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Mod 07-Lecture - Phoenix Military Academy
Mod 07-Lecture - Phoenix Military Academy

... Our nervous system is composed of the central nervous system and the peripheral nervous system. o Central NS = the brain and spinal chord which process information; they’re so important they’re both encased in bone. Spinal cord is protected by meninges (membranes) and is composed of interneurons and ...
Document
Document

... __B__9. What is the function of neurotransmitters? a. builds new neurons b. chemically link neurons across the synapse to conduct impulses c. push sodium ions across the plasma membrane d. increases the speed of the impulse along the axon __B__10. The minimum level of a stimulus that is required to ...
Peripheral Nervous System
Peripheral Nervous System

... Terminal Buttons (AKA: Axon Terminals) * Sends Messages ...
The Biological Bases of Behavior: The Neuron
The Biological Bases of Behavior: The Neuron

... Acetylcholine: (Ach) Acetylcholine is particularly important in the stimulation of muscle tissue. Contributes the regulation of attention, arousal and memory. The poison curare blocks transmission of acetylcholine. Some nerve gases inhibit the breakdown of acetylcholine, producing a continuous stimu ...
Nervous System Cells
Nervous System Cells

... – Regulate smooth muscle, cardiac muscle, and glands – Divisions – sympathetic and parasympathetic---Ch 14 Objective ...
Chapter 13 - Nervous Tissue
Chapter 13 - Nervous Tissue

... specialized to detect stimuli and transmit the information to CNS. They begin in any organ in the body, but end in the brain or spinal cord. ...
CHAPTER 11 Nervous Tissue - Austin Community College
CHAPTER 11 Nervous Tissue - Austin Community College

... specialized to detect stimuli and transmit the information to CNS. They begin in any organ in the body, but end in the brain or spinal cord. ...
Print › psych chapter 2 | Quizlet | Quizlet
Print › psych chapter 2 | Quizlet | Quizlet

... A subdivision of the peripheral nervous system. Controls involuntary activity of visceral muscles and internal organs and glands. ...
Nervous System
Nervous System

... commanding voluntary motor response; coordinates other areas of the brain; and carries out higher thought processes, memory, language, speech, and learning. ...
sensory overload - Saint Michael`s College
sensory overload - Saint Michael`s College

... Neurons can’t cope with this kind of excessive excitation. Unlike muscle tissue, they have no energy reserves or alternative energy resources. In many human-made environments, such as cinemas, rock concerts, or dance clubs, it is not only the acoustic system that is stretched to its physical and met ...
CNS: Spinal Cord Function
CNS: Spinal Cord Function

... commanding voluntary motor response; coordinates other areas of the brain; and carries out higher thought processes, memory, language, speech, and learning. ...
11_1_Dienc_CzehlárB
11_1_Dienc_CzehlárB

... In the visual system, the thalamus receives input from the retina, which is relayed to the brain via the optic nerve. The singnals are sent to the lateral geniculate nucleus of the thalamus, which forwards them onto the visual cortex in occipital lobe. Another important example is the auditory syste ...
Classifications of Neurons 1. Function 2. Structure 3. Shape
Classifications of Neurons 1. Function 2. Structure 3. Shape

... A. Cervical spinal cord B. Thoracic spinal cord C. Lumbar spinal cord D. Lumbo-sacral spinal cord ...
Ch 8 Nervous System Test 1. In a neuron, short, branching
Ch 8 Nervous System Test 1. In a neuron, short, branching

... b. acts as an agonist as one of its major functions. c. is involved in balance, maintenance of muscle tone, and coordination of fine motor movement. d. is stimulated by alcohol. e. acts as an agonist as one of its major functions and is involved in balance, maintenance of muscle tone, and coordinati ...
Nervous Tissue
Nervous Tissue

... The part of the neuron which immediately surrounds the nucleus Usually used synonymously with neuron or soma ...
A View of Life
A View of Life

... Increase of heart rate and blood flow to muscles. Decrease in blood flow to nonessential organs. Increase in blood flow to skeletal and cardiac muscles. Airways dilate and respiratory rate increases. ...
Nerve cells (Neurons)
Nerve cells (Neurons)

...  The _____________ receives the neural impulse which are then carried to the cell body  The _________ carries the nerve impulses on to the __________________ in the _________________ ...
The Peripheral and Autonomic Nervous Systems
The Peripheral and Autonomic Nervous Systems

... Preganglionic fibers entering the adrenal glands synapse within the adrenal medullae. During sympathetic activation these endocrine organs secrete epinephrine and norepinephrine into the bloodstream In a crisis, the entire division responds, producing increased alertness, a feeling of energy and eup ...
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Nerve Pathways Practice Sheet
Nerve Pathways Practice Sheet

... The nervous system is a connection of many different (1) _____________________ (nerve cells). These nerves form pathways that send messages all over the body, in many different directions. (2) ________ neurons detect specific kinds of environmental stimuli, (3) _____________________ connect differen ...
The Nervous System
The Nervous System

... What is the nervous system? The master control and communication system for the body  All thoughts, actions, and emotions  Uses electrical impulses to direct activity and communicate  It monitors the entire body… maintains homeostasis  Sensory input: gather stimuli from environment ...
Module 04
Module 04

... Tens of billions of neurons, each communicating with thousands of other neurons, yield an everchanging wiring diagram. The complexity of the central nervous system allows or makes possible (enables) our thinking, feeling, and behavior. In this way, it is similar to the electronic circuitry (wiring ...
Nervous System
Nervous System

... When a message comes to the Brain from anywhere in the body the Brain tells the body how to react. Let’s say you accidently touch a hot stove. The sensory nerves in your skin send a message to your brain. Your brain sends a message back to the muscles in your hand telling it to move. Luckily this ...
Name Date ______ Nervous System and Endocrine System Exam
Name Date ______ Nervous System and Endocrine System Exam

... 3. The change in the environment that starts an impulse in a receptor is called a ___________________________. 4. The structure that detects a stimulus is called a _____________________________. 5. The reaction to a stimulus is called a __________________________. 6. The ________________________ is ...
CHAPTER 7 Nervous system Notes
CHAPTER 7 Nervous system Notes

... 2 Divisions of ANS  2. Parasympathetic Nervous System:  Structure: Neurons are located in gray ...
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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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