myelencephalon‚ or medulla‚ is responsible for reticular formation. Reticular formation is comprised of a complex network of white and grey matter which aids the smooth transition between descending and ascending signals of the central nervous system (Pinel‚ 2007). Reticular formation is believed to play a role in arousal but is also important to various other functions of the body including sleep‚ body movement‚ and muscle tone. In addition‚ reticular formation also plays a role in cardiac‚ circulatory
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perspective is the reticular formation. It is a complex network of about 100 tiny nuclei that occupies the central core of the brain stem from the posterior boundary of the myelencephalon to the anterior boundary of the midbrain. It is so named because of its netlike appearance (reticulum means "little net"). Sometimes the reticular formation is referred to as the reticular activating system because parts of it seem to play a role in arousal. The various nuclei of the reticular formation are involved in
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If each of the following brain parts individually was damaged‚ what would be the consequence and why? Hippocampus‚ hypothalamus‚ cerebellum‚ reticular formation‚ medulla Hippocampus is important for forming lasting memories. The hippocampus lies inside the temporal lobes‚ which is why stimulating the temporal lobes can produce memory like or dream like experiences. Hippocampus damage can result in anterograde amnesia which is the loss of ability to form new memories. Someone who sustains an
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where the reticular formation is located. The reticular formation is composed of a “…complex network of about 100 tiny nuclei…” (Pinel‚ 2011. p. 64). Furthermore‚ the reticular formation has many functions that include sleep‚ movement‚ attention‚ the maintenance of muscle tone‚ and a number of cardiac‚ circulatory‚ and respiratory reflexes. Next‚ the metencephalon is similar to the myelencephalon‚ where it “…houses many ascending and descending tracts and part of the reticular formation” (Pinel
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THE HUMAN NERVOUS SYSTEM OVERVIEW 1. The human nervous system a. Central Nervous System (CNS) __________________________________________________________________________________________________________________________________ b. Peripheral Nervous System (PNS) __________________________________________________________________________________________________________________________________ 2. Brain Structures and their Function ________________________________________
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a second practice later in the day. As a swimmer‚ there are several thoughts which swirl around in my head during practices; however‚ intriguing are those that occur during running. The majority of the thoughts arise in the amygdala and the reticular formation and are stimulated through internal fears‚ physical suffering‚ and
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components of the reticular formation inside the brainstem; the reticular formation is a core of nerve cells forming a network in the midbrain‚ pons‚ and medulla oblongata There are three sections in the main component of the reticular formation inside the brainstem the parvocellular‚ the magnocellular and the raphe nuclei parts (Ashwell‚ 48). The semiautomatic motor function is breathing‚ and the motor routines running‚ walking‚ and swimming are controlled by the reticular formation.
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also responsible for reticular formation‚ which is comprised of tiny nuclei in the central core of the brain stem. Reticular formation plays a role in somatic motor control‚ cardiovascular control‚ pain modulation‚ sleep‚ consciousness‚ and habituation. Due to the complexity of the myelencephalon an injury to this part of the brain would be life threatening or devastating. The metencephalon is also located in the hindbrain. This plays a role in reticular formation. The metencephalon is
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control the optic nerves. The Mesencephalon had two divisions the tectum and tegmentum. The tectum has two pairs of bumps‚ the colliculi. The inferior colliculi have auditory function and the superior colliculi have visual function. The tegmentum is reticular formed with tracts of passages and contains three colorful structures that biopsychologists use; grey‚ black‚ and red. These colorful sections contribute too many functions: sleep‚ attention‚ and movement‚ maintenance of muscle tone‚ cardiac‚ circulatory
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functions • Common (mesenchyme) origin • Degrees of vascularity Functions • Binding • Suport • Protection • Insulation • Transport Structural Elements • Fibers ⁃ Collagen (white) fibres ⁃ Elastin (yellow) fibers ⁃ Reticular fibers • Ground substance ⁃ Amorphous material fills space between cells and contains fibers ⁃ Holds fluids ⁃ Acts as molecular sieve ⁃ Consists of interstitial fluid‚ cell adhesion proteins "glue"‚ proteoglycans • Cells ⁃ Each class
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