PNS/Reflexes
... IV. Adaptation - when you are exposed to a constant stimulus (ex, a scent), your perception of that stimulus can sometimes diminish over time. One of two things can happen to produce this effect A. Peripheral adaptation- some sensory neurons can adapt to constant stimuli; that is, they begin to requ ...
... IV. Adaptation - when you are exposed to a constant stimulus (ex, a scent), your perception of that stimulus can sometimes diminish over time. One of two things can happen to produce this effect A. Peripheral adaptation- some sensory neurons can adapt to constant stimuli; that is, they begin to requ ...
Nervous System Study Guide 1
... (a) axon, (b) cell body, (c) dendrites, (d) internodes, (e) myelin, (f) nodes of Ranvier, (g) synaptic terminals ...
... (a) axon, (b) cell body, (c) dendrites, (d) internodes, (e) myelin, (f) nodes of Ranvier, (g) synaptic terminals ...
Ch. 35.2
... stimulated by another neuron or by its environment The protein channels help ions pass in and out of the cell When positive ions flow in, gains a positive charge an then switches to a negative charge ACTION POTENTIAL One impulse causes another impulse at the next point on the membrane ...
... stimulated by another neuron or by its environment The protein channels help ions pass in and out of the cell When positive ions flow in, gains a positive charge an then switches to a negative charge ACTION POTENTIAL One impulse causes another impulse at the next point on the membrane ...
Synapse
... activated (by replacement of its GDP with GTP) → separates the α component from the G-protein. •The separated active α component can perform; 1. Opening specific ion channels e.g. 2nd- messenger gated K channels 2. Activation of particular enzymes→ catalyze the formation of the 2nd messengers, such ...
... activated (by replacement of its GDP with GTP) → separates the α component from the G-protein. •The separated active α component can perform; 1. Opening specific ion channels e.g. 2nd- messenger gated K channels 2. Activation of particular enzymes→ catalyze the formation of the 2nd messengers, such ...
HBNervous
... 1. Depolarization of the Axon terminal Opens Voltage-Gated Ca++ Channels - allowing Ca++ to rush INTO the cell down its concentration gradient 2. Increased Ca++ In the Synapse Causes Neurotransmitter Release - As Ca++ increases in the axon terminal, synaptic vesicles containing the neurotransmitter ...
... 1. Depolarization of the Axon terminal Opens Voltage-Gated Ca++ Channels - allowing Ca++ to rush INTO the cell down its concentration gradient 2. Increased Ca++ In the Synapse Causes Neurotransmitter Release - As Ca++ increases in the axon terminal, synaptic vesicles containing the neurotransmitter ...
2015-2016_1Semester_Exam2_140116
... Opening of voltage gated Ca+ ion channels Docking Exocytosis Receptor activation/ligand binding Re-uptake of NTs ...
... Opening of voltage gated Ca+ ion channels Docking Exocytosis Receptor activation/ligand binding Re-uptake of NTs ...
Alzheimer`s Disease and its Effects on the Central Nervous System
... an inhibitory signal. A neuron has synapses with thousands of other neurons, so it receives many signals of both types every second and integrates them. If it has received enough excitatory signals, it transmits a nerve impulse (Mader, 2004). Unlike most other cells in the body, which regenerate reg ...
... an inhibitory signal. A neuron has synapses with thousands of other neurons, so it receives many signals of both types every second and integrates them. If it has received enough excitatory signals, it transmits a nerve impulse (Mader, 2004). Unlike most other cells in the body, which regenerate reg ...
Neuron Function
... the positive direction is observed to about 40 mV (35 mV in human). This is followed by another rather rapid swing in the negative direction to a hyperpolarized -75 mV (-80 mV in human) Then the resting potential is reestablished ...
... the positive direction is observed to about 40 mV (35 mV in human). This is followed by another rather rapid swing in the negative direction to a hyperpolarized -75 mV (-80 mV in human) Then the resting potential is reestablished ...
HONORS BIOLOGY Chapter 28 Nervous Systems
... Synapses are junctions where signals are transmitted between Two neurons or between neurons and effector cells Electrical synapses ...
... Synapses are junctions where signals are transmitted between Two neurons or between neurons and effector cells Electrical synapses ...
File
... • Signals are sent from the axon terminal of one neuron (presynaptic cell) to the dendrite of a neighboring neuron (postsynaptic cell) by sending neurotransmitters across the synapse • Neurotransmitters bind to receptor proteins on the postsynaptic cell, which initiates transmission of signal ...
... • Signals are sent from the axon terminal of one neuron (presynaptic cell) to the dendrite of a neighboring neuron (postsynaptic cell) by sending neurotransmitters across the synapse • Neurotransmitters bind to receptor proteins on the postsynaptic cell, which initiates transmission of signal ...
Name
... _____ 1. Sensory receptors found in the skin, which are specialized to detect temperature, pressure changes and pain. _____ 2. Specialized cells that myelinate the fibers of neurons found in the PNS _____ 3. Junction or point of close contact between neurons. _____ 4. Bundle of nerve processes insid ...
... _____ 1. Sensory receptors found in the skin, which are specialized to detect temperature, pressure changes and pain. _____ 2. Specialized cells that myelinate the fibers of neurons found in the PNS _____ 3. Junction or point of close contact between neurons. _____ 4. Bundle of nerve processes insid ...
General Senses Complete
... Exteroceptors: classification of sensory receptors React to stimuli in the external environment Usually found close to the body surface Example: receptors in the skin, vision apparatus of the eye, receptors in the ear Interoceptors (visceroceptors): respond to stimuli within the body Are found in th ...
... Exteroceptors: classification of sensory receptors React to stimuli in the external environment Usually found close to the body surface Example: receptors in the skin, vision apparatus of the eye, receptors in the ear Interoceptors (visceroceptors): respond to stimuli within the body Are found in th ...
Biology Notes: The Nervous System and Neurons
... ReView (at the end of the PowerPoint you should be able to answer these questions) 1. What is the function of the nervous system? 2. List the 4 main parts and describe the purpose of the 4 main parts of a neuron. 3. The nervous system is divided into 2 parts. What are they and what do they incl ...
... ReView (at the end of the PowerPoint you should be able to answer these questions) 1. What is the function of the nervous system? 2. List the 4 main parts and describe the purpose of the 4 main parts of a neuron. 3. The nervous system is divided into 2 parts. What are they and what do they incl ...
NERVOUS SYSTEMS – FUNCTION AT THE CELLULAR LEVEL
... A graded potential is any electrical change from resting potential - opening of gated channels due to binding of neurotransmitters: ion movement in or out of dendrites or cell body change in membrane potential of cell body - amount of change varies (graded) depending on how many channels open and ...
... A graded potential is any electrical change from resting potential - opening of gated channels due to binding of neurotransmitters: ion movement in or out of dendrites or cell body change in membrane potential of cell body - amount of change varies (graded) depending on how many channels open and ...
file - Athens Academy
... In addition to helping us maintain our sanity, having an imbalance in this neurotransmitter plays a role in the development of Parkinson’s Disease. ...
... In addition to helping us maintain our sanity, having an imbalance in this neurotransmitter plays a role in the development of Parkinson’s Disease. ...
EXPLORING PSYCHOLOGY (7th Edition in Modules) David Myers
... • Action Potentials are based on movements of ions between the outside and inside of the cell • When an Action Potential occurs a molecular message is sent to neighboring neurons ...
... • Action Potentials are based on movements of ions between the outside and inside of the cell • When an Action Potential occurs a molecular message is sent to neighboring neurons ...
Activity of Spiking Neurons Stimulated by External Signals of
... processing system. This contrasts with conventional computers, in which a single processor executes a sequential series of instructions. A typical neuron consists of dendrites, soma and axon. Dendrites receive and deliver signals and act like an “input device”. Soma is the “central processing unit” ...
... processing system. This contrasts with conventional computers, in which a single processor executes a sequential series of instructions. A typical neuron consists of dendrites, soma and axon. Dendrites receive and deliver signals and act like an “input device”. Soma is the “central processing unit” ...
Neuron Structure
... • When THC binds to receptors, person feels high!!! • No THC in chocolate, but there are chemicals in choc that act like THC • You would have to eat 25 lbs of choc to get marijuana like effect • Choc also contains phenylethylamine, related to amphetamines • These raise blood pressure and cause blood ...
... • When THC binds to receptors, person feels high!!! • No THC in chocolate, but there are chemicals in choc that act like THC • You would have to eat 25 lbs of choc to get marijuana like effect • Choc also contains phenylethylamine, related to amphetamines • These raise blood pressure and cause blood ...
Molecular neuroscience
Molecular neuroscience is a branch of neuroscience that observes concepts in molecular biology applied to the nervous systems of animals. The scope of this subject primarily pertains to a reductionist view of neuroscience, considering topics such as molecular neuroanatomy, mechanisms of molecular signaling in the nervous system, the effects of genetics on neuronal development, and the molecular basis for neuroplasticity and neurodegenerative diseases. As with molecular biology, molecular neuroscience is a relatively new field that is considerably dynamic.