Helper T (TH) cells do not ________.
A. secrete fever-producing chemicals
B. secrete cytokines that stimulate clonal selection of B cells
C. secrete cytokines that stimulate macrophage activity
D. secrete inflammatory chemicals
E. secrete cytokines that stimulate clonal selection of cytotoxic T cells
Answer: A
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Of the muscles listed, the only one that attaches distally on the head of the fibula is the
A. tensor fasciae latae. B. gluteus maximus. C. semimembranosus. D. semitendinosus. E. biceps femoris.
The systemic circuit
A. brings oxygen-rich blood from the tissues. B. sends oxygen-poor blood to the heart. C. sends oxygen-rich blood to the tissues. D. brings oxygen-poor blood from the lungs.
Which of the following are principal organs of the respiratory system? Select all that apply.
_____ Esophagus _____ Bronchi _____ Pharynx _____ Nose What will be an ideal response?
Which muscle will depress the scapula or elevate the ribs?
A. levator scapulae B. serratus anterior C. pectoralis minor D. subclavius E. rhomboideus major