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Medical Entomology > Video Discussion (Laboratory Only) > Flashcards

Video Discussion (Laboratory Only) Flashcards

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USMLE® Step 1 flashcards
1
Q

what matters when identifying insects, and what does not?

A

what matters - external morphology like wings, abdomen, etc
what does not mattercolor shape size

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2
Q

most commonly used view for identifying insect

A

lateral view

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3
Q

three major segments of insects

A

head, thorax, abdomen

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4
Q

how many segments does arachnids have?

A

two

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5
Q

3 segments of thorax

A

pro, meso, meta

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6
Q

what segment of the thorax is the first pair of wings connected?

A

meso

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7
Q

what segment of the thorax is the second pair of wings connected?

A

meta

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8
Q

mechanical and chemical sensory receptors of the insect

A

antennae

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9
Q

most basic antennae, looking like strings coming out from it

A

filiform

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10
Q

type of antennae that have little balls attached to each other, coming off like a pearl necklace from the insect

A

monoliform

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11
Q

kind of antennae that has two meanings:
big lobe in front of the face, having a hair stick out of it, or setaceous

A

aristate or setaceous

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12
Q

what insect that has setaceous antennae

A

mayflies etc

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13
Q

kind of antennae that looks like lobster claw coming off the insects face

A

stylate

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14
Q

in what mosquitoes does stylate antennae usually seen?

A

flies, esp in horseflies

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15
Q

a kind of antennae that looks like a filiform but differentiated by a big club at the end, usually seen in butterflies

A

capitate

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16
Q

kind of antennae that looks like monoliform but at the end has thicker and the club is made up of one or more segments; seen in beetles

A

clavate

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17
Q

kind of antennae that looks like a filiform but has triangle looking like a saw

A

serrate

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18
Q

kind of antennae that looks like an exaggerated version of serrate; giant piece of antennal segment coming out

A

pectinate

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19
Q

kind of antennae that has three long segments at the end were elongated that can be pulled in as club

A

lamellate

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20
Q

in what insect are lamellate antennae only seen?

A

scarerabs

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21
Q

kind of antennae that has like a giant fin sticking out of it

A

flabellate

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22
Q

kind of antennae that has long hair; common in male mosquitoes

A

plumose

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23
Q

kind of antennae that has short hair; common in female mosquitoes

A

pilose

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24
Q

kind of antennae that halfway through, has a joint or “elbowed antennae”

A

geniculate

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25
Q

part of antennae that is connected in the head

A

antennal sclerite

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26
Q

antennal segment next to antennal sclerite; the first true segment

A

scape

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27
Q

second true antennal segment

A

pedicel

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28
Q

what antennal segment houses the johnson’s organ for sensory cells?

A

pedicel

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29
Q

rest of the antennal segment that is segmented to flagellomeres

A

flagellum

30
Q

types of mouthparts

A

mandibular, proboscis, hemipteran beak

31
Q

mouthpart orientations

A

prognathus (forward mouth), hypognathous (down mouth), opisthognathous (backwards mouth)

32
Q

why do female mosquitoes need to have blood-meal?

A

lack of protein; they have to get nutrients from host

33
Q

a normal process where female mosquito takes blood-meal to obtain proteins to kick start the metabolism of their reproductive system

A

anautogenous

34
Q

part of mouth that covers all parts

A

labium

35
Q

mouth part that holds the skin to open

A

paired mandible

36
Q

mouthpart that is a tube-like responsible for sipping blood

A

hypopharynx aka stylet

37
Q

from what mouth part do saliva came from?

A

hypopharynx

38
Q

mouth part that cuts/pierces through the skin

A

paired maxillae

39
Q

mouth part that detects where the blood vessels are located

A

labrum

40
Q

mouth part that cleans the skin debris

A

labella

41
Q

the process where morphological adaptation occurs due to the harsh environment

A

convergent evolution

42
Q

difference of walking stick and stick grasshopper

A

walking stick’s feet - faces forward
stick grasshopper’s feet - faces backward

43
Q

2 major types of eyes of insects

A

compound eyes, and ocelli eye

44
Q

type of leg: used for predation, has spikey tibia

A

raptorial

45
Q

type of leg:
found in mole crickets
used for: digging and burrowing

A

fossorial

46
Q

type of leg: swimming legs
found in aquatic bugs or beetles

A

natatorial

47
Q

type of leg: jumping leg
mainly seen in grasshoppers and cricket

A

saltatorial legs

48
Q

type of leg: running legs
seen in cockroaches, allows them to move quickly

A

cursorial legs

49
Q

type of leg: creeping or walking legs

A

gressorial legs

50
Q

part of leg that connects the leg to the body

A

coxa

51
Q

pretty small leg segment after the coxa

A

trochanter

52
Q

first long big segment of the leg

A

femur

53
Q

second long big segment of the leg

A

tibia

54
Q

toes of the insect

A

tarsomeres

55
Q

part of leg after tibia; has tarsomeres and cerci

A

tarsus

56
Q

two type of membranous wing

A

regular membranous (dont have lots of wingbination) or reticulate (common in dragonfly)

57
Q

type of wing: forewing is leathery, protecting the membranous hindwing from the back

A

tegmina (seen in cockroach)

58
Q

type of wing: harden shell in the beetles; actually the forewing

A

elytra

59
Q

type of wing: first half of forewing is hardened in like a thick-leathery texture whereas the other half of the forewing is membranous

A

hemelytra

60
Q

type of wing: hindwing is completely reduced into a knob-like used as balancing object, like a gyroscope

A

haltere

61
Q

a wind hooking mechanism that looks like a chew gum (?) coming out of the forewing holding the hindwing

A

jugum

62
Q

a wind hooking mechanism that looks like a little hook in the forewing but better mechanism that jugum

A

retinaculum

63
Q

a wind hooking mechanism is a really thick bristle from the hindwing that goes into the forewing and catches the retinaculum

A

frenulum

64
Q

a wind hooking mechanism seen in wasps and bees, looking like row of hooks in the hindwing that catches the forewing

A

hamuli

65
Q

a thick vein that runs on top of the wing

A

coastal margin

66
Q

couple of veins below coastal margin

A

subcosta

67
Q

where are ears of cricket located

A

tibia of foreleg

68
Q

where are ears of moth located

A

side of thorax

69
Q

where are ears of grasshopper located

A

1st abdominal segment

70
Q

where are ears of praying mantis located

A

middle of thorax

71
Q

terminal pieces found at the last segment of the insect

A

cerci

72
Q
A

Medical Entomology (3 decks)

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