Exam 2 Practice Questions Flashcards
Which of the following contain collagen fibers?
all of the above(dense regular, fibrocartilage, hyaline)
Which of the following require a nerve impulse for activation?
skeletal muscle
Which of the following is most likely to have active mitosis occurring within the tissue:
stomach epithelial tissue
The principal role of melanin
is to __________.
shield nucleus from damage by ultraviolet radiation
The touch sensors of the epidermis
are the _________.
tactile cells
A patient taking a drug that inhibits cell division (such as certain chemotherapy drugs) would expect which layer of the epidermis to be affected first?
stratum basale
Which of the following types of skin cancer is most dangerous?
melanoma
What is the immediate threat from severe burns?
loss of water and electrolytes
Unipotent stem cells are those which, like other stem cells, undergo perpetual self-renewal while remaining in their undifferentiated state, and can differentiate to produce only one specialized cell type. An example of unipotent stem cells includes:
mesodermal cells
What is the structural unit of compact bone?
the osteon
For a bone to grow in width, _____ add bone matrix to the ________.
osteoblasts; periosteum
Which of the following will result in increased blood calcium levels?
increased PTH and increased osteoclast activity
Osteocytes are found in:
lacunae
Vitamin D deficiency can cause rickets, a symptom of which is the bowing of the femurs outward such that the femurs become curved. X-rays of such femurs reveal less bone opacity than those of normal, non-deficient femurs. Which of the following is the most reasonable conclusion from the information given?
D) Vitamin D deficiency disrupts the pathway by which calcium is incorporated into the bones
The occipital bone of the skull meets the parietal bone at _________.
lambdoid suture
