The mentum is an anatomical structure, a projecting feature that is near the mouth of a variety of animals:
*In
insects, the mentum is the distal part of the
labium. The mentum bears the
palps,
glossae, paraglossae, and/or
ligula
In the brain, the taenia of the fourth ventricle (lingula, tenia of fourth ventricle) are two narrow bands of white matter, one on either side, which complete the lower part of the roof of the fourth ventricle.
Each consists of a vertical and a ...
.
*On the human
face, the mentum refers to the protruding part of the
chin
The chin is the forward pointed part of the anterior mandible (List_of_human_anatomical_regions#Regions, mental region) below the lower lip. A fully developed human skull has a chin of between 0.7 cm and 1.1 cm.
Evolution
The presence of a we ...
.
*In certain
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
s, marine
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusks, the mentum is a thin projection of the soft parts of the animal, below the mouth. It is found in the family
Pyramidellidae.
References
Insect anatomy
Human anatomy
Gastropod anatomy
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