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What is the diagonal band of Broca?

The diagonal band of Broca is one of the basal forebrain structures that are derived from the ventral telencephalon during development. This structure forms the medial margin of the anterior perforated substance. This brain region was described by the French neuroanatomist Paul Broca.

What is the diagonal band?

Anatomical Parts The diagonal band is aband of myelinated fibers that usually forms the posterior boundary of the anterior perforated substance. It extends from the amygdaloid body to the paraterminal gyrus.

What is the medial septum diagonal band?

The medial septal-diagonal band of Broca (MSDB) is an important modulator of hippocampal function. The MSDB influences the hippocampus through projections from cholinergic, GABAergic, and glutamatergic neurons (Amaral and Kurz, 1985; Freund, 1989; Manseau et al., 2005).

What is the basal forebrain?

The basal forebrain region is the site of a system of cholinergic neurons projecting to the entire cortical surface. The Basal Forebrain is a site of convergence of sleep and thermoregulatory functions. Portions of the basal forebrain play prominent roles in the control of the body temperature.

What does substantia Innominata do?

It is included as part of the anterior perforated substance (as it appears to be perforated by many holes which are actually blood vessels). It is part of the basal forebrain structures and includes the nucleus basalis….

Substantia innominata
TA2 5544
FMA 61885
Anatomical terms of neuroanatomy

What is the nucleus basalis of meynert?

The nucleus basalis of Meynert (NBM) is a large source of cholinergic innervation to widespread cortical areas. This is an area that degenerates in AD and other neurodegenerative illnesses (Whitehouse et al., 1982; Schliebs and Arendt, 2011).

What is the role of the medial septum?

The Role of the Medial Septum—Associated Networks in Controlling Locomotion and Motivation to Move. The Medial Septum and diagonal Band of Broca (MSDB) was initially studied for its role in locomotion. However, the last several decades were focussed on its intriguing function in theta rhythm generation.

Where is the medial septal nucleus?

The triangular and medial septal nuclei are in the midline. The anterior medial septal nucleus blends in with the vertical limb of the diagonal band of Broca just lateral to the midline. A large lateral septal nucleus, situated on either side of the midline nuclei, extends throughout the entire anteroposterior extent.

Is basal forebrain in frontal lobe?

The basal forebrain structures are located in the forebrain to the front of and below the striatum….

Basal forebrain
NeuroLex ID birnlex_1560
TA98 A14.1.09.401
TA2 5536
FMA 77700

What is Innominata?

adj. having no name; nameless; anonymous. [1630–40; < Late Latin innōminātus unnamed.

Is substantia Innominata part of basal ganglia?

Comparative neuroanatomical investigations in primates and non-primates have helped disentangle the anatomy of the basal forebrain region known as the substantia innominata. In most mammals, the extended amygdala presents itself as a ring of neurons encircling the internal capsule and basal ganglia.