What does afferent mean?
The definition of afferent
Af”fer*ent, a.
Etym: [L. afferens, p. pr. of afferre; ad + ferre to bear.] (Physiol.)

Bearing or conducting inwards to a part or organ; — opposed to efferent; as, afferent vessels; afferent nerves, which convey sensations from the external organs to the brain.