Q. Note the following words. I.Fenestra II. Pedical III.Lacinia IV. Flagellum V.Galea VI. Mentum VII.Palpifer VIII. Cardo IX.Glossa Which of the above found in the first pair of maxillae in case of cockroach?
A) III, V, VII and VIII
B) I, III, V and IX
C) I, VI, VII and IX
D) II, V, VII and IX
Explanation
Maxillae are appendages of 5^(th) head segment and known as first pair of maxillae. The first maxillae of cockroach has biramous structure, with protopodite containing cardo as its basal portion alongwith stipes articulated at$\ 90{^\circ}$. Stipes bear a five jointed expedite or maxillary palp towards outside (its basal podomer called palpifer) and endopodite towards inside, with two closely placed podomeres celled galea and lacinia.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.