Grasshopper Anatomy Flashcards

Questions and Answers

What are antennae used for?

Feeling around and picking up smells (correct)

Holding food

Seeing

Jumping

What is located at the anterior end of the grasshopper's body?

Head

What are ocelli?

Simple eyes that detect light intensity

What is the function of the compound eye?

Helps the grasshopper see Signup and view all the answers

What function do the walking legs serve?

Allow the grasshopper to walk Signup and view all the answers

What does the tarsus do?

Serves as the feet on the legs Signup and view all the answers

Where is the tibia located?

Between the tarsus and the femur Signup and view all the answers

What is the role of the femur?

Serves as the top half of the leg Signup and view all the answers

What connects the femur and the coxa?

Trochanter Signup and view all the answers

What role does the coxa serve?

Attaches the leg to the body Signup and view all the answers

What is located in the thorax?

Prothorax, mesothorax, metathorax, legs, and wings Signup and view all the answers

What does the prothorax do?

Protects the grasshopper Signup and view all the answers

What is the mesothorax?

Part of the thorax that bears the wings Signup and view all the answers

What housing does the metathorax help form?

Inflexible box housing the flight muscles Signup and view all the answers

What does the abdomen contain?

Digestive and reproductive organs Signup and view all the answers

What is the purpose of forewings?

Both A and B Signup and view all the answers

What is a tympanum?

A sound reception structure Signup and view all the answers

What are segments along the abdomen used for?

Allow for flexibility within the exoskeleton Signup and view all the answers

What are spiracles?

Breathing pores Signup and view all the answers

What is the function of an ovipositor?

Used for laying fertilized eggs Signup and view all the answers

What are jumping legs used for?

Allow the grasshopper to jump Signup and view all the answers

What does the labrum do?

Forms the upper lip of the mouth Signup and view all the answers

What function do mandibles serve?

Used to crush and chew food Signup and view all the answers

What is a maxilla?

The bigger three pronged mouthpart Signup and view all the answers

What is the labium?

Smaller bottom lip of the mouth Signup and view all the answers

What is the maxillary palp used for?

Helps move food into the mouth Signup and view all the answers

What is the purpose of the labial palp?

Helps move food into the mouth Signup and view all the answers

What are ganglia?

Globular bulges on the nerve cord Signup and view all the answers

Where does the mouth pull food into?

The body Signup and view all the answers

What is the function of the pharynx?

Pushes food down the esophagus Signup and view all the answers

What does the esophagus do?

Transports food to the crop Signup and view all the answers

What is the crop's function?

Holds food before it goes to the gizzard Signup and view all the answers

Study Notes

Anatomy of Grasshopper

Antennae: Located on the head; sensory organs for detecting smells and environmental cues.
Head: Anterior section housing the brain and sensory equipment; contains the mouth for food intake.
Ocelli: Simple eyes situated behind the antennae; detect light presence and intensity, not detailed images.
Compound Eye: Large structure behind the antennae; critical for vision in the grasshopper.
Walking Legs: First two pairs of legs; facilitate locomotion.
Tarsus: Final segment of the leg; acts as the foot, providing stability.
Tibia: Positioned between tarsus and femur; enables movement necessary for walking and jumping.
Femur: Located between tibia and trochanter; top section of the leg that allows tibia movement.
Trochanter: Anatomical connection between femur and coxa; aids leg functionality.
Coxa: Segment that connects the leg to the body; allows leg mobility while anchoring them.

Thorax Structure

Thorax: Central section between the head and abdomen; comprises prothorax, mesothorax, and metathorax, housing legs and wings.
Prothorax: The first part of the thorax; serves as protective armor for vital organs such as the digestive tract.
Mesothorax: Middle thoracic section; fused with metathorax to create a rigid structure for housing flight muscles and wings.
Metathorax: Last third of the thorax; similarly fused with mesothorax, supporting flight capabilities.

Abdomen Features

Abdomen: Posterior end of the grasshopper; encloses digestive and reproductive organs, often covered by wings.
Forewing: Top pair of wings; provide flight and protection for hindwings.
Hindwing: Bottom pair of wings; essential for flight.
Tympanum: Circular structure on the first abdominal segment; functions in sound detection.
Segments: Partitioned sections along the abdomen; allow exoskeleton flexibility.
Spiracle: Small openings on abdominal segments; serve as breathing pores for the respiratory system.
Ovipositor: Located near the anus in females; used for laying fertilized eggs in the soil.

Mouthparts and Digestive System

Jumping Legs: Last pair of legs; specialized for jumping.
Labrum: Upper lip part of the mouth; forms the anterior boundary of the mouth cavity.
Mandible: Jaws designed to crush and chew food prior to swallowing.
Maxilla: Tri-pronged mouthpart; assists in maneuvering food into the mouth.
Labium: Lower lip, resembling a tick; retains saliva and chewed food in the mouth.
Maxillary Palp: Elongated segment on the maxilla; aids in food manipulation.
Labial Palp: Long segment on the labium; also helps in food movement.
Ganglia: Bulbous structures along the ventral nerve cord; part of the nervous system.
Mouth: Located below the pharynx; responsible for food intake.
Pharynx: Muscle-driven section post-mouth; pushes food into the esophagus.
Esophagus: Tube connecting to the crop; transports ingested food.
Crop: Pre-gizzard storage area; temporarily holds food before digestion.

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Description

Test your knowledge of grasshopper anatomy with these flashcards covering key terms such as antennae, head, and ocelli. Each term includes a definition to enhance your understanding of the insect's structure and sensory features.