Neuro Wordwall

Posterior Cerebral Artery (PCA)

Supply much of the occipital lobe, and my occlusion may result in hemianopsia

Corticospinal Tract

Carries motor information toward spinal nerves, and most of my fibers cross at the medullospinal junction

Corticobulbar Tract

Synapses with the cell bodies of cranial nerves in the brainstem

Pia Mater

Gentle mother who closely hugs the brain, following its surface and extending into the sulci

Extrapyramidal Pathway

Pathways influence the LMN indirectly and area generally responsible for regulating muscle tone

Pyramidal Pathway

Directly connect the CNS motor system toward the LMN and am generally responsible for muscle strength

Anterior Cerebral Artery (ACA)

Supply the medial brain and the portion of the motor strip associated with the legs and feet

Amygdala

Almond-shaped limbic structure heavily involved in fear, aggression, and responses to environmental danger

Arachnoid Mater

Middle meningeal layer; bleeding in the space below me is associated with a particular type of hemorrhage

Upper Motor Neuron (UMN) Medulla/Brainstem

Every part of me remains within te PNS. Damage to me may result in spasticity/hypertonia. Contains nuclei involved in phonation, VP closure, swallowing, and articulation

Cerebrospinal Fluid (CSF)

Cushions the brain, provides buoyancy, transports nutrients/hormones, and helps remove metabolic waste

Circle of Willis

Vascular defense system that can help provide alternate blood flow when the usual route is blocked

Dura Mater

Outermost meningeal layer, “hard mother”

Middle Cerebral Artery (MCA)

Supplies the speech and language areas and am the cerebral artery most likely to become blocked

Lower Motor Neuron (LMN)

Part exists within CNS, and I’m the final route through which motor stimulation actually reaches the target muscle