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Part 2 of Unit Test 4
... Question 1: Nervous systems of animals contain thousands of neurons, all needing to quickly and effectively communicate with one another to function properly. In four sentences or less, relate the 3 steps of a signal transduction pathway to the process of neural communication across the synapse from ...
... Question 1: Nervous systems of animals contain thousands of neurons, all needing to quickly and effectively communicate with one another to function properly. In four sentences or less, relate the 3 steps of a signal transduction pathway to the process of neural communication across the synapse from ...
Sensory Systems
... The number of ommatidia per eye varies from species to species with only a few in ants, to 800 in fruit flies, to as many as 10,000 ommatidia in the compound eye of the horsefly. The compound eye provides information about patterns in the environment and is very good at detecting movement. The worl ...
... The number of ommatidia per eye varies from species to species with only a few in ants, to 800 in fruit flies, to as many as 10,000 ommatidia in the compound eye of the horsefly. The compound eye provides information about patterns in the environment and is very good at detecting movement. The worl ...
notes - Other Places you want to go
... Neuroglia – support neurons by preforming various tasks so neurons can do their job **Know Figure 16.3 for test** (see Neuron handout) Parts of the Neuron: Dendrites – conduct electrical signals towards the neuron’s cell body Axons – direct electrical signals away from the neuron’s cell body Tas ...
... Neuroglia – support neurons by preforming various tasks so neurons can do their job **Know Figure 16.3 for test** (see Neuron handout) Parts of the Neuron: Dendrites – conduct electrical signals towards the neuron’s cell body Axons – direct electrical signals away from the neuron’s cell body Tas ...
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 ...
Neurons - Holterman
... 5. The resting potential is the difference in charge between the inside and the outside of the neuron. Because there are fewer (positive) charges inside the cell, the voltage is -70mV. Stimulating the Neuron 6. Sensory neurons are stimulated by the receptors (example: when rhodopsin breaks in photor ...
... 5. The resting potential is the difference in charge between the inside and the outside of the neuron. Because there are fewer (positive) charges inside the cell, the voltage is -70mV. Stimulating the Neuron 6. Sensory neurons are stimulated by the receptors (example: when rhodopsin breaks in photor ...
32. Sensory organs. organ of smell and taste
... All sensory receptors send info to the CNS via an action potential… • At the CNS, info is routed according to the stimulus and its location • The stronger the stimulus, the higher the frequency of action potentials • Some receptors adapt, that is their sensitivity to a stimulus is reduced if the st ...
... All sensory receptors send info to the CNS via an action potential… • At the CNS, info is routed according to the stimulus and its location • The stronger the stimulus, the higher the frequency of action potentials • Some receptors adapt, that is their sensitivity to a stimulus is reduced if the st ...
Candy Neurons
... Draw a picture of the neuron (with direction of a signal indicated) below: (must have candy neuron checked by me BEFORE DRAWING) ...
... Draw a picture of the neuron (with direction of a signal indicated) below: (must have candy neuron checked by me BEFORE DRAWING) ...
Nervous and Endocrine Systems
... A progressive disease that destroys memory and other important mental ...
... A progressive disease that destroys memory and other important mental ...
Chapter 2: Introduction to Physiology of Perception
... • Neurotransmitters are: • released by the presynaptic neuron from vesicles. • received by the postsynaptic neuron on receptor sites. • matched like a key to a lock into specific receptor sites. ...
... • Neurotransmitters are: • released by the presynaptic neuron from vesicles. • received by the postsynaptic neuron on receptor sites. • matched like a key to a lock into specific receptor sites. ...
Lecture 5 Transmitters and receptors lecture 2015
... ATP is made from adenosine and packed into large dense core or small synaptic type vesicles. ATP is released along with another transmitter, or by itself. After release, ATPase and other enzymes break it down and adenosine can be taken up again. In this example, ATP, norepinephrine, and neuropeptide ...
... ATP is made from adenosine and packed into large dense core or small synaptic type vesicles. ATP is released along with another transmitter, or by itself. After release, ATPase and other enzymes break it down and adenosine can be taken up again. In this example, ATP, norepinephrine, and neuropeptide ...
What is the Nervous System?
... What is the Nervous System? Complex communication network – how your body/brain communicate ...
... What is the Nervous System? Complex communication network – how your body/brain communicate ...
Chapter 14 - The Nervous System: Organization
... Excitatory and inhibitory postsynaptic potentials • A synaptic potential can be excitatory (they depolarize) or inhibitory (they polarize). Some neurotransmitters depolarize and others polarize. • There are more than 50 different neurotransmitters. • In the brain and spinal cord, hundreds of excita ...
... Excitatory and inhibitory postsynaptic potentials • A synaptic potential can be excitatory (they depolarize) or inhibitory (they polarize). Some neurotransmitters depolarize and others polarize. • There are more than 50 different neurotransmitters. • In the brain and spinal cord, hundreds of excita ...
No Slide Title
... reflex may not be produced, however if several small pinches are rapidly applied they trigger a reflex. This is called temporal summation. ...
... reflex may not be produced, however if several small pinches are rapidly applied they trigger a reflex. This is called temporal summation. ...
Autonomic Nervous System
... of the nervous system • Specialized to conduct information from one part of the body to another • There are many, many different types of neurons but most have certain structural and functional characteristics in common: - Cell body (soma) - One or more specialized, slender processes (axons/dendrite ...
... of the nervous system • Specialized to conduct information from one part of the body to another • There are many, many different types of neurons but most have certain structural and functional characteristics in common: - Cell body (soma) - One or more specialized, slender processes (axons/dendrite ...
Developer Notes
... message? Na+ channels further along the neuron will open in response to a change in voltage (they are called “voltage-gated channels”). So one action potential causes adjacent Na+ channels to open, this causes another action potential that causes more channels to open…and the chain reaction keeps go ...
... message? Na+ channels further along the neuron will open in response to a change in voltage (they are called “voltage-gated channels”). So one action potential causes adjacent Na+ channels to open, this causes another action potential that causes more channels to open…and the chain reaction keeps go ...
A2.2.2.SecretSignals - jj-sct
... to send messages in a hurry, allowing a race car driver to react while driving at intense speeds or a tennis player to return the lightning-fast serve of an opponent. We have looked at the structure of a neuron and we know that the nerve cell can generate and send an electrical signal. This signal t ...
... to send messages in a hurry, allowing a race car driver to react while driving at intense speeds or a tennis player to return the lightning-fast serve of an opponent. We have looked at the structure of a neuron and we know that the nerve cell can generate and send an electrical signal. This signal t ...
Nervous System
... 3. There is a synapse from the stretch receptor onto a spinal interneuron. Its axon has at least two synapses: one excites a motorneuron connecting to an extensor muscle and one inhibits the motorneuron for the opponent flexor muscle. ...
... 3. There is a synapse from the stretch receptor onto a spinal interneuron. Its axon has at least two synapses: one excites a motorneuron connecting to an extensor muscle and one inhibits the motorneuron for the opponent flexor muscle. ...
Candy Neurons Activity
... Students work in pairs of two to create their candy neurons. They must be labeled and contain all key parts. Once they are done they must link of their diagram with another two groups. When you have a group of 6 come by for some direct instruction showing that neurons fire DAT way. Dendrites t ...
... Students work in pairs of two to create their candy neurons. They must be labeled and contain all key parts. Once they are done they must link of their diagram with another two groups. When you have a group of 6 come by for some direct instruction showing that neurons fire DAT way. Dendrites t ...
Stimulus (physiology)
In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment. The ability of an organism or organ to respond to external stimuli is called sensitivity. When a stimulus is applied to a sensory receptor, it normally elicits or influences a reflex via stimulus transduction. These sensory receptors can receive information from outside the body, as in touch receptors found in the skin or light receptors in the eye, as well as from inside the body, as in chemoreceptors and mechanorceptors. An internal stimulus is often the first component of a homeostatic control system. External stimuli are capable of producing systemic responses throughout the body, as in the fight-or-flight response. In order for a stimulus to be detected with high probability, its level must exceed the absolute threshold; if a signal does reach threshold, the information is transmitted to the central nervous system (CNS), where it is integrated and a decision on how to react is made. Although stimuli commonly cause the body to respond, it is the CNS that finally determines whether a signal causes a reaction or not.