Anatomy and Physiology Unit 7
... 43. What is the major difference between gray matter and white matter in the CNS? Gray matter—contains mostly unmyelinated fibers and cell bodies White matter—consists of dense collections of myelinated fibers (tracts) 44. The __corpus callosum_____ connects the two hemispheres of the brain. 45. The ...
... 43. What is the major difference between gray matter and white matter in the CNS? Gray matter—contains mostly unmyelinated fibers and cell bodies White matter—consists of dense collections of myelinated fibers (tracts) 44. The __corpus callosum_____ connects the two hemispheres of the brain. 45. The ...
Bowman`s capsule movie
... • Oligodendrocytes: glial cells of CNS which performs function similar to Schwann cells • Astrocytes: Star-shaped glial cells that create blood-brain barrier – Surround the smallest, most permeable blood vessels in the brain and protect brain from damage by chemical toxins; protection of brain is cr ...
... • Oligodendrocytes: glial cells of CNS which performs function similar to Schwann cells • Astrocytes: Star-shaped glial cells that create blood-brain barrier – Surround the smallest, most permeable blood vessels in the brain and protect brain from damage by chemical toxins; protection of brain is cr ...
Nervous System webquest……
... Work efficiently because there are many part to this webquest. Research and findings will go on a separate sheet of paper. Part 1: Who was Phineas Gage? http://www.smithsonianmag.com/history-archaeology/Phineas-Gage-NeurosciencesMost-Famous-Patient.html Who was Phineas Gage and what happened to him? ...
... Work efficiently because there are many part to this webquest. Research and findings will go on a separate sheet of paper. Part 1: Who was Phineas Gage? http://www.smithsonianmag.com/history-archaeology/Phineas-Gage-NeurosciencesMost-Famous-Patient.html Who was Phineas Gage and what happened to him? ...
The Nervous System and The Brain
... and a muscle. When ACh is released to the muscle cells, the muscle contracts. If ACh is blocked, muscles cannot contract. Ex. Curare – Poison that occupies and blocks ACh receptor sites leaving the neurotransmitter unable to affect the muscles – result is paralysis. Monkey http://www.youtube.com/wat ...
... and a muscle. When ACh is released to the muscle cells, the muscle contracts. If ACh is blocked, muscles cannot contract. Ex. Curare – Poison that occupies and blocks ACh receptor sites leaving the neurotransmitter unable to affect the muscles – result is paralysis. Monkey http://www.youtube.com/wat ...
Peripheral nervous system
... • myelinated + larger axon diamter >> fast action potential transmission Synapse Intercellular junction between dendrites and soma • electrical synapse - uses direct cytoplasmic connections ...
... • myelinated + larger axon diamter >> fast action potential transmission Synapse Intercellular junction between dendrites and soma • electrical synapse - uses direct cytoplasmic connections ...
MTC42: control of smooth muscle 11/10/07
... visceral requirements of our body which continues whether we are asleep or awake In most cases we are unaware of autonomic nervous activity within our bodies The ANS has three divisions: o Sympathetic – arising from the spinal cord (thoraco-lumbar) o Parasympathetic – arising from the brain stem (cr ...
... visceral requirements of our body which continues whether we are asleep or awake In most cases we are unaware of autonomic nervous activity within our bodies The ANS has three divisions: o Sympathetic – arising from the spinal cord (thoraco-lumbar) o Parasympathetic – arising from the brain stem (cr ...
Chapter 3
... they don’t…There is no in between • The gaps between neurons are called synapse or the synaptic gap or cleft • Neurotransmitters are chemical messengers that travel between the synaptic gap; binding to receptors determining whether the neuron will generate an impulse and allowing depolarization to o ...
... they don’t…There is no in between • The gaps between neurons are called synapse or the synaptic gap or cleft • Neurotransmitters are chemical messengers that travel between the synaptic gap; binding to receptors determining whether the neuron will generate an impulse and allowing depolarization to o ...
Anatomy of the Nervous System
... – Interpret sensory info and send info to outgoing motor neurons (mostly in CNS) ...
... – Interpret sensory info and send info to outgoing motor neurons (mostly in CNS) ...
Nerves, Hormones and Homeostasis
... the body very rapidly 3 Basic Parts of a Neuron Dendrites – branched part of a neuron that are designed to ...
... the body very rapidly 3 Basic Parts of a Neuron Dendrites – branched part of a neuron that are designed to ...
03. Neurons and Nerves
... are many kinds of neurons. They differ in size, structure and function. ...
... are many kinds of neurons. They differ in size, structure and function. ...
Human Nerve Chapter
... organ systems that integrate and coordinate with each other, the nervous and the endocrine systems. Nervous systems perform these basic functions: Receiving sensory input from the internal and external environments through receptors. Integrating the inputs in a central location to determine an appro ...
... organ systems that integrate and coordinate with each other, the nervous and the endocrine systems. Nervous systems perform these basic functions: Receiving sensory input from the internal and external environments through receptors. Integrating the inputs in a central location to determine an appro ...
Reflex and autonomic nervous system
... Has sensory receptors that collect information form internal and external environments. The information is passed on to the central nervous system. Pair share: name 2 things that the sensory receptors might collect from the internal and external environment. ...
... Has sensory receptors that collect information form internal and external environments. The information is passed on to the central nervous system. Pair share: name 2 things that the sensory receptors might collect from the internal and external environment. ...
EXPLORING PSYCHOLOGY (7th Edition in Modules) David Myers
... of the CNS when you sleep • Benzodiazepines (which include tranquilizers such as Valium) and alcohol work on GABA receptor complexes ...
... of the CNS when you sleep • Benzodiazepines (which include tranquilizers such as Valium) and alcohol work on GABA receptor complexes ...
Intro Nervous System and Neurons
... Axon Terminals- axon ends • contain vesicles with neurotransmitters • do not touch dendrite of next neuron OR muscle – Synaptic cleft—gap between adjacent neurons – Synapse—junction between nerves ...
... Axon Terminals- axon ends • contain vesicles with neurotransmitters • do not touch dendrite of next neuron OR muscle – Synaptic cleft—gap between adjacent neurons – Synapse—junction between nerves ...
Nervous System Neuron: nerve cell, functional unit of nervous
... Glutamate: Major neurotransmitter in the brain ● learning, memory, plasticity ● Open/allows entry (synaptic connects) Na+,Ca+2 channels into receiving or post-synaptic neuron. This is an excitatory signal because it makes inside of cell positive and thus excitatory. ● K+ channels may also close whic ...
... Glutamate: Major neurotransmitter in the brain ● learning, memory, plasticity ● Open/allows entry (synaptic connects) Na+,Ca+2 channels into receiving or post-synaptic neuron. This is an excitatory signal because it makes inside of cell positive and thus excitatory. ● K+ channels may also close whic ...
Section: Nervous system
... THE SPINAL CORD 32. The spinal cord is protected by _______________ . 33. The spinal cord is made of ________________ and ________________. 34. Nerve fibers in your spinal cord allow your brain to communicate with your _____________ nervous system. 35. A spinal cord injury may block all information ...
... THE SPINAL CORD 32. The spinal cord is protected by _______________ . 33. The spinal cord is made of ________________ and ________________. 34. Nerve fibers in your spinal cord allow your brain to communicate with your _____________ nervous system. 35. A spinal cord injury may block all information ...
Chapters 31 and 34 - Nervous Endocrine
... • Type of neuron that sends message from sense organ to spinal cord/brain – Sensory neuron ...
... • Type of neuron that sends message from sense organ to spinal cord/brain – Sensory neuron ...
Neural transmission
... Multiple Sclerosis is an incurable debilitating disease of the central nervous system. MS affects young to middle aged adults. Approximately 4 million worldwide have this disease. 400,000 of these people live in the United States. It can affect anyone, and can strike at anytime without warning. Once ...
... Multiple Sclerosis is an incurable debilitating disease of the central nervous system. MS affects young to middle aged adults. Approximately 4 million worldwide have this disease. 400,000 of these people live in the United States. It can affect anyone, and can strike at anytime without warning. Once ...
Nervous System
... As chemicals dissolve in mucus in area of smell receptors, the impulses are transferred to the olfactory ...
... As chemicals dissolve in mucus in area of smell receptors, the impulses are transferred to the olfactory ...
Answers
... CELLS COMPARED TO THAT ON NERVE CELLS 10. State five ways that glia differ from neurons. Neurons have TWO "processes" called axons and dendrites....glial cells only have ONE; Neurons CAN generate action potentials...glial cells CANNOT. However, glial cells do have a resting potential; neurons HAVE s ...
... CELLS COMPARED TO THAT ON NERVE CELLS 10. State five ways that glia differ from neurons. Neurons have TWO "processes" called axons and dendrites....glial cells only have ONE; Neurons CAN generate action potentials...glial cells CANNOT. However, glial cells do have a resting potential; neurons HAVE s ...
The Nervous System
... neuron to neuron across gaps called synapses. A sending neuron synthesizes neurotransmitter molecules and bundles them into packages; when the neuron becomes electrically excited, it releases the neurotransmitter molecules into the synapse. Once in the synapse, each molecule may: Dock on a receptor ...
... neuron to neuron across gaps called synapses. A sending neuron synthesizes neurotransmitter molecules and bundles them into packages; when the neuron becomes electrically excited, it releases the neurotransmitter molecules into the synapse. Once in the synapse, each molecule may: Dock on a receptor ...
file - Athens Academy
... A. if the membrane potential reaches a threshold value. B. when negative proteins and ions rapidly enter the cell. C. when the inside of the cell becomes negative compared to the outside. D. when there is repolarization. E. All of these are correct. ...
... A. if the membrane potential reaches a threshold value. B. when negative proteins and ions rapidly enter the cell. C. when the inside of the cell becomes negative compared to the outside. D. when there is repolarization. E. All of these are correct. ...
Navigating The Nervous System
... 12.Name the three parts of the brain and describe the function of each: a. Cerebrum- controls all thinking, reasoning, memory functions, and voluntary muscle control. The left half of the cerebrum generally does the analytical work (math), and the right half does the creative thinking. b. Cerebellum ...
... 12.Name the three parts of the brain and describe the function of each: a. Cerebrum- controls all thinking, reasoning, memory functions, and voluntary muscle control. The left half of the cerebrum generally does the analytical work (math), and the right half does the creative thinking. b. Cerebellum ...
Biology of Humans 2/e
... The signal passes across the synaptic cleft as a chemical called neurotransmitter which is released from vesicles by exocytosis. Neurotransmitter is a chemical that is secreted into a synaptic cleft by a neuron that affects another neuron or an effector by binding with receptors on it. The sending c ...
... The signal passes across the synaptic cleft as a chemical called neurotransmitter which is released from vesicles by exocytosis. Neurotransmitter is a chemical that is secreted into a synaptic cleft by a neuron that affects another neuron or an effector by binding with receptors on it. The sending c ...
Biology
... Sensory- carry messages from sense organs to spinal cord or brain Motor- carry messages from spinal cord or brain to muscles or glands Interneurons- carry messages from one neuron to another and do most of the work of the nervous system ...
... Sensory- carry messages from sense organs to spinal cord or brain Motor- carry messages from spinal cord or brain to muscles or glands Interneurons- carry messages from one neuron to another and do most of the work of the nervous system ...
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.