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Ch14 notes Martini 9e
Ch14 notes Martini 9e

... • Blood–Brain Barrier (BBB) • Isolates CNS neural tissue from general circulation • Formed by network of tight junctions • Between endothelial cells of CNS capillaries • Lipid-soluble compounds (O2, CO2), steroids, and prostaglandins • Diffuse into interstitial fluid of brain and spinal cord • Astro ...
HOMEOSTASIS - The Open Door Web Site : Home Page
HOMEOSTASIS - The Open Door Web Site : Home Page

... Sensors to detect changes in the internal ...
HOMEOSTASIS PC Prof Mathew Mbabuu Sep 2016 Ppt
HOMEOSTASIS PC Prof Mathew Mbabuu Sep 2016 Ppt

... Sensors to detect changes in the internal ...
No Slide Title
No Slide Title

... explain how they relate to autonomic effects. – Explain how the ANS controls many target organs through dual innervation. – Explain how control is exerted in the absence of dual innervation. ...
9d. Know the functions of the nervous system and the role of
9d. Know the functions of the nervous system and the role of

... The __________________ ________________ controls and coordinates functions throughout the body and responds to internal and external stimuli. Neurons transmit electrochemical impulses throughout the body. Sensory neurons carry impulses from the sense organs to the spinal cord. Motor neurons carry im ...
Networks of Neurons (2001)
Networks of Neurons (2001)

... Excitatory and Inhibitory Synapses Dale's law states that each neuron releases a single transmitter substance. (A “first approximation”) ...
29.2 Neurons - Cloudfront.net
29.2 Neurons - Cloudfront.net

... emotion as well as simpler life processes such as swallowing ...
Properties of reflex action
Properties of reflex action

... It provides a coordinated ms contraction around the joints and reduces the resistance to movements. ...
Paying attention to correlated neural activity
Paying attention to correlated neural activity

... © 2008 Nature Publishing Group http://www.nature.com/natureneuroscience ...
ch14_lecture - Napa Valley College
ch14_lecture - Napa Valley College

... • Caused by bacterial or viral invasion of the CNS by way of the nose and throat • Pia mater and arachnoid are most often affected • Meningitis can cause swelling of the brain, enlargment of the ventricles, and hemorrhage • Signs include high fever, stiff neck, drowsiness, and intense headache; may ...
Chapter 14 Lecture Outline
Chapter 14 Lecture Outline

... • Caused by bacterial or viral invasion of the CNS by way of the nose and throat • Pia mater and arachnoid are most often affected • Meningitis can cause swelling of the brain, enlargment of the ventricles, and hemorrhage • Signs include high fever, stiff neck, drowsiness, and intense headache; may ...
The Nervous System
The Nervous System

... • Grey matter – closely packed neuron cell bodies (making up the cerebral cortex) form the grey matter of the brain. The grey matter includes regions of the brain involved in muscle control, sensory perceptions, such as seeing and hearing, memory, emotions and speech. • White matter – neuronal tiss ...
Nervous system Lab - Sonoma Valley High School
Nervous system Lab - Sonoma Valley High School

... twice as many neurons as you have now. The die-off of neurons occurs early in life, and with more room, the remaining neurons make many connections with other existing neurons. The degree of interconnectedness apparently determines our intelligence and memory. It is estimated that the human brain co ...
Journal Paper 1 - Information Services and Technology
Journal Paper 1 - Information Services and Technology

... Berkeley. She found nothing unusual about the number or size of its neurons (nerve cells). But in the association cortex, responsible for highlevel cognition, she did discover a surprisingly large number of nonneuronal cells known as glia—a much greater concentration than that found in the average A ...
Slide 1
Slide 1

... •  At the highest level of organization, the nervous system is divided into the central nervous system and the peripheral nervous system. The function of the central nervous system is to process incoming information, and send commands to the rest of the body. Unlike the peripheral nervous system, th ...
Chapter 2: The Brain and Behavior
Chapter 2: The Brain and Behavior

... Lies inside medulla and brainstem – Associated with alertness, attention and some reflexes (breathing, coughing, sneezing, vomiting) Reticular Activating System (RAS): Part of RF that keeps the cortex active and alert  Its alarm clock ...
Biological Rhythms
Biological Rhythms

... and passed on to retinal ganglion cells, which also contain a light sensitive pigment. These cells release (NT) acetylcholine and have several effects. They activate the neurones that cause dreaming and some also connect to the SCN. Blind Rats lose their cyclical behaviour. They sleep the same amoun ...
L7- Brainstem Studen..
L7- Brainstem Studen..

... the cerebrum with spinal cord. • The pons, and motor and sensory nerves travel through the brainstem allowing for the relay of signals between the brain and spinal cord. ...
Nerve Muscle Physiology
Nerve Muscle Physiology

... • Consists of nerve cell body with all its processes axon and dendrites • All neurons contain one and only one axon • But dendrites may be absent one or many • Axon carries impulses from the soma towards a centrifugal directions (away from soma) • Dendrites brings impulse from distance centripetally ...
Nerve Muscle Physiology
Nerve Muscle Physiology

... • Consists of nerve cell body with all its processes axon and dendrites • All neurons contain one and only one axon • But dendrites may be absent one or many • Axon carries impulses from the soma towards a centrifugal directions (away from soma) • Dendrites brings impulse from distance centripetally ...
The nervous system is a complex collection of nerves and
The nervous system is a complex collection of nerves and

... and emergencies. While the parasympathetic system lowers activity, operates during normal situations, permits digestion, and conservation of energy. The two systems generally act in opposition to each other. For example, a stimulation by the sympathetic system on the heart would increase contraction ...
Clicker Quiz_Neuron_CNS_PNS_Sensory
Clicker Quiz_Neuron_CNS_PNS_Sensory

... Which of the following is the function of the pigmented layer of the eye? A. Reflects light after hitting the retina B. Absorbs light after hitting the retina C. Assists the lens in rounding up to see ...
Clicker Quiz - bloodhounds Incorporated
Clicker Quiz - bloodhounds Incorporated

... Which of the following is the function of the pigmented layer of the eye? A. Reflects light after hitting the retina B. Absorbs light after hitting the retina C. Assists the lens in rounding up to see ...
Nervous System Intro Part 1
Nervous System Intro Part 1

... 3. Motor output  A response to integrated stimuli  The response activates muscles or glands Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
Control and Coordination
Control and Coordination

... Control and Coordination In the earlier lessons you have studied that the body of all living organisms is made up of cells. These cells aggregate and differentiate to form tissues and assembly of different tissues forms different organs. The various organs perform their functions at the right time s ...
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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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