adipocytes melanocytes fibroblasts dendritic cells keratinocytes
Answer: keratinocytes
Question: The effects of aging on the skin include
Answer Choices: increased production of vitamin D an increased number of sweat glands a decline in the activity of sebaceous glands an increased blood supply to the dermis
Answer: a decline in the activity of sebaceous glands
Question: The following are major steps in the process of intramembranous ossification. Clusters of osteoblasts form osteoid that becomes mineralized Osteoblasts differentiate within mesenchymal connective tissue Spicules of bone radiate out from the ossification centers Mesenchymal cells aggregate The correct order for these events is
Answer Choices: 2, 1, 3, 4 4, 2, 1, 3 4, 1, 2, 3 2, 3, 1, 4
Answer: 4, 2, 1, 3
Question: The two major types of cell layering in epithelia are
Answer Choices: simple and stratified squamous and simple stratified and pseudostratified cuboidal and columnar simple and proper
Answer: simple and stratified
Question: The shaft of a long bone is called the
Answer Choices: metaphysis lamella epiphyseal plate epiphysis diaphysis
Answer: diaphysis
Question: All of the following are true of the subcutaneous layer, except for
Answer Choices: contains many blood vessels is attached to the dermis by a basement membrane permits independent movement of deeper structures contains large amounts of adipose tissue is well supplied with nerves that pass into the skin
Answer: is attached to the dermis by a basement membrane
Question: If the papilla of a hair follicle is destroyed,
Answer Choices: hair production will not be affected the hair matrix will lose its blood supply the hair produced by the follicle will change from terminal to vellus the texture of the hair will become coarser the color of the hair will become lighter
Answer: the hair matrix will lose its blood supply
Question: The carpal bones are examples of ______ bones.
Answer Choices: flat long short irregular sesamoid
Answer: short
Question: The trabeculae of spongy bone
Answer Choices: are concentrated in the cortex of the diaphysis are organized parallel to the long axis of the bone are composed mostly of cartilage will collapse under stress are organized along stress lines
Answer: are organized along stress lines
Question: The layer of the skin that contains bundles of collagen and elastic fibers responsible for the strength of the skin is the ______ layer.
Answer Choices: reticular epidermal subcutaneous papillary hypodermal
Answer: reticular
Question: The layer of the skin that contains the blood vessels and nerves that are closest to the surface of the skin is the ______ layer.
Answer Choices: papillary hypodermal subcutaneous epidermal reticular
Answer: papillary