Medulla oblongata, simplified sections of internal structure
179.6 هزار بار بازدید -
11 سال پیش
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This video is part of
This video is part of a playlist of videos on the internal structure of the brain stem. The playlist uses simplified sketches that are gradually drawn for the purpose of description.
Internal structure at the following section levels is described:
Level of the inferior olivary nucleus (open medulla)
Level of medial lemniscal decussation (closed medulla)
Level of the decussation of pyramids (closed medulla)
Spinal cord
For each fiber tract the location, function, origin and destination are summarized. Each nucleus is identified in terms of location, function and connections. Thus the session correlates anatomical structures seen in the medulla with those of the pons, midbrain and spinal cord. For this purpose, a section of the spinal cord has also been added.
00:00 Introduction
01:00 The pyramids – corticospinal fibers
03:50 Arcuate nucleus
04:20 Olive and inferior olivary complex
05:05 Cerebellar peduncles
06:09 Cranial nerves emerging from the medulla oblongata
06:39 Fasiculus and nucleus gracilis and cuneatus
09:17 Decussation of the medial lemniscus
10:14 Spinal nucleus and tract of the trigeminal nerve
11:24 Anterior and posterior spinocerebellar fibers
13:43 Spinothalamic fibers
15:31 Spinotectal tract
15:52 Vestibulocochlear nuclei
17:21 Nucleus ambiguus
18:02 Reticular formation
18:21 Hypoglossal nucleus
18:46 Dorsal nucleus of the vagus nerve
19:17 Nucleus of the tractus solitarius
20:14 Medial longitudinal fasciculus
20:43 Tectospinal tract
21:17 Extrapyramidal fibers
21:43 Lateral medullary syndrome
22:58 Medial medullary syndrome
After completion of this video session, it is expected that you will be able to
Develop a three-dimensional picture of the gross anatomy of the medulla oblongata and its internal structure.
Locate the positions of cranial nerve nuclei and the paths taken by the major ascending and descending nerve tracts
Assess the signs and symptoms presented by the patient and identify the exact location of a lesion affecting the brain stem.
Correlate the signs and symptoms of medial and lateral medullary (Wallenberg) syndromes with the nuclei and nerve tracts involved by the vascular lesions.
Presented and edited by Dr. Akram Jaffar, Ph.D.
Related videos:
Pons, simplified sections of internal structure Pons, simplified sections of internal...
Midbrain, simplified sections of internal structure Midbrain, simplified sections of inte...
Related accounts
Twitter Twitter: AkramJaffar
Facebook Facebook: AnatomyEducation
SlideShare http://www.slideshare.net/AkramJaffar
LinkedIn LinkedIn: akram-abo..
Research gate https://www.researchgate.net/profile/...
Medtube https://medtube.net/users/akram-jaffar
Instagram Instagram: akramjaffar
Academia https://dal.academia.edu/AkramJaffar
Internal structure at the following section levels is described:
Level of the inferior olivary nucleus (open medulla)
Level of medial lemniscal decussation (closed medulla)
Level of the decussation of pyramids (closed medulla)
Spinal cord
For each fiber tract the location, function, origin and destination are summarized. Each nucleus is identified in terms of location, function and connections. Thus the session correlates anatomical structures seen in the medulla with those of the pons, midbrain and spinal cord. For this purpose, a section of the spinal cord has also been added.
00:00 Introduction
01:00 The pyramids – corticospinal fibers
03:50 Arcuate nucleus
04:20 Olive and inferior olivary complex
05:05 Cerebellar peduncles
06:09 Cranial nerves emerging from the medulla oblongata
06:39 Fasiculus and nucleus gracilis and cuneatus
09:17 Decussation of the medial lemniscus
10:14 Spinal nucleus and tract of the trigeminal nerve
11:24 Anterior and posterior spinocerebellar fibers
13:43 Spinothalamic fibers
15:31 Spinotectal tract
15:52 Vestibulocochlear nuclei
17:21 Nucleus ambiguus
18:02 Reticular formation
18:21 Hypoglossal nucleus
18:46 Dorsal nucleus of the vagus nerve
19:17 Nucleus of the tractus solitarius
20:14 Medial longitudinal fasciculus
20:43 Tectospinal tract
21:17 Extrapyramidal fibers
21:43 Lateral medullary syndrome
22:58 Medial medullary syndrome
After completion of this video session, it is expected that you will be able to
Develop a three-dimensional picture of the gross anatomy of the medulla oblongata and its internal structure.
Locate the positions of cranial nerve nuclei and the paths taken by the major ascending and descending nerve tracts
Assess the signs and symptoms presented by the patient and identify the exact location of a lesion affecting the brain stem.
Correlate the signs and symptoms of medial and lateral medullary (Wallenberg) syndromes with the nuclei and nerve tracts involved by the vascular lesions.
Presented and edited by Dr. Akram Jaffar, Ph.D.
Related videos:
Pons, simplified sections of internal structure Pons, simplified sections of internal...
Midbrain, simplified sections of internal structure Midbrain, simplified sections of inte...
Related accounts
Twitter Twitter: AkramJaffar
Facebook Facebook: AnatomyEducation
SlideShare http://www.slideshare.net/AkramJaffar
LinkedIn LinkedIn: akram-abo..
Research gate https://www.researchgate.net/profile/...
Medtube https://medtube.net/users/akram-jaffar
Instagram Instagram: akramjaffar
Academia https://dal.academia.edu/AkramJaffar
11 سال پیش
در تاریخ 1392/08/13 منتشر شده
است.
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