It takes all kinds to make a brain
... from ORNs. To draw an analogy, your ability to reconstruct the movie depended on the fact that your friends’ collective interests were a good match for that movie. Similarly, the ability of mitral cells to encode an odor stimulus may depend on how well their filters match the properties of ORN input ...
... from ORNs. To draw an analogy, your ability to reconstruct the movie depended on the fact that your friends’ collective interests were a good match for that movie. Similarly, the ability of mitral cells to encode an odor stimulus may depend on how well their filters match the properties of ORN input ...
History of Psychology
... Reaction forms when terminal buttons of neuron A are stimulated and release neurotransmitters into the synapse. o Neurotransmitters fit into receptor sites of neuron B dendrites o When enough neurotransmitters are received that the THRESHOLD is reached, neuron B becomes permeable and negatively char ...
... Reaction forms when terminal buttons of neuron A are stimulated and release neurotransmitters into the synapse. o Neurotransmitters fit into receptor sites of neuron B dendrites o When enough neurotransmitters are received that the THRESHOLD is reached, neuron B becomes permeable and negatively char ...
Notes of Neuronal Firing
... Cell body (soma) - Contains the nucleus and most of the cell's organelles. Dendrites - Processes that branch off the cell body and receive input from other neurons at specialized junctions called synapses. The cell body also receives this input. Axons (nerve fiber) - Processes that send information. ...
... Cell body (soma) - Contains the nucleus and most of the cell's organelles. Dendrites - Processes that branch off the cell body and receive input from other neurons at specialized junctions called synapses. The cell body also receives this input. Axons (nerve fiber) - Processes that send information. ...
Chapter 12 Nervous System
... b. carry info away from cell body c. often myelinated by a white waxy sheath 3. path of information: excites nerve impulse stimulus → dendrite → cell body → axon ...
... b. carry info away from cell body c. often myelinated by a white waxy sheath 3. path of information: excites nerve impulse stimulus → dendrite → cell body → axon ...
Skeletal System
... The nervous system is the master controlling and communicating system of the body It is responsible for all behavior Along with the endocrine system it is responsible for regulating and ...
... The nervous system is the master controlling and communicating system of the body It is responsible for all behavior Along with the endocrine system it is responsible for regulating and ...
Chapter 11 Efferent Division: Autonomic and Somatic Motor Control
... Autonomic Synapse or Neuroeffector Junction (Figure 11-8, p. 392) Neurotransmitter release can be modulated here by hormones and paracrines (e.g. histamine) which can either facilitate or inhibit neurotransmitter release Some preganglionic neurons co-secrete neuropeptides along with ACh The peptide ...
... Autonomic Synapse or Neuroeffector Junction (Figure 11-8, p. 392) Neurotransmitter release can be modulated here by hormones and paracrines (e.g. histamine) which can either facilitate or inhibit neurotransmitter release Some preganglionic neurons co-secrete neuropeptides along with ACh The peptide ...
Powerpoint
... Sensory Input: Monitor both external and internal environments. Integration: Process the information and often integrate it with stored information. Motor output: If necessary, signal effector organs to make an appropriate response. ...
... Sensory Input: Monitor both external and internal environments. Integration: Process the information and often integrate it with stored information. Motor output: If necessary, signal effector organs to make an appropriate response. ...
IA_CogCore
... reversible reduction in firing rate to the cell’s optimal stimulus. • Top down effect is greatest for stimuli of low contrast. If the stimulus is easy to see when it is not moving, ...
... reversible reduction in firing rate to the cell’s optimal stimulus. • Top down effect is greatest for stimuli of low contrast. If the stimulus is easy to see when it is not moving, ...
The Nervous System
... Impulses that go to the brain are? Ascending or Descending The gaps between the myelin in a neuron are called? ________________ The gaps that exist between two neurons are called _____________________ The part of the neuron where the nucleus is found is the __________________ What is “fight or fligh ...
... Impulses that go to the brain are? Ascending or Descending The gaps between the myelin in a neuron are called? ________________ The gaps that exist between two neurons are called _____________________ The part of the neuron where the nucleus is found is the __________________ What is “fight or fligh ...
2.2.1 Neuron
... dial 911. Your heart races as you run out in the street to see if you can be of any help. So much is happening at one time, you feel like your brain is on overload. Just how does your nervous system deal with so much information at one time? Did you realize that a big part of communication between a ...
... dial 911. Your heart races as you run out in the street to see if you can be of any help. So much is happening at one time, you feel like your brain is on overload. Just how does your nervous system deal with so much information at one time? Did you realize that a big part of communication between a ...
Where is Pain Percieved?
... Pain is an inescapable sensation that every human being has experienced at least once in their lifetimes. The sensation of pain has two ways of being graded on its severity. The first is the objective intensity of pain, and the second is the subjective pain that the subject feels. Pain is one of the ...
... Pain is an inescapable sensation that every human being has experienced at least once in their lifetimes. The sensation of pain has two ways of being graded on its severity. The first is the objective intensity of pain, and the second is the subjective pain that the subject feels. Pain is one of the ...
Why so many steps?
... During signal transduction, calcium can be released into the cytoplasm: Transduction ...
... During signal transduction, calcium can be released into the cytoplasm: Transduction ...
PR_161115_Inaktive_Gehirnzellen_E
... in live organisms. This allows recording action potentials from these neurons while they work, and while simultaneously identifying the cells that the recordings are taken from for later analysis. During this analysis, morphological traits of the analysed cells are identified, most importantly their ...
... in live organisms. This allows recording action potentials from these neurons while they work, and while simultaneously identifying the cells that the recordings are taken from for later analysis. During this analysis, morphological traits of the analysed cells are identified, most importantly their ...
Notes: Nervous System PPT 1
... Oligodendrocytes - support and insulate axons Astrocytes -regulate transmission of electrical impulses in brain. Microglia -mediate immune responses in CNS by acting as macrophages, clearing cellular debris and dead neurons from nervous tissue through the process of phagocytosis Ependymal Cells - li ...
... Oligodendrocytes - support and insulate axons Astrocytes -regulate transmission of electrical impulses in brain. Microglia -mediate immune responses in CNS by acting as macrophages, clearing cellular debris and dead neurons from nervous tissue through the process of phagocytosis Ependymal Cells - li ...
Drugs Acting on the Central and Peripheral Nervous
... can be extremely tiny, or it can extend for several feet. The axon carries information from a nerve to be transmitted to effector cells—cells stimulated by a nerve, which may include a muscle, gland, or another nerve. This transmission occurs at the end of the axon, where the axon branches out in wh ...
... can be extremely tiny, or it can extend for several feet. The axon carries information from a nerve to be transmitted to effector cells—cells stimulated by a nerve, which may include a muscle, gland, or another nerve. This transmission occurs at the end of the axon, where the axon branches out in wh ...
Taste & Smell Pre-lab Web questions
... 8.Describe the path odor molecules take from inhalation to behavior. • Odor molecules entering the nose are thought to be recognized by receptors found in cilia of olfactory neurons. • Neurons with specific receptors are arranged randomly within zones in the olfactory lining of the nasal cavity. • ...
... 8.Describe the path odor molecules take from inhalation to behavior. • Odor molecules entering the nose are thought to be recognized by receptors found in cilia of olfactory neurons. • Neurons with specific receptors are arranged randomly within zones in the olfactory lining of the nasal cavity. • ...
Chapter 40
... A. Cnidarians have a nerve net B. Echinoderms have a radial nervous system C. Bilaterally symmetric animals have a bilateral nervous system 1. Increased number of nerve cells 2. Concentration of nerve cells into ganglia and brains, nerves, and nerve cords 3. Specialized function into peripheral affe ...
... A. Cnidarians have a nerve net B. Echinoderms have a radial nervous system C. Bilaterally symmetric animals have a bilateral nervous system 1. Increased number of nerve cells 2. Concentration of nerve cells into ganglia and brains, nerves, and nerve cords 3. Specialized function into peripheral affe ...
Addictive Drug Use
... Sensory Input: Monitor both external and internal environments. Integration: Process the information and often integrate it with stored information. Motor output: If necessary, signal effector organs to make an appropriate response. ...
... Sensory Input: Monitor both external and internal environments. Integration: Process the information and often integrate it with stored information. Motor output: If necessary, signal effector organs to make an appropriate response. ...
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.