What is the effect of oxytocin during parturition?
A) Oxytocin increases contractions of the uterus.
B) Oxytocin inhibits contractions of the uterus.
C) Oxytocin causes pelvic ligaments and the pubic symphysis to relax.
D) Oxytocin promotes lordosis of the lumbar curvature.
E) Oxytocin causes difficulty breathing (dyspnea).
A
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A lymphocyte that is fully mature and therefore able to participate in the immune response is said to be ________.
Fill in the blank(s) with the appropriate word(s).
The sympathetic preganglionic neuron cell bodies are housed in the ________ horn of the appropriate thoracolumbar regions of the spinal cord.
Fill in the blank(s) with the appropriate word(s).
Nerve tracts that connect between the cerebrum and other parts of the brain and spinal cord are called
A) association fibers. B) commissural fibers. C) projection fibers D) all of the above
An irregularity in curvature in the cornea or lens, called ________, causes a reduction in visual acuity
A) astigmatism B) glaucoma C) a cataract D) macular degeneration E) corneal atrophy