(2) Ascending Tracts - ppLemniscal.pptx

To create an effective description for an ascending track, consider the following points:

### Title:
- **Ascending Track** (or a catchy name related to the theme)

### Description:
- **Overview:** Provide a brief overview of the track, focusing on its key features and ambiance.
- Example: “This ascending track takes listeners on a gradual journey from a soft, serene beginning to an exhilarating climax, designed to evoke feelings of motivation and upliftment.”

- **Musical Elements:** Mention the instruments used, the genre, and any notable techniques.
- Example: “Featuring lush strings, rhythmic percussion, and uplifting melodies, this orchestral piece blends classical and contemporary styles to create an inspiring soundscape.”

- **Emotional Journey:** Describe the intended emotional impact on the listener.
- Example: “As the track builds, it captures the essence of perseverance and triumph, inviting listeners to envision their aspirations and dreams.”

- **Intended Use:** Suggest where the track might be suitable, such as in films, presentations, or personal projects.
- Example: “Perfect for motivational videos, film scores, or personal playlists that inspire growth and determination.”

- **Conclusion:** A call to action or final thoughts.
- Example: “Let this ascending track propel you toward your goals and aspirations, igniting the fire within.”

### Keywords (for SEO):
- Ascending track, uplifting music, motivational, orchestral, inspiring soundtrack, cinematic music.

### Example Description:
“**Ascending Track** - This inspiring orchestral piece takes you on a transformative journey, starting with delicate strings and a gentle rhythm, gradually building to an exhilarating crescendo. Perfect for motivational videos, film scores, or personal playlists, this track embodies perseverance and triumph, igniting the fire within. Let the uplifting melodies propel you toward your goals and aspirations.”

Feel free to modify this template based on your track's unique qualities!

1. Neu r o- P h y siolo g y Ascending Tracts

2. Cross Section Of Spinal Cord

3. Cross Section Of Spinal Cord Anterior Horn/ Ventral Root Posterior Horn/ Dorsal Root Gray Matter White Matter (sensory information from the somatic segments of the body enters the spinal cord through the dorsal roots of the spinal nerves).

4. Ascending Tracts Sensory Pathways for Transmitting Somatic Signals into the Central Nervous System From the entry point into the cord and then to the brain, the sensory signals are carried through one of two alternative sensory pathways: the dorsal column–medial lemniscal system the anterolateral system

5. D orsal column–Medial lemniscal system Carries signals upward to the medulla of the brain mainly in the dorsal columns of the cord. Then, after the signals synapse and cross to the opposite side in the medulla They continue upward through the brain stem to the thalamus by way of the medial lemniscus. Large, myelinated nerve fibers that transmit signals to the brain at velocities of 30 to 110 m/sec high degree of spatial orientation of the nerve fibers with respect to their origin

6. Dorsal Column–Medial Lemniscal System Touch sensations requiring a high degree of localization of the stimulus Touch sensations requiring transmission of fine gradations of intensity Phasic sensations, such as vibratory sensations Sensations that signal movement against the skin Position sensations from the joints Pressure sensations related to fine degrees of judgment of pressure intensity

7. Transmission in the Dorsal Column–Medial Lemniscal System On entering the spinal cord divide almost immediately Form a medial branch and a lateral branch, The medial branch turns medially first and then upward in the dorsal column, proceeding by way of the dorsal column pathway all the way to the brain. The lateral branch enters the dorsal horn of the cord gray matter, then divides many times to provide terminals that synapse with local neurons in the intermediate and anterior portions of the cord gray matter. These local neurons in turn serve three functions: III. A major share of them give off fibers that enter the dorsal columns ofthe cord and then travel upward to the brain. Many of the fibers are very short and terminate locally in the spinal cord gray matter to elicit local spinal cord reflexes Others give rise to the spinocerebellar tracts

8. The Dorsal Column–Medial Lemniscal Pathway. First Order Neurons - Nerve fibers entering the dorsal columns pass uninterrupted up to the dorsal medulla, where they synapse in the dorsal column nuclei (the cuneate and gracile nuclei). Second-order neurons - decussate immediately to the opposite side of the brain stem and continue upward through the medial lemnisci to the thalamus. In the thalamus, the medial lemniscal fibers terminate in the thalamic sensory relay area, called the ventrobasal complex In this pathway through the brain stem, each medial lemniscus is joined by additional fibers from the sensory nuclei of the trigeminal nerve ; these fibers subserve the same sensory functions for the head that the dorsal column fibers subserve for the body. Third Order Neurons - From the ventrobasal complex, third-order nerve fibers project, mainly to the postcentral gyrus of the cerebral cortex, which is called somatic sensory area I

9. Spatial Orientation of the Nerve Fibers in the Dorsal Column-Medial Lemniscal System In the dorsal columns of the spinal cord, the fibers from the lower parts of the body lie toward the center of the cord, whereas those that enter the cord at progressively higher segmental levels form successive layers laterally. In the thalamus , distinct spatial orientation is still maintained, with the tail end of the body represented by the most lateral portions of the ventrobasal complex and the head and face represented by the medial areas of the complex. Because of the crossing of the medial lemnisci in the medulla , the left side of the body is represented in the right side of the thalamus, and the right side of the body in the left side of the thalamus.

10. Basic Neuronal Circuit in the Dorsal Column– Medial Lemniscal System. At each synaptic stage, divergence occurs. The cortical neurons that discharge to the greatest extent are those in a central part of the cortical “field” for each respective receptor. Thus, a weak stimulus causes only the central most neurons to fire. A stronger stimulus causes still more neurons to fire, but those in the center discharge at a considerably more rapid rate than do those farther away from the center.