Which of the following muscles has an actionof medial rotation and adduction of the humerus?
a. Teres major.
b. Latissimus dorsi.
c. Trapezius.
d. Teres minor.
Answer: b. Latissimus dorsi.
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Which statement accurately describes the effects of substrate and enzyme concentrations on reaction rate?
A. An increase in either substrate or enzyme concentration will increase the reaction rate. B. An increase in either substrate or enzyme concentration will decrease the reaction rate. C. An increase in substrate concentration increases the reaction rate, but enzyme concentration has no effect. D. A decrease in substrate concentration or an increase in enzyme concentration increases the reaction rate. E. An increase in substrate concentration or a decrease in enzyme concentration will increase the reaction rate.
This connective tissue is packed with parallel collagen fibers, attaches muscles to bone, and can withstand great stress when pulled in one direction
A) fibrocartilage B) dense regular C) dense irregular D) dense elastic
Before B cells secrete antibodies, they differentiate into ________
A) macrophages B) T cells C) antigen-presenting cells D) plasma cells E) stem cells
Under normal circumstances, the wrist can be hyperextended, but the elbow cannot.
Answer the following statement true (T) or false (F)