Bones of a synovial joint are held together by
A. articular cartilage.
B. a meniscus.
C. a joint capsule.
D. a synovial membrane.
Answer: C
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Extracellular matrix consists of
A) lacunae and lamellae. B) heparin and keratin. C) ground substance and protein fibers. D) fixed cells and wandering cells.
Which would result from ingesting a large amount of salt?
A. urine osmolarity would decrease B. atrial natriuretic factor secretion would decrease C. firing by hypothalamic osmoreceptors would decrease D. secretion of atrial natriuretic factor would increase E. secretion of vasopressin would decrease
The retina is composed of two layers: an inner pigmented layer and an outer neural layer.
Answer the following statement true (T) or false (F)
Why are functions of T-lymphocytes referred to as "cell-mediated" immunity?
A. Because T-lymphocytes are cells and not just plasma proteins B. Because T-lymphocytes work against antigens associated with cells C. Because T-lymphocytes work only against single-celled infectious agents D. Because T-lymphocytes must activate other classes of cells in order to have any effect