Right: Vaginal lubrication sometimes becomes visible after sexual arousal. Vaginal lubrication is a naturally produced fluid that lubricates a woman's vagina. Vaginal lubrication is always present, but production increases significantly near ovulation and during sexual arousal in anticipation of sexual intercourse.
Marie Iannotti. Definition: A basal leaf is one that grows from the lowest part of the stem. Basal, in general, refers to the base of a structure. Many perennial plants are trimmed back to new basal foliage once the older foliage starts to look tired and worn.
NODE - point at which leaf stalk is attached to stem. PETIOLE - leaf stalk, extends from stem to leaf blade. PRIMARY VEINS - the most prominent veins of a leaf. SECONDARY VEINS - those veins which depart from the primary veins; they may or may not extend to the leaf margin. SINUS - angle or valley between two lobes; may be rounded or angular. STEM - main branch of plant.