| | Conditions & Treatments | Brain & Nervous System What synapse is more common in embryonic nervous tissue than adults? The correct answer would be asymmetric synapse. Asymmetric synapses are more common in embryonic nervous tissue than in adults. Brain & Nervous System - Related Articles Signs & Symptoms of Dementia in Elderly people How to Diagnose Anterior Interosseous Nerve Syndrome How to Manage Passive Aggressive Behavior How to Treat a Closed Head Injury How to Treat Rett Syndrome 4 ways to care for the circulatory system? What are the two main part of circulatory system?