Module 4 Insect Anatomy Flashcards Preview

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Flashcards in Module 4 Insect Anatomy Deck (22):
1

3 body segments

1. head - antennae, eyes, mouthparts
2. thorax - legs, wings
3. abdomen - respiratory, reproductive, digestive

2

functions of cuticle (exoskeleton)

1. physical protection
2. prevents water loss
3. rigid surface for muscle/organ attachment
4. sensory interface for hairs/spines

3

resilin

rubber-like protein in exoskeleton that acts like springs (i.e. fleas)

4

arthrodial membrane

unhardened cuticle between segments that allows for expansion as insects feed

5

spine

cuticular extension
multicellular specialized

6

seate

cuticular extension, sensory hair, multicellular

7

acanthae

unicellular cuticular extension

8

microtrichia

cuticular extension, few to many per cell

9

chewing mouthparts

1. labrum - upper lip, covers mandible
2. hypopharynx - tongue
3. mandibles - crush food
4. maxillae - hold food
5. labium - lower lip

10

sucking mouthparts

1. labrum - forms food channel
2. hypo pharynx - forms salivary tube
3. mandibles - pierce skin
4. maxillae - pierces skin
5. labium - sheath

11

telmophages

pool feeders
cut skin then feed from blood pool
(i.e. deer flies)

12

solenophages

vessel feeders
penetrate capillaries then feed directly on blood
(i.e. mosquito)

13

parts of antennae

1. scape - basal stalk
2. pedicle - Johnston's organ, sound-reception organ
3. flagellum - remainder of antennae
4. chemical receptors

14

antennae types

1. filiform - cockroaches
2. moniliform - termites
3. clavate, serrate, pectinate, flagellate - beetle
4. geniculate - ants
5. plumose - mosquitoes
6. aristate - fly

15

segments of thorax

1. prothorax
2. mesothorax
3. metathorax

16

segments of leg

coxa, trochanter, femur, tibia, tarsus

17

apterygota

no wings
primitive trait

18

pterygota

has wings
-2 pairs
-1 pair with second being reduced
-wingless (lost or evolved from wingless ancestors)

19

paleoptera

type of pterygota
Old wing
can't fold wing over abdomen
all wings outside

20

neoptera

type of pterygote
New wing
can fold wings over abdomen

21

exopyterygota

type of neoptera
wing buds external
hemimetabolous

22

endopterygota

type of neoptera
wing buds internal
holometabolous