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The Nervous System
The Nervous System

... - responsible for conscious/voluntary activities of the body - divided into 2 sections called ______________________, controlling the opposite side of the body - the _________ hemisphere may control creativity and artistic ability - the left hemisphere may control analytical and mathematical ability ...
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The Human Body in Health and Illness

... Tracts: bundles of nerve fibers within the CNS ...
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... • Qualitative information (taste or hearing) depends upon which neurons fire – labeled line code = brain knows what type of sensory information travels on each fiber ...
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... However, the parvocellular neurons release their secretory products into fenestrated capillaries that drain into the long portal vessels that drain into the anterior lobe. The magnocellular neurons secrete either vasopressin or oxytocin, and are largely concentrated in the supraoptic (SON) and parav ...
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Central nervous system

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Jackson Rancheria Casino Shooting
Jackson Rancheria Casino Shooting

... reflects its activity. Because of its complexity, the structures of the nervous system are described in terms of two principal divisions—the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS, consisting of the brain and spinal cord, interprets incoming sensory information ...
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... them often have no blatant developmental abnormalities – or at least, can survive. Note: autocrine, paracrine, afferants (anterograde transport). 3. BDNF, NT3, NT4, and their receptors are most widespread in the brain (NGF less so mostly periphery), particularly in the cortex and hippocampus. ...
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Unit IV-D Outline

... away from the cell body and send them either to other neurons or to effectors, range in length from less than a centimeter to more than one meter f. Schwann cells – produce layers of a white, fatty substance called myelin which covers the axon, gaps between neighboring cells are called nodes of Ranv ...
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Basic Anatomy and Terminology of the Head and Brain Scalp and

... complex has numerous roles, with involvement in endocrine (hormone) function, hunger, thirst, satiation, temperature regulation, sweating, water balance, short-term memory, sexual function and emotion. Basal Ganglia, Thalamus, and Hypothalamus ...
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Nolte Chapter 9 – Sensory Receptors and the Peripheral Nervous

... that increases the probability of its openings. These same channels have binding sites for various botanical molecules, leading to the warm and cool feelings of chili peppers and menthol. Nociceptors can detect stimuli that provide nxious levels of heat or cold or chemicals that are released by dama ...
IHB Endocrine Sys
IHB Endocrine Sys

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Circumventricular organs

Circumventricular organs (CVOs) are structures in the brain that are characterized by their extensive vasculature and lack of a normal blood brain barrier (BBB). The CVOs allow for the linkage between the central nervous system and peripheral blood flow; additionally they are an integral part of neuroendocrine function. The lack of a blood brain barrier allows the CVOs to act as an alternative route for peptides and hormones in the neural tissue to the peripheral blood stream, while still protecting it from toxic substances. CVOs can be classified into (a) sensory and (b) secretory organs. The sensory organs include the area postrema (AP), the subfornical organ (SFO) and the vascular organ of lamina terminalis. They have the ability to sense plasma molecules and then pass that information into other regions of the brain. Through this, they provide direct information to the autonomic nervous system from the systemic circulation. The secretory organs include the subcommissural organ (SCO), the posterior pituitary, the pineal gland, the median eminence and the intermediate lobe of the pituitary gland. These organs are responsible for secreting hormones and glycoproteins into the peripheral vascular system using feedback from both the brain environment and external stimuli.All of the circumventricular organs, besides the SCO, contain extensive vasculature and fenestrated capillaries which leads to a ‘leaky’ BBB at the site of the organs. Furthermore, all CVOs contain neural tissue, allowing them to play a role in the neuroendocrine system. It is highly debated if the choroid plexus can be included as a CVO. It has a high concentration of fenestrated capillaries, but its lack of neural tissue and its primary role of producing cerebrospinal fluid (CSF) usually excludes the choroid plexus from the CVO classification.Research has also linked CVOs to body fluid regulation, cardiovascular functions, immune responses, thirst, feeding behavior and reproductive behavior.
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