The immune system is an organ system of the body that works with the lymphatic system to protect against the invasion of pathogens.
Answer the following statement true (T) or false (F)
False
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To produce a contraction similar to the one in graph (b), the muscle
A) must be stimulated to the point of fatigue. B) must be stimulated again before it has relaxed from the previous stimulation. C) is excited by a stimulus of increasing intensity. D) must go through a rapid series of isolated twitches. E) generates more and more thin and thick filaments.
Articular discs
1. maintain the stability of a joint. 2. direct flow of the synovial fluid to areas of greatest friction. 3. are made of hyaline cartilage. 4. are only found in the vertebral column. a) 1 only b) 2 only c) 3 only d) 4 only e) 1 and 2
Which muscle is an antagonist to the psoas major?
A. Gluteus medius B. Biceps femoris C. Tensor fasciae latae D. Adductor longus E. Rectus femoris
Which of the following is NOT a mechanism of complement action?
A. Attracts other immune cells to the site of infection B. Forms a MAC that leads to cell lysis C. Opsonization D. Produces cytokines