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... • Neurons cont. • What are the possible synapses? – Axo-somatic—axon to cell body – Axo-dendritic—synapse onto dendrite – Axo-axonic—axon to axon ...
... • Neurons cont. • What are the possible synapses? – Axo-somatic—axon to cell body – Axo-dendritic—synapse onto dendrite – Axo-axonic—axon to axon ...
learning objectives chapter 2
... association cortex. (see “Sensory and Motor Cortex” and “Association Cortex”) 20. Explain the roles of Broca’s area and Wernicke’s area in language production and comprehension. (see “Association Cortex”) 21. Explain how split-brain studies provide insight into the specialized functions of the brain ...
... association cortex. (see “Sensory and Motor Cortex” and “Association Cortex”) 20. Explain the roles of Broca’s area and Wernicke’s area in language production and comprehension. (see “Association Cortex”) 21. Explain how split-brain studies provide insight into the specialized functions of the brain ...
Lectures220Week7Note..
... an axon, myelination (via Schwann cells) prevents ions from leaking out across the plasma membrane. Node of Ranvier ...
... an axon, myelination (via Schwann cells) prevents ions from leaking out across the plasma membrane. Node of Ranvier ...
Neuron Anatomy
... OLIGODENDROCYTES (CNS) & SCHWANN CELLS (PNS) Processes of both types wrap around axon(s), forming an insulating sheath called myelin. Oligodendrocyte: its processes form multiple internodes on different axons and its cell body is located between the different axons. Schwann cell: its process forms ...
... OLIGODENDROCYTES (CNS) & SCHWANN CELLS (PNS) Processes of both types wrap around axon(s), forming an insulating sheath called myelin. Oligodendrocyte: its processes form multiple internodes on different axons and its cell body is located between the different axons. Schwann cell: its process forms ...
Neurons - World of Teaching
... This neutralizes the negative ions inside. The inside of the axon becomes temporarily (+) while the outside becomes temporarily (-). The reversal of charge is known as “depolarization” Nearby Sodium (Na+) channels open to continue the ...
... This neutralizes the negative ions inside. The inside of the axon becomes temporarily (+) while the outside becomes temporarily (-). The reversal of charge is known as “depolarization” Nearby Sodium (Na+) channels open to continue the ...
diseases of the nerve roots
... down the nerve root ),radiating in the distribution of a nerve root, often associated with sensory loss and paraspinal muscle spasm – Sensory loss (often vague or ill defined) – Weakness (often subjective, not present, or mild) – Reflex loss (may be present or absent) – Chronic radiculopathy can res ...
... down the nerve root ),radiating in the distribution of a nerve root, often associated with sensory loss and paraspinal muscle spasm – Sensory loss (often vague or ill defined) – Weakness (often subjective, not present, or mild) – Reflex loss (may be present or absent) – Chronic radiculopathy can res ...
Chapter 13 - Los Angeles City College
... Carry signals from one part of the body to another. 2. Supporting cells: Nourish, protect, and insulate neurons. There are roughly 50 supporting cells for every neuron. In humans, Schwann cells wrap around the axons of neurons, forming a myelin sheath that is essential for transmission of nerv ...
... Carry signals from one part of the body to another. 2. Supporting cells: Nourish, protect, and insulate neurons. There are roughly 50 supporting cells for every neuron. In humans, Schwann cells wrap around the axons of neurons, forming a myelin sheath that is essential for transmission of nerv ...
Molecular and Cellular Mechanisms of the Neurovascular Link
... Fig. 2: Model systems to study neuro-vascular communication during CNS development. A) Image of a spinal cord cross-section from a E11.5 mouse embryo where blood vessels are labeled with the endothelial cell marker CD31 (red) and motor neurons with the HB9 marker (green). B) Whole mount image of a m ...
... Fig. 2: Model systems to study neuro-vascular communication during CNS development. A) Image of a spinal cord cross-section from a E11.5 mouse embryo where blood vessels are labeled with the endothelial cell marker CD31 (red) and motor neurons with the HB9 marker (green). B) Whole mount image of a m ...
Chapter 2
... or chromatolysis. In the absence of axonal regeneration, the cell body may later shrink or die. Axons severed in the peripheral nervous system can regrow and reinnervate their targets. In mammals, axons transected within the CNS fail to regenerate effectively. Synaptic rearrangements, however, can o ...
... or chromatolysis. In the absence of axonal regeneration, the cell body may later shrink or die. Axons severed in the peripheral nervous system can regrow and reinnervate their targets. In mammals, axons transected within the CNS fail to regenerate effectively. Synaptic rearrangements, however, can o ...
6.1 The Nervous System - Blyth-Exercise
... - Still very rapid, but involves more interneurons Crossed-Extensor Reflex - When one arm or leg automatically compensates for a reflex action in the opposing arm or leg - The reflex involves multiple synapses and muscle groups ...
... - Still very rapid, but involves more interneurons Crossed-Extensor Reflex - When one arm or leg automatically compensates for a reflex action in the opposing arm or leg - The reflex involves multiple synapses and muscle groups ...
![Unit 8 Review Sheet[1]](http://s1.studyres.com/store/data/001686639_1-accaddf9a4bef8f1f5e508cc8efafb82-300x300.png)
Unit 8 Review Sheet[1]
... may help to correct this kind of deafness b/c they can still detect vibrations in their inner ear. 2. Sensorineural deafness: damage to the inner ear, including the hair cells. Cochlear implants can help people with this kind of damage. ...
... may help to correct this kind of deafness b/c they can still detect vibrations in their inner ear. 2. Sensorineural deafness: damage to the inner ear, including the hair cells. Cochlear implants can help people with this kind of damage. ...
The Integumentary System
... Blood vessels maintain body temperature Sweat and oil glands Lamellar corpuscles- sensory receptors ...
... Blood vessels maintain body temperature Sweat and oil glands Lamellar corpuscles- sensory receptors ...
Indicate the answer choice that best completes the statement or
... 13. A resting potential occurs when a neuron a. is inactive. b. reaches its threshold. c. reaches its trigger point for firing. d. reaches -50 millivolts. 14. Regarding brain cells regeneration and repair, which of the following statements is FALSE? a. Although the brain loses cells daily, it simult ...
... 13. A resting potential occurs when a neuron a. is inactive. b. reaches its threshold. c. reaches its trigger point for firing. d. reaches -50 millivolts. 14. Regarding brain cells regeneration and repair, which of the following statements is FALSE? a. Although the brain loses cells daily, it simult ...
Study Guide - WordPress.com
... _______________________________________________________________ 2. Give an example of how your sensory organs work with your brain to help you to maintain homeostasis? _______________________________________________________________ _______________________________________________________________ MAIN ...
... _______________________________________________________________ 2. Give an example of how your sensory organs work with your brain to help you to maintain homeostasis? _______________________________________________________________ _______________________________________________________________ MAIN ...
Nervous System
... Chemicals released at a neuron’s output zone may stimulate or inhibit activity in an adjacent cell Psychoactive drugs interfere with the information flow between cells ...
... Chemicals released at a neuron’s output zone may stimulate or inhibit activity in an adjacent cell Psychoactive drugs interfere with the information flow between cells ...
Ch12.Nervous.Tissue_1
... Neuronal Regeneration in the PNS • Neural injuries may cause permanent dysfunction • If axons alone are destroyed, cell bodies often survive & axons may regenerate – PNS macrophages invade & destroy axon distal to the injury • Schwann cells form regeneration tube • Axon filaments grow peripherall ...
... Neuronal Regeneration in the PNS • Neural injuries may cause permanent dysfunction • If axons alone are destroyed, cell bodies often survive & axons may regenerate – PNS macrophages invade & destroy axon distal to the injury • Schwann cells form regeneration tube • Axon filaments grow peripherall ...
THE NERVOUS SYSTEM
... • Gaps between Schwann cells are called __________________________ • Myelinated fibers also in CNS as ___________________________-around small segment of 1 nerve fiber-coiling around as many as 60 fibers at one time…Since they lack neurilemma that contributes to non – regeneration property ...
... • Gaps between Schwann cells are called __________________________ • Myelinated fibers also in CNS as ___________________________-around small segment of 1 nerve fiber-coiling around as many as 60 fibers at one time…Since they lack neurilemma that contributes to non – regeneration property ...
Action Potential Web Quest
... Play the game “Make A Mad Mad Mad Neuron” with Dr. Dedristein (use headphones if you have some) 4. My score was _____________ because _________________________________________ Part 2 – Other Cells in the Brain & Reward Pathway Go to http://learn.genetics.utah.edu/content/neuroscience/braincells/ Ans ...
... Play the game “Make A Mad Mad Mad Neuron” with Dr. Dedristein (use headphones if you have some) 4. My score was _____________ because _________________________________________ Part 2 – Other Cells in the Brain & Reward Pathway Go to http://learn.genetics.utah.edu/content/neuroscience/braincells/ Ans ...
Bell`s and Erb`s Palsy
... • Small sensory component (the nervus intermedius of Wrisberg); conveys taste sensation from the anterior 2/3 of the tongue • Motor nucleus of 7th nerve lies anterior and lateral to the abducens nucleus ...
... • Small sensory component (the nervus intermedius of Wrisberg); conveys taste sensation from the anterior 2/3 of the tongue • Motor nucleus of 7th nerve lies anterior and lateral to the abducens nucleus ...
BIOL 104 Test 3 11/1/11 Name .£#`1 C. I i () ./The central nervous
... Which of the following types of nerves is not covered by a protective myelin sheath? long axons gray matter of the CNS white matter of the CNS )nerve fibers within the PNS ;'Depolarization of the neuron occurs when ) the potassium gates open and potassium moves outside the cell. o the sodium-potassi ...
... Which of the following types of nerves is not covered by a protective myelin sheath? long axons gray matter of the CNS white matter of the CNS )nerve fibers within the PNS ;'Depolarization of the neuron occurs when ) the potassium gates open and potassium moves outside the cell. o the sodium-potassi ...
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... A weight lifter is straining to lift a 200-kg barbell. Shortly after he lifts it to chest height, his muscles appear to relax and he drops the barbell. Which reflex has occurred? ...
... A weight lifter is straining to lift a 200-kg barbell. Shortly after he lifts it to chest height, his muscles appear to relax and he drops the barbell. Which reflex has occurred? ...
BIOL 2121 Study Guide Test 4 Chapter 11: Nervous System List 3
... List 3 functions of the nervous system Know all divisions of the nervous system and what comprises each Know the 2 major types of nervous tissue o Know functions of all neuroglia cells Be able to identify/label/describe all parts of a neuron Be able to classify neurons structurally and fun ...
... List 3 functions of the nervous system Know all divisions of the nervous system and what comprises each Know the 2 major types of nervous tissue o Know functions of all neuroglia cells Be able to identify/label/describe all parts of a neuron Be able to classify neurons structurally and fun ...
unit 6 - nervous system / special senses
... B. When the neuron is stimulated, (by another neuron, light in the eye or a touch on the skin), a phase known as depolarization occurs. The sodium channels (gates) in the cell membrane open. This allows sodium to diffuse quickly into the axon. The inward rush of sodium ions changes the charge of the ...
... B. When the neuron is stimulated, (by another neuron, light in the eye or a touch on the skin), a phase known as depolarization occurs. The sodium channels (gates) in the cell membrane open. This allows sodium to diffuse quickly into the axon. The inward rush of sodium ions changes the charge of the ...