Medulla Cross Section

Draw another pair of circles anteriorly.
Medulla cross section. In the medial part of the medulla is the anterior median fissure. Appearance from the front. The anterior spinal.
August 31 2020 in continuing the discussion on the medulla oblongata this article will focus on the nuclei and tracts that are found within it at different cross sectional levels. Represents inferior cerebellar peduncle. Medulla oblongata the lowest part of the brain and the lowest portion of the brainstem.
The appearance of a cadaveric brainstem from the front with major parts labelled. Despite this it may suffice the reader to know that the vessels that supply the medulla include. The same nuclear columns as in a are found in its floor ventrally to the hypoglossal nucleus ab3 appears roller s nucleus b24 and dorsally the intercalate nucleus staderini snucleus b25.
Moving laterally on each side are the medullary pyramids. Draw a pair of circles. Cross section at the level of the vagus nerve.
The vasculature of the medulla is complex and is dependent on the level being viewed fig. Neurons in the different regions of the medulla oblongata transmit motor and sensory impulses and carry out complex integrative functions helping regulate processes such as respiration heart rate and digestion. The fourth ventricle has become wider.
The fiber connections ofthese two nuclei are not known in the lateral field the nuclei of the posterior. Draw a pair of triangles anterior to the 2 anterior circles. The medulla oblongata or simply medulla is a long stem like structure which makes up part of the brainstem it is anterior and partially inferior to the cerebellum it is a cone shaped neuronal mass responsible for autonomic involuntary functions ranging from vomiting to sneezing the medulla contains the cardiac respiratory vomiting and vasomotor centers and therefore deals with the.