Vasculogenesis refers to
A) the growth of new blood vessels from preexisting vessels.
B) the development of heart tissue.
C) the formation of the first vessels.
D) the formation of arteries only.
E) the formation of veins only.
Answer: C
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Which of the following muscles inserts at the calcaneal tendon?
A) gastrocnemius B) sartorius C) tibialis anterior D) semitendinosus
All of the following are true of epidermal ridges except that they
A) extend into the dermis. B) contain increased numbers of free nerve endings. C) cause ridge patterns on the surface of the skin. D) produce patterns that are determined genetically. E) interconnect with the dermal papillae.
Using Figure 20.1, match the following:
1) Heavy chain.
2) Light chain.
3) Variable region.
4) Constant region.
5) Antigen-binding site.
A patient visits her doctor and explains that since being hit on the cheek with a hockey puck she has been suffering from dry eyes and a dry mouth. It's apparent to the doctor that, because both lacrimal secretion and salivary secretion are affected, there may be damage to the ________ nerve.
A. abducens B. hypoglossal C. glossopharyngeal D. trigeminal E. facial