Describe the two basic parts of the micturition reflex
What will be an ideal response?
First, stretch receptors in the wall of the urinary bladder send an afferent signal to the sacral portion of the spinal cord. Second, parasympathetic efferent fibers stimulate the detrusor muscle of the urinary bladder to contract and the internal urethral sphincter to relax. Thus, urine is forced out of the urinary bladder into the urethra, causing micturition.
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Which cells have a primary role in cell-mediated immunity?
A) B cells B) T cells C) NK cells D) antigens E) plasma cells
Which of the following muscles adducts and medially rotates the thigh?
A. Piriformis B. Rectus femoris C. Gracilis D. Adductor magnus E. Sartorius
Which of the following will cause the plasma membrane to hyperpolarize when at its resting membrane potential?
A. An inflow of Na+ B. An inflow of Cl? C. An inflow of K+ D. An outflow of Cl? E. An inflow of Ca2+
Even though all action potentials are the same, the brain can differentiate a variety of stimuli by source and intensity. The mechanism by which the nervous system converts these action potentials into meaningful information is called neural ________.
A. recruitment B. facilitation C. pooling D. integration E. coding