Organs that receive various stimuli from the environment and generate appropriate reports through the nervous system are called sensory organs. The sensory organs of the grasshopper are:
1. Light Sensory Organs: The stem and ocellus of the grasshopper are the light sensory organs. An object’s reflection is formed in the constellation. Ocellus perceives the intensity of light.
2. Heat-Sensing Organs: Plantuli pads and roe are heat-sensing organs of grasshopper. Plantuli pads are located at the base of the first three tarsals of the foot. There is Rome in the antenna.
3. Auditory organs: The tympanic membrane and the hairs of the anal canal are the hearing organs of the grasshopper. The tympanic membrane lies on either side of the first ventricular septum.
4. Taste Organs: Maxillary pulp and hairs of labium are the taste organs of grasshopper. It selects suitable food.
5. Olfactory Organs: Some of the antennae’s hairs act as taste organs.
6. Touch Sensory Organs: Antennae, pulp, anal sac and leg hair are touch organs.
Sensory organs are transformed skin cells or sensilli. Each sensilla contains a sensory cell, a trichogen cell and a few tormogen cells. Sensilla are single in sense organs of taste, smell and touch. Sensilla are located in clusters in heat and sound sensory organs. Dr. Siddiq Publications