Vision + Desensitization
... compounds and ions by the tongue Hearing-The detection of sound (or pressure wave in the air) Touch- the detection of changes in pressure, temp. and other factors by the skin ...
... compounds and ions by the tongue Hearing-The detection of sound (or pressure wave in the air) Touch- the detection of changes in pressure, temp. and other factors by the skin ...
Draw and describe the circuitry of a cerebellar nucleus: Include
... (simple spike) to be produced. The simple spike frequency can be high (10-50/sec). In summary, the Purkinje cells have 2 types of input. The first (cf) are from a single source, are directly associated in a 1:1 ratio with the Purkinje cell, and produce a powerful output. The second (mf) are from man ...
... (simple spike) to be produced. The simple spike frequency can be high (10-50/sec). In summary, the Purkinje cells have 2 types of input. The first (cf) are from a single source, are directly associated in a 1:1 ratio with the Purkinje cell, and produce a powerful output. The second (mf) are from man ...
PowerPoint Chapter 29
... 3. Transmission within a neuron a. Action potential- moving electrical impulse created by stimulus b. Channels for ions open and close causing moving area of positively charged membrane to move down axon ...
... 3. Transmission within a neuron a. Action potential- moving electrical impulse created by stimulus b. Channels for ions open and close causing moving area of positively charged membrane to move down axon ...
SBI4U Homeostasis Name:
... 33. Body temperature in endotherms is generally maintained within a narrow range. Describe two situations where this is not the case. Explain how the body attempts to protect itself in these situations. [4] Hypothermia (not hyperthermia) - when body temperature drops below normal levels. The body sh ...
... 33. Body temperature in endotherms is generally maintained within a narrow range. Describe two situations where this is not the case. Explain how the body attempts to protect itself in these situations. [4] Hypothermia (not hyperthermia) - when body temperature drops below normal levels. The body sh ...
Ch 2 Physiology - Texas A&M University
... How do neurons talk to each other? • Neurons talk to each like a computer does. • Neurons talk to each other by sending electrical signals. ...
... How do neurons talk to each other? • Neurons talk to each like a computer does. • Neurons talk to each other by sending electrical signals. ...
Nervous Regulation
... When a neuron is stimulated (heat, light, touch, pain etc.) ________ ______________cross the neuron’s membrane. During the resting potential the ____________________ do not cross the membrane because the protein channels are _________________. Notice in the diagram (b) that the green protein cha ...
... When a neuron is stimulated (heat, light, touch, pain etc.) ________ ______________cross the neuron’s membrane. During the resting potential the ____________________ do not cross the membrane because the protein channels are _________________. Notice in the diagram (b) that the green protein cha ...
Local Anesthetics
... If the resting potential encounters the proper chemical, mechanical or electrical stimuli to reduce the membrane potential to less than -55 mV then an action potential is produced that allows the influx of sodium ions. LA act here to block the Na influx. The influx allows the membrane potential to f ...
... If the resting potential encounters the proper chemical, mechanical or electrical stimuli to reduce the membrane potential to less than -55 mV then an action potential is produced that allows the influx of sodium ions. LA act here to block the Na influx. The influx allows the membrane potential to f ...
Principles of Neural Science
... transmitter, some operate purely by electrical means. Once the fine structure of synapses was made visible with the electron microscope, chemical and electrical synapses were found to have different morphologies. At chemical synapses neurons are separated completely by a small space, the synaptic cl ...
... transmitter, some operate purely by electrical means. Once the fine structure of synapses was made visible with the electron microscope, chemical and electrical synapses were found to have different morphologies. At chemical synapses neurons are separated completely by a small space, the synaptic cl ...
Introduction to multi-electrode physiology
... • Temporally precise in vivo control of intracellular signaling • Potential control of epileptiform activity • High-speed mapping of synaptic connectivity • Dissection of a behavioral module in the spinal cord ...
... • Temporally precise in vivo control of intracellular signaling • Potential control of epileptiform activity • High-speed mapping of synaptic connectivity • Dissection of a behavioral module in the spinal cord ...
ANPS 019 Black 11-14
... Taste intimately linked to sense of smell The number of taste buds begin declining rapidly by age 50 Sense of smell declines with ageing Elderly aren’t motivated to eat because food has little taste PARKINSON’S ANOSMIA In Parkinson’s disease, the incidence of smell loss is greater than the incidence ...
... Taste intimately linked to sense of smell The number of taste buds begin declining rapidly by age 50 Sense of smell declines with ageing Elderly aren’t motivated to eat because food has little taste PARKINSON’S ANOSMIA In Parkinson’s disease, the incidence of smell loss is greater than the incidence ...
11-1 FUNCTIONS OF THE NERVOUS SYSTEM 1. Sensory input
... the outside of the plasma membrane becomes slightly more positive. Thus the Na+ - K+ pump contributes to the hyperpolarization of the plasma membrane. Changing the Resting Membrane Potential 1. The resting membrane potential can depolarize or hyperpolarize. FIGURE 11.15 A. Depolarization occurs when ...
... the outside of the plasma membrane becomes slightly more positive. Thus the Na+ - K+ pump contributes to the hyperpolarization of the plasma membrane. Changing the Resting Membrane Potential 1. The resting membrane potential can depolarize or hyperpolarize. FIGURE 11.15 A. Depolarization occurs when ...
Special Sense
... • The oval window vibrates causing the hair cells of the Organ of Corti to vibrate • The vibration causes the round window to bulge outward and absorb the sound • An action potential develops in the cochlear ...
... • The oval window vibrates causing the hair cells of the Organ of Corti to vibrate • The vibration causes the round window to bulge outward and absorb the sound • An action potential develops in the cochlear ...
The Nanostructure of the Nervous System and the Impact
... gradients over long time scales, not over the millisecond time scale of an individual action potential. In fact, several thousand action potentials can occur following the chemical inactivation of the Na+-K+-ATPase pumps before any significant effect on the amplitude of the action potential can be m ...
... gradients over long time scales, not over the millisecond time scale of an individual action potential. In fact, several thousand action potentials can occur following the chemical inactivation of the Na+-K+-ATPase pumps before any significant effect on the amplitude of the action potential can be m ...
BIOL 273 Midterm #1 Notes
... The membrane potential of a cell can be changed by either having the potassium concentration gradient changed (so there is an imbalance, and more potassium has to move across to correct this) or having ion permeabilities change (so that other ions can get in on the action, baby!) o ...
... The membrane potential of a cell can be changed by either having the potassium concentration gradient changed (so there is an imbalance, and more potassium has to move across to correct this) or having ion permeabilities change (so that other ions can get in on the action, baby!) o ...
The Nervous System
... • If VM reaches threshold, Na+ channels open and Na+ influx ensues, depolarizing the cell and causing the VM to increase. This is the rising phase of an AP. • Eventually, the Na+ channel will have inactivated and the K+ channels will be open. Now, K+ effluxes and repolarization occurs. This is the f ...
... • If VM reaches threshold, Na+ channels open and Na+ influx ensues, depolarizing the cell and causing the VM to increase. This is the rising phase of an AP. • Eventually, the Na+ channel will have inactivated and the K+ channels will be open. Now, K+ effluxes and repolarization occurs. This is the f ...
The peripheral auditory system
... • Protects inner ear from sudden loud noises – Takes about 1/10s, so cannot protect against very loud, very sudden noises ...
... • Protects inner ear from sudden loud noises – Takes about 1/10s, so cannot protect against very loud, very sudden noises ...
Chapter 48 Objective Questions
... 11. Explain why the membrane potential of a resting neuron is typically about -70 mV. 12. Explain the role of the sodium-potassium pump. 13. Distinguish between gated and ungated ion channels and between chemically gated ion channels and voltage-gated ion channels. 14. Define a graded potential and ...
... 11. Explain why the membrane potential of a resting neuron is typically about -70 mV. 12. Explain the role of the sodium-potassium pump. 13. Distinguish between gated and ungated ion channels and between chemically gated ion channels and voltage-gated ion channels. 14. Define a graded potential and ...
An Overview of Nervous Systems 1. Compare the two coordinating
... 11. Explain why the membrane potential of a resting neuron is typically about -70 mV. 12. Explain the role of the sodium-potassium pump. 13. Distinguish between gated and ungated ion channels and between chemically gated ion channels and voltage-gated ion channels. 14. Define a graded potential and ...
... 11. Explain why the membrane potential of a resting neuron is typically about -70 mV. 12. Explain the role of the sodium-potassium pump. 13. Distinguish between gated and ungated ion channels and between chemically gated ion channels and voltage-gated ion channels. 14. Define a graded potential and ...
File
... synapses to make it more efficient During adolescence your brain has a major tidy-up and gets rid of lots of ...
... synapses to make it more efficient During adolescence your brain has a major tidy-up and gets rid of lots of ...
11 Func[ons of the Nervous System Divisions of the Nervous System
... – Myelin sheath gaps between adjacent Schwann cells – Sites where axon collaterals can emerge ...
... – Myelin sheath gaps between adjacent Schwann cells – Sites where axon collaterals can emerge ...
Stimulating nerve cells with laser precision - Exploration
... the process works and Photo by Dana Johnson that it is safe, they are turning their attention Pete Konrad during surgery to studying the exact mechanisms behind the stimulation effects. The most likely candidates, Jansen and Wells say, include a photothermal or mechanical effect, or perhaps a combin ...
... the process works and Photo by Dana Johnson that it is safe, they are turning their attention Pete Konrad during surgery to studying the exact mechanisms behind the stimulation effects. The most likely candidates, Jansen and Wells say, include a photothermal or mechanical effect, or perhaps a combin ...
Gloster Aaron
... Biology/NS&B 245: Neurophysiology Gloster Aaron Fall 2016 TuesThurs 10:20-11:40 AM ...
... Biology/NS&B 245: Neurophysiology Gloster Aaron Fall 2016 TuesThurs 10:20-11:40 AM ...
Electrophysiology
Electrophysiology (from Greek ἥλεκτρον, ēlektron, ""amber"" [see the etymology of ""electron""]; φύσις, physis, ""nature, origin""; and -λογία, -logia) is the study of the electrical properties of biological cells and tissues. It involves measurements of voltage change or electric current on a wide variety of scales from single ion channel proteins to whole organs like the heart. In neuroscience, it includes measurements of the electrical activity of neurons, and particularly action potential activity. Recordings of large-scale electric signals from the nervous system such as electroencephalography, may also be referred to as electrophysiological recordings.