(Definition of âravishingâ from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press) Translations of âravishingâ in Vietnamese
Page issues. The pharynx (plural: pharynges) is the part of the throat that is behind the mouth and nasal cavity and above the oesophagus and the larynx, or the tubes going down to the stomach and the lungs. The pharynx is an organ found in vertebrates and invertebrates, though the structure is not universally the same across all of those species.
Structure. The primitive brain of the earthworm consists of two cerebral ganglia. Sensory nerves leave the brain and run forward to the first segment in the earthworm's body. The nerve cord travels from this first segment to the last.A fibrous sheath surrounds the nerve cord.hile humans and other vertebrates have a spinal column that runs down their back, or dorsal side, earthworms possess a nerve cord consisting of two strands that runs down their belly, or ventral side.