Injurious and Venomous Arthropods

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/31

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

32 Terms

1
New cards

Skin lesions, allergic reactions, direct injury, and transmission of vector-borne diseases

What are the key health effects caused by biting and stinging arthropods?

2
New cards

Through mouthparts, stingers, urticating hairs, venom proteins, and saliva that can lead to secondary bacterial infections.

How do arthropods cause direct damage to tissue?

3
New cards

Staphylococcus or Streptococcus infections.

What bacterial infections may follow from scratching bites/stings?

4
New cards

Their wing scales (converted hairs) can become airborne, leading to dermatitis, eczema, asthma.

How can butterflies cause allergic reactions?

5
New cards

Biting and chewing, sponging, piercing-sucking (important for pathogen transmission).

What are the three types of insect mouthparts relevant to biting?

6
New cards

Visual cues, vibrations, movement, alarm chemicals, or nest disturbance.

What triggers arthropod stinging behavior?

7
New cards

A modified ovipositor with venom and Dufour’s glands.

What anatomical structure is the sting derived from?

8
New cards

Pheromones

What does Dufour’s gland produce?

9
New cards

Bees, wasps, ants.

What insects belong to Hymenoptera?

10
New cards

Symphyta – No constriction between thorax and abdomen
Apocrita – Constriction (petiole) present between thorax and abdomen

What are the two suborders of Hymenoptera and their difference?

11
New cards

Due to barbed lancets in their sting.

Why do worker bees leave their stingers in the skin?

12
New cards

Melittin

What is the primary pain-causing and lethal agent in bee venom?

13
New cards

Hyaluronidase

Which venom component breaks down hyaluronic acid to spread toxins?

14
New cards

Apamin

Which neurotoxin in bee venom blocks potassium channels?

15
New cards

Mast Cell Degranulating Peptide (MCD).

What venom compound causes histamine release?

16
New cards

Dopamine and Noradrenaline.

What components modulate pain perception and heart rate?

17
New cards

Protease inhibitors

What helps venom components resist host degradation?

18
New cards

Tarantula hawk (Pepsis chrysothemis)

What insect causes one of the most painful stings?

19
New cards

Pustules with localized swelling and inflammation.

What kind of lesion do fire ant stings produce?

20
New cards

Buthidae

Which scorpion family is dangerously venomous to humans?

21
New cards

Burning, swelling, stabbing pain, and in severe cases: nausea, vomiting, paralysis, renal failure, or anaphylaxis

What symptoms are caused by urticating caterpillars?

22
New cards

Brown recluse spider (Loxosceles spp.).

Which spider is known for necrotic lesions?

23
New cards

Sphingomyelinase D.

What is the major necrosis-causing enzyme in brown recluse venom?

24
New cards

α-Latrotoxin

What neurotoxin is in black widow (Latrodectus spp.) venom?

25
New cards

Central white spot with surrounding erythematous halo

What characterizes a hymenopteran sting?

26
New cards

Urticarial wheals, papules, vesicles, sometimes scarring or nodules

What symptoms follow insect bites?

27
New cards

Scrape off stinger, wash area, apply cold compress, take antihistamines and acetaminophen

How should bee stings be treated initially?

28
New cards

Soap and water, cold compress, 1% hydrocortisone cream, antihistamines, and acetaminophen

What helps treat insect bites?

29
New cards

Tick (Lyme disease)

What insect bite is most associated with a "bullseye" rash?

30
New cards

Bed bugs

Which insect typically bites in a line on the body?

31
New cards

Flea bites

What bite causes clustered bites on ankles/legs and turns white on pressure?

32
New cards

Kissing bug

What bug bite is associated with Chagas disease?