The Grasshopper Dissection

Life Science

The Grasshopper Body Segments

• Head• Thorax• Abdomen

Head

Thorax

Abdomen

The Simple & Compound Eyes

Compound Eye

Simple Eyes

Appendages (Thorax)

• 3 pairs of legs

• 2 pairs of wings

Wings

Tympana

• Senses sound waves like an ear.

Tympanum

Female Ovipositors

• 2 sets of ovipositors

Ovipositors

Male

• Lacks ovipositors

Mouthparts

1. 2 mandibles

2. 2 maxillae

3. 1 labrum

4. 1 labellum

Mandible

Labrum

Maxilla

Labellum

Air Sacs

Air Sacs

Tubular Heart

Anterior End Tubular

Heart

Ovaries

Ovaries

Oviduct

Ovipositor

Alimentary Canal

Anterior End

Esophagus

Esophagus

Crop

Gastric Caeca

Gastric Caecum

Gizzard

Gizzard

Stomach

Posterior End

Stomach

Intestine

Intestine

Malpighian Tubules(stringy)

Rectum

Rectum

Inside the Alimentary CanalStomach & Intestine

(many folds)

Crop & Gizzard(smooth)

Ventral Nerve Chord