The ventral respiratory group sends impulses through an integrating center in the spinal cord, and then to the intercostal nerves, which stimulate contraction of the diaphragm.
Answer the following statement true (T) or false (F)
False
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Osteoclasts are bone-resorbing cells, whereas osteoblasts are bone-forming cells.
Answer the following statement true (T) or false (F)
The bones of the pelvis
A) are bones of the axial skeleton only. B) are bones of the appendicular skeleton only. C) include portions of both axial and appendicular elements. D) include two prominent sesamoid bones. E) are connected anteriorly at the pubic symphysis and posteriorly by an interosseous membrane.
Cells infected by viruses present the viral antigens on ________ to T cells.
A. class-2 MHC molecules B. CD8 coreceptors C. CD4 coreceptors D. class-1 MHC molecules
The bones that form the palm are the
A) carpals. B) tarsals. C) metacarpals. D) metatarsals. E) phalanges.