निम्नलिखित में से कौन सी भक्षकाणु (फैगोसाइटिक) कोशिका नहीं है... | Agrigyan

Diagnostic morphology of dipteran third-stage larval posterior spiracles:

• Gasterophilus intestinalis (Horse bot fly): Posterior spiracular plates lack a distinct peritreme button and exhibit three curved, elongated, parallel, bow-shaped (arcuate) slits within each plate.
• Oestrus ovis (Sheep nasal bot): Possesses D-shaped / kidney-shaped spiracular plates with numerous small pores and a central button.
• Hypoderma bovis (Cattle warble fly): Features kidney- or crescent-shaped spiracular plates containing numerous small apertures.
• Lucilia sericata (Blowfly): Possesses complete, round peritremes with three straight or slightly curved subparallel slits and an enclosed button.
  
  Option analysis:
• Possesses kidney-shaped plates with porous structure.
• Possesses crescentic plates with pores.
• Possesses straight slits within an encircling peritreme.
• (Gasterophilus intestinalis): Correct. Distinctive bow-shaped slits characterize its posterior spiracular plates.

Larva migrans manifestations caused by parasitic nematodes:

• Gnathostoma spinigerum (Spirurida nematode of felines and canines): In paratenic and aberrant human hosts, the advanced third-stage larva ($L_3$) cannot mature into an adult worm and undergoes erratic, aggressive migration. It causes Cutaneous Larva Migrans (migratory, pruritic subcutaneous nodules or creeping eruptions) as well as Visceral Larva Migrans (invading internal visceral organs, lungs, gastrointestinal tract, eyes, and central nervous system / eosinophilic meningoencephalitis).
• Toxocara canis: The classic agent of Visceral Larva Migrans and Ocular Larva Migrans.
• Ancylostoma caninum and A. braziliense: Classic causative agents of Cutaneous Larva Migrans (creeping eruption).
• Strongyloides stercoralis: Causes larva currens, a rapidly advancing serpiginous cutaneous track.
  
  Option analysis:
• Causes Visceral Larva Migrans (VLM) and Ocular Larva Migrans (OLM).
• Causes Cutaneous Larva Migrans (CLM).
• Causes larva currens.
• (Gnathostoma spinigerum): Correct. Causes both cutaneous swelling/nodules (CLM) and invasive organ involvement (VLM).

Oviposition sites of equine bot flies (genus Gasterophilus):

• Gasterophilus intestinalis (Common horse bot fly): Females glue their yellowish eggs primarily to the hairs of the forelegs, particularly around the fetlock joint, knees, and the shoulders / scapular region. The eggs require warmth and moisture stimulated by the horse's licking to hatch.
• Gasterophilus nasalis (Throat bot fly): Deposits yellowish-white eggs on hairs of the intermandibular space (between the rami of the mandible).
• Gasterophilus haemorrhoidalis (Nose bot fly): Glues dark brownish-black eggs to the fine hairs of the lips and around the mouth.
• Gasterophilus pecorum: Lays black eggs on pasture grasses and stable fittings.
  
  Option analysis:
• (Fetlock and scapular region): Correct. Primary oviposition sites for Gasterophilus intestinalis.
• Oviposition site for Gasterophilus nasalis (throat bot).
• Oviposition site for Gasterophilus haemorrhoidalis (nose bot).
• Incorrect oviposition site.