What Is Medical Entamology Flashcards
What is medical entomology?
Medical entomology is the science to study insects and closely related arthropods that impact human health.
What are arthropods?
Arthropods are invertebrates with jointed legs
Features of arthropods
Jointed legs/ appendages
Segmented body : head, thorax, abdomen
Exoskeleton
Bilaterally symmetrical body
Classification of arthropods
Insecta - flies, mosquitoes, lice, fleas, bugs n nits
Diplopoda - millipedes
Chilopoda - centipedes
Crustacea - prawn n crab
Arachnida - spider, scorpion, mites n ticks
Description of insecta
- 3 body segments : head, thorax , abdomen
- 6 legs / 3 pairs of legs
- I pair of antennae
Description of diplopoda
- many body segments
- 2 pairs of legs per body segment
- 1 pair of antennae
Description of chilopoda
- many body segments
- 1 pair of legs per body segment
- 1 pair of antennae
- poison claws
Description of crustacea
- body segments varied
- head, thorax and abdomen are fused
- varied number of legs
- 2 pairs of antennae
What is cephalothorax
The fused head and thorax of arthropods
Description of arachnida?
2 body segments : cephalothorax n abdomen
8 legs
No antennae
What is life cycle?
Life cycle is the series of development or stages through which an organism passes during its life time
Two types of life cycle
- hemimetabolous - incomplete
- holometabolous - complete
Two types of life cycle
- hemimetabolous - incomplete
- holometabolous - complete
Hemimetabolous life cycle description
Three distinct forms / stages
- egg
- nymph (juvenile of adult)
- adult
Examples of hemimetabolous life cycle species
Cockroaches
Lice
Bugs