What would happen if the posterior root of a spinal nerve were completely transected?
What will be an ideal response?
The posterior roots contain axons of sensory neurons, so input from those afferents within the severed root would not be transmitted to the CNS and thus this lesion would result in a complete loss of feeling from the body region served by the afferent fibers in that posterior root.
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The oily substance found in tears to prevent the eyelids from sticking together is produced by the ________
A) lacrimal glands B) tarsal glands C) ciliary gland D) conjunctiva
Which of the following properly describes the cervix?
A) It is a constricted passageway at the superior end of the uterine cavity. B) It connects to the uterine cavity by the internal os. C) Its outer layer is called the perimetrium. D) It contains fingerlike projections called fimbriae. E) It connects the ampulla and infundibulum.
The exchange of gases between the cells and the blood is called ________.
A. evacuation B. perspiration C. respiration D. ventilation
Which hormones are produced by the parathyroid gland?
A) calcitonin and PTH B) only PTH C) T3 and T4 D) calcitonin and calcitriol