2015-2016_1Semester_Exam2_140116
... Changes of the membrane potential upon binding of GABA to GABA-A receptors From -30mV to -65mV Changes in the firing rate of motoneurons, if the innervated muscle fibers are suddenly elongated: wtf ...
... Changes of the membrane potential upon binding of GABA to GABA-A receptors From -30mV to -65mV Changes in the firing rate of motoneurons, if the innervated muscle fibers are suddenly elongated: wtf ...
The Nervous System
... • One axon per cell arising from axon hillock – Cone-shaped area of cell body ...
... • One axon per cell arising from axon hillock – Cone-shaped area of cell body ...
NS Outline
... i. Most abundant neural cells. Form a barrier b/w capillaries & neurons to help protect the neurons from harmful substances in the blood. ii. make tight sheaths around the brain’s capillaries forming the blood-brain barrier that regulates the chemical environment by picking up excess ions & recaptur ...
... i. Most abundant neural cells. Form a barrier b/w capillaries & neurons to help protect the neurons from harmful substances in the blood. ii. make tight sheaths around the brain’s capillaries forming the blood-brain barrier that regulates the chemical environment by picking up excess ions & recaptur ...
Nerve
... -neurons synapse on cell bodies, dendrites, or axons of other neurons -neurons integrate, conduct, and transmit coded information B. Cell Body (Perikaryon) -contains the nucleus, ribosomes, ER, Golgi apparatus, and other cellular organelles -the ER synthesizes neurotransmitter and contains the ribos ...
... -neurons synapse on cell bodies, dendrites, or axons of other neurons -neurons integrate, conduct, and transmit coded information B. Cell Body (Perikaryon) -contains the nucleus, ribosomes, ER, Golgi apparatus, and other cellular organelles -the ER synthesizes neurotransmitter and contains the ribos ...
Neuroanatomy
... terminal buttons that extends from the cell body and carries messages towards the intended destination (neuron, muscle, gland, etc.) ...
... terminal buttons that extends from the cell body and carries messages towards the intended destination (neuron, muscle, gland, etc.) ...
CHAPTER10B
... www.mc.vanderbilt.edu/histology/slide.php?image_name=myelin&slide_file=images/histology/nervous_tissue/display/schwann3.jpg&image_id=1058 ...
... www.mc.vanderbilt.edu/histology/slide.php?image_name=myelin&slide_file=images/histology/nervous_tissue/display/schwann3.jpg&image_id=1058 ...
Slide 1
... terminal buttons that extends from the cell body and carries messages towards the intended destination (neuron, muscle, gland, etc.) ...
... terminal buttons that extends from the cell body and carries messages towards the intended destination (neuron, muscle, gland, etc.) ...
11 Func[ons of the Nervous System Divisions of the Nervous System
... – Release neurotransmiders to excite or inhibit other cells ...
... – Release neurotransmiders to excite or inhibit other cells ...
Biology 3201 - Corner Brook Regional High
... Transmitters move across the synapse to send messages from one neuron to the other. Receptor molecules pick up the message. ...
... Transmitters move across the synapse to send messages from one neuron to the other. Receptor molecules pick up the message. ...
Nervous Tissue
... The part of the neuron which immediately surrounds the nucleus Usually used synonymously with neuron or soma ...
... The part of the neuron which immediately surrounds the nucleus Usually used synonymously with neuron or soma ...
PNS Teacher
... Neurons, Nerve fibre and Nerves • Neuron- a nerve cell • Nerve Fibre- any long extension of cytoplasm of a nerve cell body, although the term usually refers to an axon • Nerve- a bundle of fivres held together by ...
... Neurons, Nerve fibre and Nerves • Neuron- a nerve cell • Nerve Fibre- any long extension of cytoplasm of a nerve cell body, although the term usually refers to an axon • Nerve- a bundle of fivres held together by ...
structure and function of the neurologic system
... – Regeneration more optimistic if injury further away from cell body – With regeneration, see: • Swelling distal to injury • Filaments hypertrophy ...
... – Regeneration more optimistic if injury further away from cell body – With regeneration, see: • Swelling distal to injury • Filaments hypertrophy ...
Document
... potential to cross the threshold an action potential results • The action potential is the complete depolarization of the cell • The action potential is an all-or-nothing event – If the local potential meets threshold, the cell totally depolarizes and the action potential results – If the potential ...
... potential to cross the threshold an action potential results • The action potential is the complete depolarization of the cell • The action potential is an all-or-nothing event – If the local potential meets threshold, the cell totally depolarizes and the action potential results – If the potential ...
Chapter Outline
... neuron that responds to it – 1st neuron is presynaptic neuron – 2nd neuron is postsynaptic neuron ...
... neuron that responds to it – 1st neuron is presynaptic neuron – 2nd neuron is postsynaptic neuron ...
the nervous system - Fullfrontalanatomy.com
... a long slender cytoplasmic process of a neuron; axons are capable of conducting nerve impulses called action potentials ...
... a long slender cytoplasmic process of a neuron; axons are capable of conducting nerve impulses called action potentials ...
Action Potential
... resting potential is close to potential needed to “fire” = neurotransmitter release ...
... resting potential is close to potential needed to “fire” = neurotransmitter release ...
Development of the Cerebral Cortex: VI. Growth Factors
... Earlier columns described how neurons are born and migrate to their final destination within the cerebral cortex. In the next stage of cortical development, axons and dendrites grow and form synapses. From birth to age 6 years, the child's brain grows dramatically (Fig. 1). This growth is not due to ...
... Earlier columns described how neurons are born and migrate to their final destination within the cerebral cortex. In the next stage of cortical development, axons and dendrites grow and form synapses. From birth to age 6 years, the child's brain grows dramatically (Fig. 1). This growth is not due to ...
Brain_s Building Blocks-Student
... PARTS OF THE NEURON (CONT.) • End bulbs or Terminal bulbs – located at extreme ends of the axon’s branches – miniature container that stores chemicals called neurotransmitters (used to communicate with neighboring cells) • Synapse – infinitely small space (20-30 billionths of a meter) – exists betw ...
... PARTS OF THE NEURON (CONT.) • End bulbs or Terminal bulbs – located at extreme ends of the axon’s branches – miniature container that stores chemicals called neurotransmitters (used to communicate with neighboring cells) • Synapse – infinitely small space (20-30 billionths of a meter) – exists betw ...
Chapter 48: Nervous Systems Overview: Command and Control
... • In vertebrates, axons are myelinated, which also causing the speed of an action potential to increase – Gaps between the myelination are known as ______________________________ Neurons communicate with other cells at synapses • In an electrical synapse, electrical current flows directly from one c ...
... • In vertebrates, axons are myelinated, which also causing the speed of an action potential to increase – Gaps between the myelination are known as ______________________________ Neurons communicate with other cells at synapses • In an electrical synapse, electrical current flows directly from one c ...
File
... Fun Fact: Where can the largest cells in the world be found? The giraffe’s sensory and motor neurons! Some must bring impulses from the bottom of their legs to their spinal cord several meters away!! ...
... Fun Fact: Where can the largest cells in the world be found? The giraffe’s sensory and motor neurons! Some must bring impulses from the bottom of their legs to their spinal cord several meters away!! ...
Nervous Tissue
... • Gray matter = nerve cell bodies, dendrites, axon terminals, bundles of unmyelinated axons and neuroglia (gray color) – In the spinal cord = gray matter forms an H-shaped inner core surrounded by white matter – In the brain = a thin outer shell of gray matter covers the surface & is found in cluste ...
... • Gray matter = nerve cell bodies, dendrites, axon terminals, bundles of unmyelinated axons and neuroglia (gray color) – In the spinal cord = gray matter forms an H-shaped inner core surrounded by white matter – In the brain = a thin outer shell of gray matter covers the surface & is found in cluste ...
BIOLOGICAL BASES OF BEHAVIOR
... • Positive ions will flow into the neuron if not stopped or pumped out by the membrane. This is called the electrical potential, which is measured in millivolts. • The resting potential is the neuron’s usual charge, which is –70 millivolts. • When the resting potential has changed enough, about +10 ...
... • Positive ions will flow into the neuron if not stopped or pumped out by the membrane. This is called the electrical potential, which is measured in millivolts. • The resting potential is the neuron’s usual charge, which is –70 millivolts. • When the resting potential has changed enough, about +10 ...
Neurons and Neurotransmission - Milton
... “One-third of humanity has perished from the plague. 2.3 billion people have died, and countless more are quickly moving towards the final stages of the disease. There is reason to believe that in a short time, nearly everyone on Earth will be infected. The virus continues to spread exponentially, a ...
... “One-third of humanity has perished from the plague. 2.3 billion people have died, and countless more are quickly moving towards the final stages of the disease. There is reason to believe that in a short time, nearly everyone on Earth will be infected. The virus continues to spread exponentially, a ...
Nervous System Formative Study Guide File
... would take that would make you move in response to a tap on the shoulder. The tap on the shoulder would be picked up by sensory neurons, the sensory neurons send the signal to the CNS, and the CNS sends a message to the motor neurons causing movement. 3. Define the following: a. Axon An axon, also k ...
... would take that would make you move in response to a tap on the shoulder. The tap on the shoulder would be picked up by sensory neurons, the sensory neurons send the signal to the CNS, and the CNS sends a message to the motor neurons causing movement. 3. Define the following: a. Axon An axon, also k ...
Axon
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An axon (from Greek ἄξων áxōn, axis), also known as a nerve fibre, is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body. The function of the axon is to transmit information to different neurons, muscles and glands. In certain sensory neurons (pseudounipolar neurons), such as those for touch and warmth, the electrical impulse travels along an axon from the periphery to the cell body, and from the cell body to the spinal cord along another branch of the same axon. Axon dysfunction causes many inherited and acquired neurological disorders which can affect both the peripheral and central neurons.An axon is one of two types of protoplasmic protrusions that extrude from the cell body of a neuron, the other type being dendrites. Axons are distinguished from dendrites by several features, including shape (dendrites often taper while axons usually maintain a constant radius), length (dendrites are restricted to a small region around the cell body while axons can be much longer), and function (dendrites usually receive signals while axons usually transmit them). All of these rules have exceptions, however.Some types of neurons have no axon and transmit signals from their dendrites. No neuron ever has more than one axon; however in invertebrates such as insects or leeches the axon sometimes consists of several regions that function more or less independently of each other. Most axons branch, in some cases very profusely.Axons make contact with other cells—usually other neurons but sometimes muscle or gland cells—at junctions called synapses. At a synapse, the membrane of the axon closely adjoins the membrane of the target cell, and special molecular structures serve to transmit electrical or electrochemical signals across the gap. Some synaptic junctions appear partway along an axon as it extends—these are called en passant (""in passing"") synapses. Other synapses appear as terminals at the ends of axonal branches. A single axon, with all its branches taken together, can innervate multiple parts of the brain and generate thousands of synaptic terminals.