|
Anterior Funiculus
In the spinal cord, the most lateral of the bundles of the ventral root of spinal nerve, ventral nerve roots is generally taken as a dividing line that separates the antero-lateral region into two parts: an anterior funiculus (or anterior column), between the Anterior median fissure of the spinal cord, anterior median fissure and the most lateral of the ventral nerve roots; and a lateral funiculus, between the exit of these roots and the posterolateral sulcus of spinal cord, posterolateral sulcus. See also * Funiculus (neuroanatomy) * Lateral funiculus * Posterior funiculus References Central nervous system {{Neuroanatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ventral Root Of Spinal Nerve
In anatomy and neurology, the ventral root of spinal nerve, anterior root, or motor root is the efferent motor root of a spinal nerve A spinal nerve is a mixed nerve, which carries Motor neuron, motor, Sensory neuron, sensory, and Autonomic nervous system, autonomic signals between the spinal cord and the body. In the human body there are 31 pairs of spinal nerves, one on each s .... At its distal end, the ventral root joins with the dorsal root to form a mixed spinal nerve. Additional images Image:Cervical vertebra english.png, Cervical vertebra Image:Medulla spinalis - Section - English.svg, Medulla spinalis Image:Gray675.png, A spinal nerve with its anterior and posterior. Image:Gray764.png, The motor tract. Image:Gray770-en.svg, Diagrammatic transverse section of the medulla spinalis and its membranes. Image:Gray796.png, A portion of the spinal cord, showing its right lateral surface. The dura is opened and arranged to show the nerve roots. Image:Gray799.svg, S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antero-lateral Region
{{disambig ...
Anterolateral may refer to: * Anterolateral central arteries * Anterolateral ligament * Anterolateral ganglionic branches * Anterolateral sulcus of medulla * Anterolateral sulcus of spinal cord * Anterolateral system The spinal cord is a long, thin, tubular structure made up of nervous tissue that extends from the medulla oblongata in the lower brainstem to the lumbar region of the vertebral column (backbone) of vertebrate animals. The center of the spinal c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anterior Median Fissure Of The Spinal Cord
The anterior median fissure of the spinal cord is a deep midline groove of the anterior spinal cord. It divides the white matter of the anterior spinal cord nearly in two. The spinal pia mater extends into the fissure to line the surfaces of the spinal cord. Anatomy It has an average depth of about 3 mm, but this is increased in the lower part of the spinal cord. It contains a double fold of pia mater. Its floor is formed by a transverse band of white matter - the anterior white commissure The anterior white commissure (ventral white commissure) is a bundle of nerve fibers which cross the midline of the spinal cord just anterior (in front of) to the gray commissure ( Rexed lamina X). A delta fibers (Aδ fibers) and C fibers carr ... - which is perforated by blood vessels on their way to or from the central part of the spinal cord. Relations The anterior median fissure provides a groove in which the anterior spinal artery sits. Clinical significance Imaging The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lateral Funiculus
The most lateral of the bundles of the anterior nerve roots is generally taken as a dividing line that separates the anterolateral system into two parts. These are the anterior funiculus, between the anterior median fissure and the most lateral of the anterior nerve roots, and the lateral funiculus between the exit of these roots and the posterolateral sulcus. The lateral funiculus transmits the contralateral corticospinal and spinothalamic tracts. A lateral cutting of the spinal cord results in the transection of both ipsilateral posterior column and lateral funiculus and this produces Brown-Séquard syndrome.Kaplan Qbook - USMLE Step 1 - 5th edition - page See also * Funiculus (neuroanatomy) * Anterior funiculus * Posterior funiculus References Central nervous system {{Neuroanatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Posterolateral Sulcus Of Spinal Cord
Standard anatomical terms of location are used to describe unambiguously the anatomy of humans and other animals. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position provides a definition of what is at the front ("anterior"), behind ("posterior") and so on. As part of defining and describing terms, the body is described through the use of anatomical planes and axes. The meaning of terms that are used can change depending on whether a vertebrate is a biped or a quadruped, due to the difference in the neuraxis, or if an invertebrate is a non-bilaterian. A non-bilaterian has no anterior or posterior surface for example but can still have a descriptor used such as proximal or distal in relation to a body part that is nearest to, or furthest from its middle. International organisations have determined vocabularies that are often used as standards for subdisciplines of anatomy. For example, ''Terminologia Anato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Funiculus (neuroanatomy)
A funiculus is a small bundle of axons (nerve fibres), enclosed by the perineurium. A small nerve may consist of a single funiculus, but a larger nerve will have several funiculi collected together into larger bundles known as fascicles. Fascicles are bound together in a common membrane, the epineurium. Funiculi in the spinal cord are columns of white matter. Examples include: * Anterior funiculus of the spinal cord * Lateral funiculus The most lateral of the bundles of the anterior nerve roots is generally taken as a dividing line that separates the anterolateral system into two parts. These are the anterior funiculus, between the anterior median fissure and the most lateral ... of the spinal cord * Posterior funiculus of the spinal cord See also * Funiculus separans References Neuroanatomy {{Neuroanatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lateral Funiculus
The most lateral of the bundles of the anterior nerve roots is generally taken as a dividing line that separates the anterolateral system into two parts. These are the anterior funiculus, between the anterior median fissure and the most lateral of the anterior nerve roots, and the lateral funiculus between the exit of these roots and the posterolateral sulcus. The lateral funiculus transmits the contralateral corticospinal and spinothalamic tracts. A lateral cutting of the spinal cord results in the transection of both ipsilateral posterior column and lateral funiculus and this produces Brown-Séquard syndrome.Kaplan Qbook - USMLE Step 1 - 5th edition - page See also * Funiculus (neuroanatomy) * Anterior funiculus * Posterior funiculus References Central nervous system {{Neuroanatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Posterior Funiculus
Posterior may refer to: * Posterior (anatomy), the end of an organism opposite to anterior ** Buttocks, as a euphemism * Posterior horn (other) * Posterior probability The posterior probability is a type of conditional probability that results from updating the prior probability with information summarized by the likelihood via an application of Bayes' rule. From an epistemological perspective, the posteri ..., the conditional probability that is assigned when the relevant evidence is taken into account * Posterior tense, a relative future tense {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
