Tiny Marine Worms That Burrow Through Mud by Extending the Head

question 12

Short Answer

Tiny marine worms that burrow through mud by extending the head and anchoring it by recurved spines are ________________.

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Definitions:

Neuromuscular Junction

The synapse or junction where a motor neuron communicates with a skeletal muscle fiber, causing it to contract.

Acetylcholine

A neurotransmitter responsible for stimulating muscle contraction in the peripheral nervous system and involved in memory, attention, and learning in the central nervous system.

Dopamine

A neurotransmitter involved in controlling movement, mood, and motivation, often associated with the body's reward system.

Proprioception

Perception of the position and movement of the body, limbs, and head.