41. The synapse between the afferent and efferent limbs occurs in the lowest sacral segments of the spinal cord. 42. Efferent synapses occur on outer hair cells and on afferent ( towards the brain ) dendrites under inner hair cells43. The femoral canal contains efferent lymphatic vessels and a lymph node embedded in a small amount of areolar tissue. 44. Additionally, vasopressin selectively contracts efferent arterioles probably through the V 1 R, but not the afferent arteriole. 45. Its efferent vessels of all the preceding groups of axillary glands; its efferents pass to the subclavicular group. 46. Its efferent vessels of all the preceding groups of axillary glands; its efferents pass to the subclavicular group. 47. Like you said, afferent & efferent strictly define the ( relative ) directionality of transmission in a neuron. 48. A single taste bud is innervated by several afferent nerves, while a single efferent fiber innervates several taste buds. 49. :" Physiologists divide nerve-fibers, which form the nerves, into two classes, afferent and efferent . 50. The diameter of efferent arterioles is smaller than that of afferent arterioles, increasing the hydrostatic pressure in the glomerulus.