Apodeme

Definition

Internal ridges or ingrowths of an arthropod's exoskeleton that serve as attachment points for muscles, providing structural support and leverage for movement.

Etymology

Derived from the Greek 'apo-', meaning 'away from', and 'demē', meaning 'a bond or fastening'.

Example

The apodeme in the leg of a grasshopper provides a sturdy structure for muscle attachment, facilitating jumping movements.

Related Terms

• Exoskeleton
• Muscle attachment
• Sclerite

Usage Notes

Apodemes are crucial for the movement and mechanical efficiency of arthropods, acting similarly to tendons in vertebrates.