Describe briefly each mouth part of the grasshopper b Descri

Describe briefly each mouth part of the grasshopper. b. Describe how each of the following mouth parts of the moth, flesh fly. and mosquito have been modified in comparison to the grasshopper. Vocabulary used in drawings: lbr = labrum lbm = labium md = mandible mx = maxillae hyp = hypopharyn p = palp: mxp = maxillary palp lbp = labial palp fc = food channel sc = salivary channel clp = lower part of the head capsule (not a mouth part) Parts of labium: bk, hst, lbl

Solution

Answer:

2a)Mouthparts of grass hoper:

1)Mandibles:A grasshoper has a pair of mandibles on each side of head. the mandibles are the largest and most robust mouthparts of a chewing insect, and it uses them to cut, tear, crush, chew food items. Two sets of muscles move the mandibles in the coronal plane abductor muscles move insects mandibles apart adductor muscles bring them together . This they do mainly in opening and closing their jaws in feeding, but also useful the mandibles as tools, or possibly help in fighting .The mandibles are caudal to the labrum and anterior to the maxillae.

2) LABRUM: A simple plate-like sclerite that serves as a front lip to help contain the food.it is broad ,roughly rectangular shaped.

3)MAXILLAE:—pair of structures lying outside and behind the mandibles. Each of them consist of 5-segmented sensory maxillary palp in addition to other parts. The maxillae are used to manipulate the food before it enters the mouth. paired appendages with the following parts:

Forms the broad median lower lip consisting of several parts in addition to a pair of 3-segmented labial palps on either side.

The mandibles and the maxillae grind the food by moving it laterally.

5)HYPOPHARYNX: a tongue-like process that helps mix food and saliva.it is found attached to the labrum.The hypopharynx is a somewhat globular structure, located medially to the mandibles and the maxillae. it is membranous and associated with salivary glands. It assists in swallowing the food....