A pilus is a ________.
A. sensory nerve fiber around the base of a hair
B. gland associated with a hair follicle
C. tiny muscle that moves a hair
D. hair follicle
E. hair
Answer: E
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List and discuss three to five different methods of contraception, including at least one barrier method and one hormonal treatment.
What will be an ideal response?
Which of the following does not turn off the thirst center of the brain?
A. Increased blood pressure B. Decreased salivary secretions C. Decreased blood osmolarity D. Entry of fluid in the stomach
Which of the following choices lists a correct sequence of events following the depolarization of transverse tubules in excitation-contraction coupling in cardiac muscle?
A. Calcium ion influx through sarcolemma, calcium release into cytosol, actin and myosin attach, thin myofilaments slide toward the middle of sarcomeres B. Calcium release into cytosol, actin and myosin attach, calcium ion influx through sarcolemma, thin myofilaments slide toward the middle of sarcomeres C. Calcium release into cytosol, calcium ion influx through sarcolemma, actin and myosin attach, thin filaments slide toward the middle of sarcomeres D. Calcium release into cytosol, actin and myosin attach, thin filaments slide toward the middle of sarcomeres, calcium ion influx through sarcolemma E. Actin and myosin attach, thin filaments slide toward the middle of sarcomeres, calcium release into cytosol
Which of these does NOT provide a physical or chemical barrier?
a) Macrophages b) Saliva c) Urine d) Mucus e) Stratified squamous epithelium