NOUN
- a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tubelike structure extending from the base of the brain through the vertebral canal to the upper lumbar region
How To Use medulla spinalis In A Sentence
- It contains a double fold of pia mater, and its floor is formed by a transverse band of white substance, the anterior white commissure, which is perforated by bloodvessels on their way to or from the central part of the medulla spinalis. IX. Neurology. 3. The Spinal Cord or Medulla Spinalis
- The first to develop are the short intersegmental fibers from the neuroblasts in the mantle zone, and the fibers of the dorsal nerve roots which grow into the medulla spinalis from the cells of the spinal ganglia. IX. Neurology. 2. Development of the Nervous System
- The two pyramids contain the motor fibers which pass from the brain to the medulla oblongata and medulla spinalis, corticobulbar and corticospinal fibers. IX. Neurology. 4a. The Hind-brain or Rhombencephalon
- These are marked off from each other by intervening constrictions, and are named the fore-brain or prosencephalon, the mid-brain or mesencephalon, and the hind-brain or rhombencephalonthe last being continuous with the medulla spinalis. IX. Neurology. 2. Development of the Nervous System
- The nervous tissues are composed of nerve cells and their various processes, together with a supporting tissue called neuroglia, which, however, is found only in the brain and medulla spinalis. IX. Neurology. 1. Structure of the Nervous System
- From the appearance these nerves present at their attachment to the medulla spinalis and from their great length they are collectively termed the cauda equina (Fig. 662). IX. Neurology. 3. The Spinal Cord or Medulla Spinalis
- The portion of the medulla spinalis which lies in front of the posterolateral sulcus is termed the antero-lateral region. IX. Neurology. 3. The Spinal Cord or Medulla Spinalis
- The Posterior Root (radix posterior; dorsal root) is larger than the anterior owing to the greater size and number of its rootlets; these are attached along the posterolateral furrow of the medulla spinalis and unite to form two bundles which join the spinal ganglion. IX. Neurology. 6. The Spinal Nerves
- These are marked off from each other by intervening constrictions, and are named the fore-brain or prosencephalon, the mid-brain or mesencephalon, and the hind-brain or rhombencephalonthe last being continuous with the medulla spinalis. IX. Neurology. 2. Development of the Nervous System
- Nerve cells are largely aggregated in the gray substance of the brain and medulla spinalis, but smaller collections of these cells also form the swellings, called ganglia, seen on many nerves. IX. Neurology. 1. Structure of the Nervous System