What is a maxilla used for?

What is a maxilla used for?

There are multiple functions of the maxilla. It provides critical bone structure to the skull and defines the face, for example. Since it houses the upper teeth and forms a portion of the jaw, the maxilla is necessary for the process of mastication (chewing) and speaking.

Which among the following is called second maxilla in insect?

* The labium is a single structure, but evolved from 2 maxilla-like structures, and lies behind the maxillae. The labium represents the paired 3rd gnathal appendages that have fused together, and they are sometimes called the 2nd maxillae of the insects.

What is the function of Gnathochilarium?

In millipedes, the second maxillae have been lost, reducing the mouthparts to only the first maxillae which have fused together to form a gnathochilarium, acting as a lower lip to the buccal cavity and the mandibles which have been enlarged and specialized greatly, used for chewing food.

What is the function of labium in cockroach?

The labium however resembles closely a quadrilateral that is formed due to the fusion of paired secondary maxillae. Their primary function is to manipulate food during mastication.

Do we have 2 maxilla?

In humans, the upper jaw includes the hard palate in the front of the mouth. The two maxillary bones are fused at the intermaxillary suture, forming the anterior nasal spine. This is similar to the mandible (lower jaw), which is also a fusion of two mandibular bones at the mandibular symphysis.

What does the maxilla articulate with?

Structure and Function [3] The maxilla connects with surrounding facial structures through four processes: alveolar, frontal, zygomatic and palatine. It articulates superiorly with the frontal bone, the zygomatic bone laterally, palatine bone posteriorly and with the upper teeth through the alveolar process inferiorly.

What is insect maxilla?

Maxillae (singular Maxilla) are part of an insect’s mouthparts. The maxilla are paired and arranged behind the mandibles. They are used to hold and manipulate food so that it can be chewed or sliced by the mandibles. The maxillae have palps – segmented appendages that perform a sensory role.

What is the function of maxillary Palp in mosquito?

The antennae and maxillary palps play a major role in host detection and other sensory-mediated behaviors. Compared to the antennae, the maxillary palps are a relatively simple organ and thus an attractive model for exploration of the neuromolecular networks underlying chemo- and mechanosensation.

What is the function of crop in alimentary canal of cockroach?

The distal end of the oesophagus enlarges into a large sac like structure called crop which is useful to store the food prior to digestion. The posterior part of the crop narrows down to a small sac, the gizzard or proventriculus.

What is maxillary Palp in cockroach?

The maxillary palp has a long micro-furrow near the ventral edge of the medial surface of the fifth segment, which has a high population density of 73,700 sensilla/sq. This groove-and-slit sensillum is a new sensillum described for the first time in insects, and we designate it as GAS sensillum.

What is the process of the maxilla?

Each maxilla has four processes (frontal, zygomatic, alveolar, and palatine) and helps form the orbit, roof of the mouth, and the lateral walls of the nasal cavity.