Answer Key
... Students should explain the neural transmission process using the terms in context: Signals are received by the neuron's dendrites or cell body. An action potential is transmitted down the axon, stimulating the terminal branches of the axon to release neurotransmitters into the synapse, which bind w ...
... Students should explain the neural transmission process using the terms in context: Signals are received by the neuron's dendrites or cell body. An action potential is transmitted down the axon, stimulating the terminal branches of the axon to release neurotransmitters into the synapse, which bind w ...
case studies In-depth examinations of an individual or a single event
... serves as a routing station. It is involved in memory for conscious, factual knowledge ...
... serves as a routing station. It is involved in memory for conscious, factual knowledge ...
Unit XIV: Regulation
... - nerves are bundles of neurons 1 – Sensory Neurons – located in sense organs – receptors carry impulses to the spinal cord and brain 2 – Interneurons – located in the central nervous system interpret impulses 3 – Motor Neurons – located at effectors carry impulses from the CNS to muscles and glands ...
... - nerves are bundles of neurons 1 – Sensory Neurons – located in sense organs – receptors carry impulses to the spinal cord and brain 2 – Interneurons – located in the central nervous system interpret impulses 3 – Motor Neurons – located at effectors carry impulses from the CNS to muscles and glands ...
Psychology 101 - Psychological Sciences
... 14. Random assignment to either the control or experimental group is an important aspect of experimental procedures. Random assignment is used to ensure that: a. a representative sample of participants is initially selected b. expectancy effects are minimized within the experiment c. the independent ...
... 14. Random assignment to either the control or experimental group is an important aspect of experimental procedures. Random assignment is used to ensure that: a. a representative sample of participants is initially selected b. expectancy effects are minimized within the experiment c. the independent ...
Neuroscience in PT: Introduction and Review
... presynaptic terminal directly influences the amount of neurotransmitter released • ↑excitatory stimuli to the presynaptic neuron cause increased # action potentials reaching the presynaptic terminal • ↑duration of excitatory stimuli to the presynaptic neuron cause a longer series of action potential ...
... presynaptic terminal directly influences the amount of neurotransmitter released • ↑excitatory stimuli to the presynaptic neuron cause increased # action potentials reaching the presynaptic terminal • ↑duration of excitatory stimuli to the presynaptic neuron cause a longer series of action potential ...
EXPLORING PSYCHOLOGY (7th Edition in Modules) David Myers
... Action Potential Properties All-or-None Response: A strong stimulus can trigger more neurons to fire, and to fire more often, but it does not affect the action potentials strength or speed. Intensity of an action potential remains the same throughout the length of the axon. ...
... Action Potential Properties All-or-None Response: A strong stimulus can trigger more neurons to fire, and to fire more often, but it does not affect the action potentials strength or speed. Intensity of an action potential remains the same throughout the length of the axon. ...
Neuron Function 2
... Chemical synapses A narrow gap of around 20-40 nm exists between pre and post-synaptic membrane To transfer the signal of an arriving AP the synaptic knob (axon terminal) releases small molecules called neurotransmitters into the gap The NT’s diffuse across the gap NT’s bind to receptors in the ...
... Chemical synapses A narrow gap of around 20-40 nm exists between pre and post-synaptic membrane To transfer the signal of an arriving AP the synaptic knob (axon terminal) releases small molecules called neurotransmitters into the gap The NT’s diffuse across the gap NT’s bind to receptors in the ...
Nervous System
... 34 Nodes of ________, also known as neurofibril nodes, are regularly spaced gaps in the myelin sheath around an axon or nerve fiber. 36 ________ neurons are nerve cells within the nervous system responsible for converting external stimuli from the organism's environment into nerve impulses relayed t ...
... 34 Nodes of ________, also known as neurofibril nodes, are regularly spaced gaps in the myelin sheath around an axon or nerve fiber. 36 ________ neurons are nerve cells within the nervous system responsible for converting external stimuli from the organism's environment into nerve impulses relayed t ...
Chapter 48 Nervous System
... Graded potentials are short-lived, local changes in membrane potential that can be either depolarizations or hyperpolarizations. These changes cause current flows that decrease in magnitude with distance. PRODUCTION OF ACTION POTENTIAL Depolarization of a neuron’s membrane is graded up to a particul ...
... Graded potentials are short-lived, local changes in membrane potential that can be either depolarizations or hyperpolarizations. These changes cause current flows that decrease in magnitude with distance. PRODUCTION OF ACTION POTENTIAL Depolarization of a neuron’s membrane is graded up to a particul ...
Chapter 11 - Nervous Tissue
... K+ ions, then Na+ and K+ ions would diffuse along their electrical and chemical gradients and would reach equilibrium if the cell was at equilibrium in terms of ion concentrations and charge, their would be no potential energy available for impulse transmission ...
... K+ ions, then Na+ and K+ ions would diffuse along their electrical and chemical gradients and would reach equilibrium if the cell was at equilibrium in terms of ion concentrations and charge, their would be no potential energy available for impulse transmission ...
Biology 30 NERVOUS SYSTEM
... not reached, the action potential will not occur at all. If the threshold is reached or exceeded a full action potential will result. ...
... not reached, the action potential will not occur at all. If the threshold is reached or exceeded a full action potential will result. ...
Lecture Slides - Austin Community College
... • Neurons – transmit electrical signals • Support cells (neuroglial cells in CNS) • Nonexcitable • Surround and wrap neurons ...
... • Neurons – transmit electrical signals • Support cells (neuroglial cells in CNS) • Nonexcitable • Surround and wrap neurons ...
15_Neuro
... Terminal ends of the axon release a transmitter substance that affects the dendrites of the next neuron. One way transmission of the impulse is assured because only the axons release these chemicals. ...
... Terminal ends of the axon release a transmitter substance that affects the dendrites of the next neuron. One way transmission of the impulse is assured because only the axons release these chemicals. ...
questions - Hatboro
... 10. What is the space between neurons called? 11. The sending cell converts the electrical signal to a chemical signal at the axon terminal. These chemical signals are called __________________________________ and are contained in bags called _____________________________. 12. What’s the neurotransm ...
... 10. What is the space between neurons called? 11. The sending cell converts the electrical signal to a chemical signal at the axon terminal. These chemical signals are called __________________________________ and are contained in bags called _____________________________. 12. What’s the neurotransm ...
Action Potential Neurons at Work
... The sodium potassium pump continually pumps 3 sodium ions outside and 2 K+ inside to keep the outside more positive and the inside more negative. ...
... The sodium potassium pump continually pumps 3 sodium ions outside and 2 K+ inside to keep the outside more positive and the inside more negative. ...
BrainMechanismsofUnconsciousInference2011
... – Most researchers argue that objects are represented by patterns of activation over a set of neurons. – Some cells have surprisingly specific responses, and some authors treat them as dedicated to specific concepts. – We will adopt the grandmother neuron hypothesis today, for simplicity, and procee ...
... – Most researchers argue that objects are represented by patterns of activation over a set of neurons. – Some cells have surprisingly specific responses, and some authors treat them as dedicated to specific concepts. – We will adopt the grandmother neuron hypothesis today, for simplicity, and procee ...
MCB 32 Introductory Human Physiology
... Lying just below the cortex is a thicker mass of brain tissue composed of myelinated fibers having a whiter cast, appropriately called the white matter. Both gray matter and white matter are also seen in the spinal cord. Surrounding the brain is a composite of four tough membranes called the meninge ...
... Lying just below the cortex is a thicker mass of brain tissue composed of myelinated fibers having a whiter cast, appropriately called the white matter. Both gray matter and white matter are also seen in the spinal cord. Surrounding the brain is a composite of four tough membranes called the meninge ...
Nerve Cell Flashcards
... Depolarization: Enough sodium ions flow into the cell to make the membrane potential become positive Repolarization: Enough sodium ions flow out of the cell to make the membrane potential become negative ...
... Depolarization: Enough sodium ions flow into the cell to make the membrane potential become positive Repolarization: Enough sodium ions flow out of the cell to make the membrane potential become negative ...
UNIT 2: Internal geological agents
... electrical signal goes through the neuron membrane, from the cell body to the axon terminals, jumping from one node of Ranvier to another. There is not a phisical contact between two neurons, so once the signalhas reached the axon terminal, it releases subtances calles neurotransmitters to the synap ...
... electrical signal goes through the neuron membrane, from the cell body to the axon terminals, jumping from one node of Ranvier to another. There is not a phisical contact between two neurons, so once the signalhas reached the axon terminal, it releases subtances calles neurotransmitters to the synap ...
Nerve Cell Flashcards
... Depolarization: Enough sodium ions flow into the cell to make the membrane potential become positive Repolarization: Enough sodium ions flow out of the cell to make the membrane potential become negative ...
... Depolarization: Enough sodium ions flow into the cell to make the membrane potential become positive Repolarization: Enough sodium ions flow out of the cell to make the membrane potential become negative ...
Nerve activates contraction
... • In the resting state Na and K ion channels are closed. • Graded potentials collected in the cell body and dendrites arrive at axon hillock. • Voltage-gated Na+ channels have two gates. • Closed activation gates open rapidly in response to ...
... • In the resting state Na and K ion channels are closed. • Graded potentials collected in the cell body and dendrites arrive at axon hillock. • Voltage-gated Na+ channels have two gates. • Closed activation gates open rapidly in response to ...
12-nervoussystemintro - Alexmac
... of specialized neuron endings or specialized cells in close contact with neurons that convert the energy of the stimulus (sound, color, odor, etc.) to electrical signals within the nervous system. Sensory receptors, together with other cells, compose the major sense organs, including eyes, ears, nos ...
... of specialized neuron endings or specialized cells in close contact with neurons that convert the energy of the stimulus (sound, color, odor, etc.) to electrical signals within the nervous system. Sensory receptors, together with other cells, compose the major sense organs, including eyes, ears, nos ...