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Pyramidal pathway
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Pyramidal pathway A collection of nerve tracts that travel from the cerebral cortex through the pyramid of the medulla oblongata in the brainstem to the spinal cord. Within the pyramid of the medulla, fibers cross from one side of the brain to the opposite side of the spinal cord; the pyramidal pathway is intact in Parkinson's disease.
RELATED TERMS--------------------------------------
Nerve
Tissue that conveys sensation, temperature, position information to the brain.
Cerebral
Referring to the cerebrum.
Cortex
The outer layer of the cerebrum, densely packed with nerve cells.
Medulla
The inner part of an organ. The adrenal medulla is the center of the adrenal gland where epinephrine (adrenaline) is produced.
Brainstem
The lowest part of the brain which merges with the spinal cord and provides the major route by which the upper realms of the brain send information to, and receives information from, the spinal cord and peripheral nerves. The brainstem consists of the medulla oblongata, midbrain, and pons. All but two of the 12 cranial nerves originate in the brainstem. The brainstem influences basic processes such as alertness, breathing, blood pressure, and heart rate.
Cord
1. In anatomy, a long ropelike structure. 2. Short for the spinal cord or the umbilical cord.
Brain
"That part of the central nervous system that is located within the cranium (skull). The brain functions as the primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called ""hemispheres."" "
SIMILAR TERMS--------------------------------------
Pyrazinamide
Pyrazinamide is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): pyrazinamide.
PREVIOUS AND NEXT TERMS--------------------------------------
Prostate
A male sex gland that produces a thick fluid which forms part of semen.
Pallidotomy
A surgical procedure in which a part of the brain called the globus pallidus is lesioned in order to improve symptoms of tremor, rigidity, and bradykinesia.
Parkinsonism
The name given to a group of disorders with similar features; four primary symptoms (tremor, rigidity, postural instability, and bradykinesia) that are the result of the loss of dopamine-producing brain cells.
Palsy
Paralysis of a muscle or group of muscles
Peristalsis
Wavelike contractions that move food through the digestive tract.
Pyramidal pathway
Palate
Hard and soft tissue forming the roof of the mouth.
Palliative treatment
Non invasive relief of irritating conditions.
Parasthesia
A partial loss of sensation; may be temporary or permanent.
Partial denture
Removable dental prosthesis (appliance) replacing one or more natural teeth.
Pathology
Study of disease.
RELATED TERMS--------------------------------------
Nerve
Tissue that conveys sensation, temperature, position information to the brain.
Cerebral
Referring to the cerebrum.
Cortex
The outer layer of the cerebrum, densely packed with nerve cells.
Medulla
The inner part of an organ. The adrenal medulla is the center of the adrenal gland where epinephrine (adrenaline) is produced.
Brainstem
The lowest part of the brain which merges with the spinal cord and provides the major route by which the upper realms of the brain send information to, and receives information from, the spinal cord and peripheral nerves. The brainstem consists of the medulla oblongata, midbrain, and pons. All but two of the 12 cranial nerves originate in the brainstem. The brainstem influences basic processes such as alertness, breathing, blood pressure, and heart rate.
Cord
1. In anatomy, a long ropelike structure. 2. Short for the spinal cord or the umbilical cord.
Brain
"That part of the central nervous system that is located within the cranium (skull). The brain functions as the primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called ""hemispheres."" "
SIMILAR TERMS--------------------------------------
Pyrazinamide
Pyrazinamide is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): pyrazinamide.
PREVIOUS AND NEXT TERMS--------------------------------------
Prostate
A male sex gland that produces a thick fluid which forms part of semen.
Pallidotomy
A surgical procedure in which a part of the brain called the globus pallidus is lesioned in order to improve symptoms of tremor, rigidity, and bradykinesia.
Parkinsonism
The name given to a group of disorders with similar features; four primary symptoms (tremor, rigidity, postural instability, and bradykinesia) that are the result of the loss of dopamine-producing brain cells.
Palsy
Paralysis of a muscle or group of muscles
Peristalsis
Wavelike contractions that move food through the digestive tract.
Pyramidal pathway
Palate
Hard and soft tissue forming the roof of the mouth.
Palliative treatment
Non invasive relief of irritating conditions.
Parasthesia
A partial loss of sensation; may be temporary or permanent.
Partial denture
Removable dental prosthesis (appliance) replacing one or more natural teeth.
Pathology
Study of disease.
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This dictionary contains 19186 terms.
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