preoral
Anterior to mouth
Preoral means situated in front of or preceding the mouth.
The term appears in anatomy and zoology to describe structures anterior to the oral opening: preoral cavity, preoral lobe.
In embryology, it may refer to developmental stages before the mouth forms.
Oral opening
- pharynxMuscular throat cavity
- buccalPertaining to cheeks
- esophagusFood tube to stomach
- feedingGiving food to
ingestion · foregut · proboscis · rostrum · labrum · cephalic · anterior · gullet
Oral feeding structures
- mandiblesPaired arthropod mouthparts
- maxillaeUpper facial bones
- palpsArthropod sensory appendages
- antennaeSensory appendages on insects
appendages · arthropods · crustaceans · nematodes · larvae · proboscis · labrum · feeding
Mouth's digestive secretion
- amylaseStarch-digesting enzyme
- enzymeProtein that hastens reactions
- secretionSubstance released by glands
- glandSecreting body organ
salivary · mastication · bolus · digestion · absorption · nutrient · carbohydrate · protein
mouth
Oral opening
feeding · ingestion · foregut · proboscis · rostrum · labrum · cephalic · anterior · gullet
mouthparts
Oral feeding structures
antennae · appendages · arthropods · crustaceans · nematodes · larvae · proboscis · labrum · feeding · gastropods
saliva
Mouth's digestive secretion
- amylaseStarch-digesting enzyme
- enzymeProtein that hastens reactions
- secretionSubstance released by glands
gland · salivary · mastication · bolus · digestion · absorption · nutrient · carbohydrate · protein · breakdown