Introduction to the brain and behaviour
... brain structures that appear to be separated by a deep groove (longitudinal fissure) running from the front to back of the brain. They are connected at several points by strands of nerve tissue. They are referred to respectively as the left and right hemispheres. ...
... brain structures that appear to be separated by a deep groove (longitudinal fissure) running from the front to back of the brain. They are connected at several points by strands of nerve tissue. They are referred to respectively as the left and right hemispheres. ...
AP Practice unit 3 and 4
... 67. While mapping the motor cortex, researchers Foerster and Penfield found that A) although the mind's subsystems are localized in specific brain regions, the brain acts like a unified whole. B) damage to a specific area in the left frontal lobe disrupted speech ability. C) body areas requiring the ...
... 67. While mapping the motor cortex, researchers Foerster and Penfield found that A) although the mind's subsystems are localized in specific brain regions, the brain acts like a unified whole. B) damage to a specific area in the left frontal lobe disrupted speech ability. C) body areas requiring the ...
Chapter 11 Outline - CM
... Axolemma – plasma membrane that surrounds axon and its cytoplasm or axoplasm Substances may travel through axoplasm using one of two types of transport, which are together termed axonal transport or flow o Slow axonal transport – transports substances like cytoskeleton proteins from cell body throug ...
... Axolemma – plasma membrane that surrounds axon and its cytoplasm or axoplasm Substances may travel through axoplasm using one of two types of transport, which are together termed axonal transport or flow o Slow axonal transport – transports substances like cytoskeleton proteins from cell body throug ...
Muscle
... -The autonomic nervous system responds to a variety of sensory inputs: most sensory information from visceral organs reaches the brain by way of the vagus nerve. Visceral sensory information from head and neck enter the brain through the glossopharyngeal and facial nerves. These inputs synapse in th ...
... -The autonomic nervous system responds to a variety of sensory inputs: most sensory information from visceral organs reaches the brain by way of the vagus nerve. Visceral sensory information from head and neck enter the brain through the glossopharyngeal and facial nerves. These inputs synapse in th ...
Neurons and Glial Cells
... vertebrates but are found in insects where they stimulate muscles or glands. A bipolar neuron has one axon and one dendrite extending from the soma. An example of a bipolar neuron is a retinal bipolar cell, which receives signals from photoreceptor cells that are sensitive to light and transmits the ...
... vertebrates but are found in insects where they stimulate muscles or glands. A bipolar neuron has one axon and one dendrite extending from the soma. An example of a bipolar neuron is a retinal bipolar cell, which receives signals from photoreceptor cells that are sensitive to light and transmits the ...
The Autonomic Nervous System
... • Acetylcholine (ACh) is the neurotransmitter used by all preganglionic neurons. – It is also the neurotransmitter released from most parasympathetic postganglionic neurons. – Some sympathetic postganglionic neurons (those that innervate sweat glands and skeletal muscle blood vessels) release ACh. – ...
... • Acetylcholine (ACh) is the neurotransmitter used by all preganglionic neurons. – It is also the neurotransmitter released from most parasympathetic postganglionic neurons. – Some sympathetic postganglionic neurons (those that innervate sweat glands and skeletal muscle blood vessels) release ACh. – ...
The Brain and Addiction
... direction of movement). This process is important because it ensures that not too much dopamine remains in the synaptic cleft at any one time. Also point out that there are neighboring neurons that release another compound called a neuromodulator. Neuromodulators help to enhance or inhibit neurotran ...
... direction of movement). This process is important because it ensures that not too much dopamine remains in the synaptic cleft at any one time. Also point out that there are neighboring neurons that release another compound called a neuromodulator. Neuromodulators help to enhance or inhibit neurotran ...
Recording Action Potentials from Cockroach Mechanoreceptors
... Sensory (afferent) axons in the leg of a cockroach offer an excellent opportunity for observing action potentials and for studying important concepts in sensory physiology. Most of the largest sensory neurons detect movements of the spines ("bristles") on the leg. The long portion of the leg closest ...
... Sensory (afferent) axons in the leg of a cockroach offer an excellent opportunity for observing action potentials and for studying important concepts in sensory physiology. Most of the largest sensory neurons detect movements of the spines ("bristles") on the leg. The long portion of the leg closest ...
Remembering or Forgetting: The Lifetime of Memories
... by showing fear even if the danger is no longer present (the same way we fear the street even if cannot see the dog). If the mice are placed in a different, “safe” location, they show no fear. Some time ago, it was discovered that this fear memory is created in a certain part of the brain called the ...
... by showing fear even if the danger is no longer present (the same way we fear the street even if cannot see the dog). If the mice are placed in a different, “safe” location, they show no fear. Some time ago, it was discovered that this fear memory is created in a certain part of the brain called the ...
1. nervous system
... being covered or constrained by a multilayer protective membrane of connective tissue called the meninges. The CNS is supported by a variety of cells, called glial cells, which perform very specific functions to protect, or to enhance its functioning (Fig. 1-6). The supportive activities are of vari ...
... being covered or constrained by a multilayer protective membrane of connective tissue called the meninges. The CNS is supported by a variety of cells, called glial cells, which perform very specific functions to protect, or to enhance its functioning (Fig. 1-6). The supportive activities are of vari ...
Physiology2 - Sheet#2 - Dr.Loai Alzgoul
... Physiology2 - Sheet#2 - Dr.Loai Alzgoul - Done By: Maryam Breik The brain receives all the sensations from the whole body (zlma msh'3ol :P ) , but its response differs according to the type of sensation. Some senses go through slow sensation pathway, while others take the fast sensation pathway. Wh ...
... Physiology2 - Sheet#2 - Dr.Loai Alzgoul - Done By: Maryam Breik The brain receives all the sensations from the whole body (zlma msh'3ol :P ) , but its response differs according to the type of sensation. Some senses go through slow sensation pathway, while others take the fast sensation pathway. Wh ...
SENSORY AND MOTOR SYSTEMS: REFLEXES
... DETECTOR(SENSORY FIBERS) • TYPE Ia NERVE FIBERS: TRANSMIT INFORMATION ABOUT LENGTH AND VELOCITY TO THE CNS • TYPE II NERVE FIBERS:TRANSMIT ...
... DETECTOR(SENSORY FIBERS) • TYPE Ia NERVE FIBERS: TRANSMIT INFORMATION ABOUT LENGTH AND VELOCITY TO THE CNS • TYPE II NERVE FIBERS:TRANSMIT ...
side
... occipital, and parietal lobes - Receives input from all sensory association areas and stores complex memory patterns associated with sensation - Sends assessment of sensations to prefrontal cortex which adds emotional overtones - Injury to gnostic area causes one to become an imbecile - interpretati ...
... occipital, and parietal lobes - Receives input from all sensory association areas and stores complex memory patterns associated with sensation - Sends assessment of sensations to prefrontal cortex which adds emotional overtones - Injury to gnostic area causes one to become an imbecile - interpretati ...
addiction
... also reflect enduring genetic changes. Drugs can act as DNA switches, turning genes on or off. In lab animals, for instance, bingeing on cocaine turns down the activity of a gene that makes a dopamine receptor, finds Dr. Mary Jeanne Kreek of Rockefeller University. If that gene remains chronically i ...
... also reflect enduring genetic changes. Drugs can act as DNA switches, turning genes on or off. In lab animals, for instance, bingeing on cocaine turns down the activity of a gene that makes a dopamine receptor, finds Dr. Mary Jeanne Kreek of Rockefeller University. If that gene remains chronically i ...
Section: Nervous system
... THE SPINAL CORD 32. The spinal cord is protected by _______________ . 33. The spinal cord is made of ________________ and ________________. 34. Nerve fibers in your spinal cord allow your brain to communicate with your _____________ nervous system. 35. A spinal cord injury may block all information ...
... THE SPINAL CORD 32. The spinal cord is protected by _______________ . 33. The spinal cord is made of ________________ and ________________. 34. Nerve fibers in your spinal cord allow your brain to communicate with your _____________ nervous system. 35. A spinal cord injury may block all information ...
RHCh2 - HomePage Server for UT Psychology
... enables vastly greater transmission speed of neutral impulses ...
... enables vastly greater transmission speed of neutral impulses ...
chapter 2 - Forensic Consultation
... A Tour Through The Brain: The Motor Cortex and Somatosensory Cortex ...
... A Tour Through The Brain: The Motor Cortex and Somatosensory Cortex ...
peripheral nervous system
... A Tour Through The Brain: The Motor Cortex and Somatosensory Cortex ...
... A Tour Through The Brain: The Motor Cortex and Somatosensory Cortex ...
The Brain The brain is responsible for everything we think, feel and
... Parietal Lobe: receives and processes sensory information from the body and other sensory areas in the brain; also involved in spatial perception and memory. The parietal lobe allows us to process and perceive the sensations of touch, temperature, pressure and pain. These sensations are processed in ...
... Parietal Lobe: receives and processes sensory information from the body and other sensory areas in the brain; also involved in spatial perception and memory. The parietal lobe allows us to process and perceive the sensations of touch, temperature, pressure and pain. These sensations are processed in ...
Chapter 2 - Forensic Consultation
... up and down, a wave moves down an axon although it is only made up of ion exchanges moving in and out. ...
... up and down, a wave moves down an axon although it is only made up of ion exchanges moving in and out. ...
The Physiology of Memory Craig E. Geis, MBA, Management
... Thus when the chemicals are activated across synapses in the brain, the message is communicated to every part of your body by chemotaxis, a process that allows cells to communicate by “neurotransmitters” or remote travel using blood and cerebrospinal fluid. ...
... Thus when the chemicals are activated across synapses in the brain, the message is communicated to every part of your body by chemotaxis, a process that allows cells to communicate by “neurotransmitters” or remote travel using blood and cerebrospinal fluid. ...
Heart
... • thin semi-permeable cover surrounding the cell • consists from one lipid double-layer and proteins anchored in there lipid double-layer … gives basic physical features to plasmalema … on / in: floating or anchored proteins (ion channels) proteins … anchored in lipid double-layer in different ways ...
... • thin semi-permeable cover surrounding the cell • consists from one lipid double-layer and proteins anchored in there lipid double-layer … gives basic physical features to plasmalema … on / in: floating or anchored proteins (ion channels) proteins … anchored in lipid double-layer in different ways ...
Human Anatomy Unit 6 – Chapter 8 – Nervous System Work List
... The Moving Impulse A neuron remains in its resting state until it receives a stimulus large enough to start a nerve impulse. The impulse causes a movement of ions across the cell membrane. An impulse begins when a neuron is stimulated by another neuron or by the environment. Once it begins, the impu ...
... The Moving Impulse A neuron remains in its resting state until it receives a stimulus large enough to start a nerve impulse. The impulse causes a movement of ions across the cell membrane. An impulse begins when a neuron is stimulated by another neuron or by the environment. Once it begins, the impu ...
Synaptic gating
Synaptic gating is the ability of neural circuits to gate inputs by either suppressing or facilitating specific synaptic activity. Selective inhibition of certain synapses has been studied thoroughly (see Gate theory of pain), and recent studies have supported the existence of permissively gated synaptic transmission. In general, synaptic gating involves a mechanism of central control over neuronal output. It includes a sort of gatekeeper neuron, which has the ability to influence transmission of information to selected targets independently of the parts of the synapse upon which it exerts its action (see also neuromodulation).Bistable neurons have the ability to oscillate between a hyperpolarized (down state) and a depolarized (up state) resting membrane potential without firing an action potential. These neurons can thus be referred to as up/down neurons. According to one model, this ability is linked to the presence of NMDA and AMPA glutamate receptors. External stimulation of the NMDA receptors is responsible for moving the neuron from the down state to the up state, while the stimulation of AMPA receptors allows the neuron to reach and surpass the threshold potential. Neurons that have this bistable ability have the potential to be gated because outside gatekeeper neurons can modulate the membrane potential of the gated neuron by selectively shifting them from the up state to the down state. Such mechanisms have been observed in the nucleus accumbens, with gatekeepers originating in the cortex, thalamus and basal ganglia.