Test 3 Flashcards
Why know insect structure?
Know how to control and id.
3 regions
Head-food intake, sensory system
Thorax- movement
Abdomen-repro,digestion.
Insects skeleton, purpose, muscle attachment/why?
Exoskeleton
Protect internal organs
Hinged joints inside wall
Flexibility
Scleritis
Hard plates of exoskeleton
2 layers
Cutical -procuticle inside wall-harden 24h -exocuticle outside wall-harden24h -epicuticle rain keep from suffocating Epidermis Setae hair
head
5 or 6 fused segments
Eye types (2)
Compound
Ocelli single eye
Antenna
Feel vibs, classification, & gender
Mouthparts
Chewing
Piercing sucking
Chewing-
Mandibles projects like teeth, side of jaw. Work sideways, tear leaf material
Maxillae behind- push food down
Palp
Feelers for taste smell touch
Lips of chewing insects
Labrum- keep food from coming up
Labium- food in, push food receptors
Piercing sucking
Labrium- beak
Stylets-straw for sucking
Puncture plant, release enzymes, suck soup
Thorax
11 fused segments
Spiracles
Breathing system
Insect legs
Cox-attachment Throchanter- attachment Femur- thy Tibia- calf, shin/ short running strides Tarsus- foot