PPT - Wolfweb Websites
... – Driven by ions passing through ion channels – Electrical signal driven along very long axons to target cells – Guest lecturer: Dr Jim Kenyon, UNSOM – Axon computer lab ...
... – Driven by ions passing through ion channels – Electrical signal driven along very long axons to target cells – Guest lecturer: Dr Jim Kenyon, UNSOM – Axon computer lab ...
ch. 48 Nervous System notes
... Interneurons: integrate sensory input and motor output (carry stimuli in the brain and spinal cord) Motor Neurons: convey impulses from CNS to effector cells in muscles or glands Glial cells: support, protect, and nourish neurons ...
... Interneurons: integrate sensory input and motor output (carry stimuli in the brain and spinal cord) Motor Neurons: convey impulses from CNS to effector cells in muscles or glands Glial cells: support, protect, and nourish neurons ...
Brain and Behaviour
... If a neuron receives more excitatory messages, it will fire. If a neuron receives more inhibitory messages it will not fire . ...
... If a neuron receives more excitatory messages, it will fire. If a neuron receives more inhibitory messages it will not fire . ...
Chapter 3
... amphetamines Smoking Dopamine Influences learning and memory and emotional reactions Factor in schizophrenia and Tourette’s syndrome Blocking it used to treat psychosis ...
... amphetamines Smoking Dopamine Influences learning and memory and emotional reactions Factor in schizophrenia and Tourette’s syndrome Blocking it used to treat psychosis ...
Chapter 2
... amphetamines Smoking Dopamine Influences learning and memory and emotional reactions Factor in schizophrenia and Tourette’s syndrome Blocking it used to treat psychosis ...
... amphetamines Smoking Dopamine Influences learning and memory and emotional reactions Factor in schizophrenia and Tourette’s syndrome Blocking it used to treat psychosis ...
Name
... 1. What is homeostasis? Give examples. 2. What are the functions of the nervous system? 3. What is the structure of a neuron and what kinds of neurons are found in the body? 4. How do nerve impulses travel from one neuron to another? 5. What are the structure and functions of the central nervous sys ...
... 1. What is homeostasis? Give examples. 2. What are the functions of the nervous system? 3. What is the structure of a neuron and what kinds of neurons are found in the body? 4. How do nerve impulses travel from one neuron to another? 5. What are the structure and functions of the central nervous sys ...
6.1 Overview of the Nervous System
... a. somatic nervous system (voluntary) – stimulate muscles b. autonomic nervous system (involuntary) – controls smooth muscles, cardiac muscle a. Autonomic takes care of daily functions without thinking - parasympathetic (routine) - sympathetic (high alert) B. Nervous Tissue – two categories of tissu ...
... a. somatic nervous system (voluntary) – stimulate muscles b. autonomic nervous system (involuntary) – controls smooth muscles, cardiac muscle a. Autonomic takes care of daily functions without thinking - parasympathetic (routine) - sympathetic (high alert) B. Nervous Tissue – two categories of tissu ...
Module 6
... One neuron may connect to 80,000 other neurons Total neural connection may exceed one quadrillion (1,000,000,000,000,000 – 15 zeros) Endocrine system communicates by using hormones that travel through the blood system ...
... One neuron may connect to 80,000 other neurons Total neural connection may exceed one quadrillion (1,000,000,000,000,000 – 15 zeros) Endocrine system communicates by using hormones that travel through the blood system ...
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 ...
... 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 ...
chapter the nervous system and the effects of drugs
... The nervous system is like a very complicated computer. As in a computer, electrical signals travel throughout the system. Instead of the wires you would see in a computer, the nervous system is made up of nerve cells, or neurons. The neurons have gaps between them, called synapses, which an electri ...
... The nervous system is like a very complicated computer. As in a computer, electrical signals travel throughout the system. Instead of the wires you would see in a computer, the nervous system is made up of nerve cells, or neurons. The neurons have gaps between them, called synapses, which an electri ...
The Nervous System
... What are the two major divisions of the nervous system? What structures comprise each of these ...
... What are the two major divisions of the nervous system? What structures comprise each of these ...
Anatomy and Physiology Unit 7
... 10. A self-propagating wave of electrical negativity that travels along the surface of the neuron membrane is called a/an _______________________. 11. Indentations between the Schwann cells/myelin sheaths are called the _________ of ______________. 12. Nerve cells are also known as _________________ ...
... 10. A self-propagating wave of electrical negativity that travels along the surface of the neuron membrane is called a/an _______________________. 11. Indentations between the Schwann cells/myelin sheaths are called the _________ of ______________. 12. Nerve cells are also known as _________________ ...
Nervous System Formative Study Guide File
... c. CNS The central nervous system (CNS) is the part of the nervous system consisting of the brain and spinal cord. The peripheral nervous system (or PNS), is composed of nerves leading to and from the CNS, often through junctions known as ganglia. 2. Using what you know about the processes of the ce ...
... c. CNS The central nervous system (CNS) is the part of the nervous system consisting of the brain and spinal cord. The peripheral nervous system (or PNS), is composed of nerves leading to and from the CNS, often through junctions known as ganglia. 2. Using what you know about the processes of the ce ...
Nervous System - Lemon Bay High School
... – How Does it Offer Protection? It bathes the brain and cushions from trauma. – How is it Formed? In a Dense capillary bed by called the CHOROID PLEXUS ...
... – How Does it Offer Protection? It bathes the brain and cushions from trauma. – How is it Formed? In a Dense capillary bed by called the CHOROID PLEXUS ...
The Nervous System WS-11A Review Quest
... the axon and axon terminals, where the impulse will be passed to the dendrites of the next neuron to perpetuate the impulse. 7. Explain how your nervous system would get the message to your brain and respond if you slammed your finger in the car door. Sensory neurons at the ends of the fingertips st ...
... the axon and axon terminals, where the impulse will be passed to the dendrites of the next neuron to perpetuate the impulse. 7. Explain how your nervous system would get the message to your brain and respond if you slammed your finger in the car door. Sensory neurons at the ends of the fingertips st ...
NS Review
... 6. Name the liquid that gives buoyancy to the CNS organs. 7. What is the largest portion of the brain? 8. What part of the brain looks like a cauliflower when cut in half? 9. What part of the diencephalons controls body tempt., thirst, metabolism, & ...
... 6. Name the liquid that gives buoyancy to the CNS organs. 7. What is the largest portion of the brain? 8. What part of the brain looks like a cauliflower when cut in half? 9. What part of the diencephalons controls body tempt., thirst, metabolism, & ...
3a handout
... B. Explain how the action potential works within a neuron. How is it both electrical and chemical? What is the threshhold at which it becomes excitatory? How is it an all-or-nothing response? ...
... B. Explain how the action potential works within a neuron. How is it both electrical and chemical? What is the threshhold at which it becomes excitatory? How is it an all-or-nothing response? ...
Organization of the nervous system
... A Neuron is a very special cell: You have about 100 billion of them! •Cell body: Keeps the neuron alive and determines whether it will fire •Axon:Extending fiber that conducts impulses away from the cell body and transmits to other cells. ...
... A Neuron is a very special cell: You have about 100 billion of them! •Cell body: Keeps the neuron alive and determines whether it will fire •Axon:Extending fiber that conducts impulses away from the cell body and transmits to other cells. ...
Brain & Behavior
... recharge, so to speak • K(+) pumped out of cell, (-) charge restored • Refractory period – neuron cannot fire again during this process ...
... recharge, so to speak • K(+) pumped out of cell, (-) charge restored • Refractory period – neuron cannot fire again during this process ...
Document
... 7. Fill in the blanks (parts of a neuron continued): The transfer of information between neurons is called a ___________________. Most synapses occur between the __________________ ______________________ of one neuron and the ________________________ of another. The fluid-filled space approximately ...
... 7. Fill in the blanks (parts of a neuron continued): The transfer of information between neurons is called a ___________________. Most synapses occur between the __________________ ______________________ of one neuron and the ________________________ of another. The fluid-filled space approximately ...
Neurotoxin
Neurotoxins are substances that are poisonous or destructive to nerve tissue. Neurotoxins are an extensive class of exogenous chemical neurological insults that can adversely affect function in both developing and mature nervous tissue. The term can also be used to classify endogenous compounds, which, when abnormally contact, can prove neurologically toxic. Though neurotoxins are often neurologically destructive, their ability to specifically target neural components is important in the study of nervous systems. Common examples of neurotoxins include lead, ethanol (drinking alcohol), Manganese glutamate, nitric oxide (NO), botulinum toxin (e.g. Botox), tetanus toxin, and tetrodotoxin. Some substances such as nitric oxide and glutamate are in fact essential for proper function of the body and only exert neurotoxic effects at excessive concentrations.Neurotoxins inhibit neuron control over ion concentrations across the cell membrane, or communication between neurons across a synapse. Local pathology of neurotoxin exposure often includes neuron excitotoxicity or apoptosis but can also include glial cell damage. Macroscopic manifestations of neurotoxin exposure can include widespread central nervous system damage such as intellectual disability, persistent memory impairments, epilepsy, and dementia. Additionally, neurotoxin-mediated peripheral nervous system damage such as neuropathy or myopathy is common. Support has been shown for a number of treatments aimed at attenuating neurotoxin-mediated injury, such as antioxidant, and antitoxin administration.