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Plants and Pollinators
Plants and Pollinators

... information about past sensory input • Stored in stages – Temporary storage in cerebral cortex ...
L11Nervous tissue strusture 11
L11Nervous tissue strusture 11

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The Nervous System - Plain Local Schools
The Nervous System - Plain Local Schools

... Nervous tissue • The functional cells of nervous tissue are called neurons, which receive support from nearby neuroglial cells (connective part) • Each neuron consists of a cell body and branches. The cell body contains the nucleus and most of the cytoplasm, and the branches include many dendrites ...
So it is the number of action potentials per second
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... concentration outside the cell than inside so sodium moves into the cell. 6. This also would eventually end up at equilibrium such that the concentration gradient for sodium would also disappear. ...
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Biology and Behavior note frame
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Nervous System Organization and Components
Nervous System Organization and Components

... are two systems that serve as means of internal communication within the organism. The nervous system acts rapidly, for a short duration and endocrine system acts slowly, for a long duration. Both systems integrate and coordinate activities to assure proper body function. These systems allow for com ...
Unit B6 Key Words
Unit B6 Key Words

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B) Central Nervous System NTG spring 2010

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Bio_257_Unit_3_17

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No Slide Title

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Autonomic Nervous System ANS - Anderson School District One
Autonomic Nervous System ANS - Anderson School District One

... • Cholinergic neurons include: 1. all Sympathetic & Parasympathetic preganglionic neurons 2. Sympathetic postganglionic neurons that innervate most sweat glands 3. all Parasympathetic postganglionic neurons ...
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Hypothalamus - aHuman Project

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Worksheet - Nervous System I Lecture Notes Page

... on simply counting the total number of processes that arise directly from the cell body (sum of dendrites and axon). A neuron with just one attached process is called ______________________________; a neuron with two attached processes is called __________________________, and a neuron with more tha ...
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The Cerebellum

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Unit 6 Nervous System
Unit 6 Nervous System

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STUDY GUIDE 8

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You submitted this quiz on Tue 6 May 2014 6:55 PM CDT. You got a

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The Brain
The Brain

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BIOLOGY 12: U NIT M/N - C A. CHAPTER REVIEW 1. What are the
BIOLOGY 12: U NIT M/N - C A. CHAPTER REVIEW 1. What are the

... 1. The peripheral nervous system may be divided into the _____________ and _______________ divisions. 2. A motor neuron has a ________ (long/short) axon and __________ (long/short) dendrites. 3. During depolarization of the nerve impulse, the _____________ ions move to the INSIDE of the neuron. 4. T ...
Anatomy and physiology CP - Morgan Hill Unified School District
Anatomy and physiology CP - Morgan Hill Unified School District

... The cerebrum interprets sensation, controls motor activities, and serves as the center of intellect, reason, memory, and consciousness. • The spinal cord controls many reflex actions and transmits information between peripheral nerves and the brain. • The somatic system is the portion of the periphe ...
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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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