Medial & Lateral Pathways in the Extrapyramidal System

These flashcards cover key concepts related to the medial and lateral pathways within the extrapyramidal system, focusing on their functions and components.

Medial Pathway

Responsible for muscle tone and gross movements of neck, trunk, and proximal limb muscles.

Lateral Pathway

Controls muscle tone in distal limb muscles and allows for precise movements.

Extrapyramidal System

A network that facilitates subconscious movement, including motor commands from the cerebrum, diencephalon, and brainstem.

Vestibulospinal Tracts

Part of the medial pathway, involved in maintaining posture and balance.

Tectospinal Tracts

Involved in reflexive responses to visual and auditory stimuli; part of the medial pathway.

Reticulospinal Tracts

Facilitates reflex activity; a component of the medial pathway.

Rubrospinal Tracts

Involved in the lateral pathway, facilitating unconscious involuntary movement.