primary motor cortex in dogs

The part of the cerebral cortex that receives projections from the motor thalamus and which projects to motor neurons in the brainstem and spinal cord. The motor cortex corresponds to Brodmann's area 4 (MM). The primary motor cortex, or M1, is located on the precentral gyrus and on the anterior paracentral lobule on the medial surface of the brain. Of the three motor cortex areas, stimulation of the primary motor cortex requires the least amount of electrical current to elicit a movement. http://neuroscience.uth.tmc.edu/s3/chapter03.html. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the primary motor cortex is

The part of the cerebral cortex that receives projections from the motor thalamus and which projects to motor neurons in the brainstem and spinal cord. The motor cortex corresponds to Brodmann's area 4 (MM). The primary motor cortex, or M1, is located on the precentral gyrus and on the anterior paracentral lobule on the medial surface of the brain. Of the three motor cortex areas, stimulation of the primary motor cortex requires the least amount of electrical current to elicit a movement. http://neuroscience.uth.tmc.edu/s3/chapter03.html. The atlas records it as a nerve at the organ scale in the dog.

Where the primary motor cortex is

It sits within the nervous system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What the primary motor cortex connects to

The atlas records 9 typed relationships for it, across 3 kinds of connection. part of anatomical entity, brain and cerebral cortex, and 3 more.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the primary motor cortex. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as motor cortex, Rolando's area, excitable area, gyrus precentralis, motor area and prefrontal gyrus, and 3 more. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001384, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: anatomical entity, brain, cerebral cortex, frontal cortex, neocortex and nervous system.
• A kind of: anatomical structure.
• contributes to morphology of: cerebral cortex and frontal cortex.

Questions

Where is the primary motor cortex?

It sits within the nervous system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What does the primary motor cortex connect to?

Part of: anatomical entity, brain, cerebral cortex, frontal cortex, neocortex and nervous system.

Is the primary motor cortex the same in other species?

This page describes the dog. The human record of the same structure sits beside it on /compare, over one shared model rather than two atlases built separately.