Lecture 1 general info

Question 1

head origins (name head parts)

Answer 1

Front: clypeus and labrum (looks like mouth)
Side before eyes: antenna
Side: eyes and mandibles
Back: Labium and maxilla

Question 2

what does each ommatidium have

Answer 2

lens, crystalline cone, pigment, nerve

Question 3

3 sections of thorax and their parts

Answer 3

pro, meso, metathorax

-notum: dorsal plate
-pleuron: side plate
-sternum: ventral plate

Question 4

info on thorax

Answer 4

-locomotion center
-all legs and wings
-filled with muscles

Question 5

info about abdomen

Answer 5

-tergum, sternum, and pleuron
-elastic pleuron to expand
-segments 1-8 have no appendages but have spiracles
-segments 9-10 have cerci, genitalia, ovipositor or sting

Question 6

exoskeleton info

Answer 6

-limits size
-rigid
-supports muscles and organs

Question 7

epicuticle

Answer 7

-wax and cement layers
-thin, tough insoluble, elastic
-waterproof
-lipids and proteins

Question 8

procuticle

Answer 8

-chitin, polysaccs
-may have resilin (rubber)

Question 9

epidermis

Answer 9

living part of exoskeleton
secretes procuticle and epicuticle during molting

Question 10

basement membrane

Answer 10

impenetrable barrier between hemolymph and cuticle, transports mats, prot

Question 11

insect coloration

Answer 11

-interference: cuticle layers separated by water, usually metallic

-reflection: bumps, pits, ridges

-pigments: flat colors, result of metabolic products