PORTA
\pˈɔːtə], \pˈɔːtə], \p_ˈɔː_t_ə]\
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1. The part of an organ where the vessels and nerves enter and the excretory ducts pass out, hilum, hilus. 2. The foramen of Monro.
By Stedman, Thomas Lathrop
By William R. Warner
By Henderson, I. F.; Henderson, W. D.
Word of the day
nerve fiber
- a threadlike extension of nerve cell Slender processes of neurons, especially the prolonged axons that conduct nerve impulses. One units trunk; it is axis process a neuron and medullated, i. e. white substance Schwann (myelin), medullated; either the medullated non-axis-cylinder or may not be surrounded by primitive sheath neurilemma, so that there are four forms of nerve-fibers.