Descending tracts are the pathways by which motor
signals are pass through from the brain to lower motor neurones. Thus, all
the neurones within the descending motor system are classed as upper motor
neurones. The lower motor neurones then directly innervate muscles to produce
movement. Their cell bodies are found in the cerebral cortex or the brain stem,
with their axons remaining within the CNS.
Answer:
Heart valve problems
Explanation:
Marfan syndrome is a syndrome caused by a genetic defect in a gene that is important to define the structure of a protein called fibrin 1 which makes a part of connective tissue.
One of the main problems with people having this disorder is heart problems. Most of the people with Marfan syndrome have damaged aorta. Aorta plays an important role in carrying blood from the heart to other body parts. Therefore heart valve problem is the clinical finding that would be a treatment priority for this client.
Other symptoms associated with these disorders are tall aperture, long and disproportionate arm and leg, abnormal spine structure, etc.