A neural tube defect called ________ occurs when the vertebrae fail to develop properly and the spinal cord is exposed.
Fill in the blank(s) with the appropriate word(s).
spina bifida
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Skeletal muscles
A. cross at least two joints. B. extend from a joint to a bone. C. extend from one joint to another joint. D. extend from one bone to another bone. E. do not involve joints.
Older people may require lower drug doses than younger people because ________
A) there is less tissue mass to treat B) their organs are more sensitive to drugs C) they have lower rates of renal clearance D) a lifetime of mutations results in unpredictable drug reactions E) they do not absorb as much drug from the small intestine
Unlike cartilage, bone
A) is a connective tissue. B) has a matrix that contains collagen. C) undergoes remodeling throughout life. D) has an outer covering. E) has cells within lacunae.
All of the following are found in saliva, EXCEPT:
A) pepsin B) bicarbonate C) mucin D) salivary amylase