Special Senses
... 2. Cristae: hair cells are covered by a thick gelatinous substance; provide information about movement of the head. Located in ampullae. 3. Maculae: Hair cells covered by a thick gelatinous substance, which is in turn covered by calcium carbonate rocks (otoliths). The otoliths press on the hair cell ...
... 2. Cristae: hair cells are covered by a thick gelatinous substance; provide information about movement of the head. Located in ampullae. 3. Maculae: Hair cells covered by a thick gelatinous substance, which is in turn covered by calcium carbonate rocks (otoliths). The otoliths press on the hair cell ...
CHAPTER OUTLINE
... The ear functions in hearing as well as balance (equilibrium). The sensory receptors for both of these are mechanoreceptors located in the inner ear that are sensitive to mechanical stimulation. Anatomy of the Ear The outer ear collects and funnels sound into the auditory canal. The middle ear trans ...
... The ear functions in hearing as well as balance (equilibrium). The sensory receptors for both of these are mechanoreceptors located in the inner ear that are sensitive to mechanical stimulation. Anatomy of the Ear The outer ear collects and funnels sound into the auditory canal. The middle ear trans ...
Document
... neurons, and the gaps between them, Cajal's idea was confirmed. Neurons are cells that are specialized to rapidly respond to signals and to quickly send signals of their own. For many years communication in the nervous system was thought to take place only between neurons, but this neuron doctrine h ...
... neurons, and the gaps between them, Cajal's idea was confirmed. Neurons are cells that are specialized to rapidly respond to signals and to quickly send signals of their own. For many years communication in the nervous system was thought to take place only between neurons, but this neuron doctrine h ...
RetinaCircuts
... Figure 3.10 Circuit to explain the Mach band effect based on lateral inhibition. The circuit works like the one for the Hermann grid in Figure 3.6, with each bipolar cell sending inhibition to its neighbors. If we know the initial output of each receptor and the amount of lateral inhibition, we can ...
... Figure 3.10 Circuit to explain the Mach band effect based on lateral inhibition. The circuit works like the one for the Hermann grid in Figure 3.6, with each bipolar cell sending inhibition to its neighbors. If we know the initial output of each receptor and the amount of lateral inhibition, we can ...
Slides
... Lens placode (tissue thickening) induced in head ectoderm by close contact with neural (brain) tissue The developing lens induces brain to form the optic cup (Reciprocal Induction) ...
... Lens placode (tissue thickening) induced in head ectoderm by close contact with neural (brain) tissue The developing lens induces brain to form the optic cup (Reciprocal Induction) ...
Physiology 2008
... Born with (almost) all of your nerve cells- they cannot REPRODUCE, however recent studies have shown that stem cells can make more (regenerate) brain cells if needed. B. Nervous System – Nerve tissue is responsible for controlling and coordinating many bodily activities. Many of these functions depe ...
... Born with (almost) all of your nerve cells- they cannot REPRODUCE, however recent studies have shown that stem cells can make more (regenerate) brain cells if needed. B. Nervous System – Nerve tissue is responsible for controlling and coordinating many bodily activities. Many of these functions depe ...
Lecture-08-2013-Bi
... The pentameric GABAA and glycine receptors look like ACh receptors; but they are permeable to anions (mostly Cl-, of course) 1. -amino-butyric acid (GABA) is the principal inhibitory transmitter in the brain. 2. Glycine is the dominant inhibitory transmitter in the spinal cord & hindbrain. GABAA r ...
... The pentameric GABAA and glycine receptors look like ACh receptors; but they are permeable to anions (mostly Cl-, of course) 1. -amino-butyric acid (GABA) is the principal inhibitory transmitter in the brain. 2. Glycine is the dominant inhibitory transmitter in the spinal cord & hindbrain. GABAA r ...
Dynamic expression of ATF3 as a novel tool to study activation and
... the forebrain, and in the subgranular zone of the dentate gyrus of the hippocampus. Additional, recently discovered potential reservoirs of progenitor cells have been also found in the walls of the microvasculature (perivascular niches, harboring pericytes that express mesenchymal cell markers) and ...
... the forebrain, and in the subgranular zone of the dentate gyrus of the hippocampus. Additional, recently discovered potential reservoirs of progenitor cells have been also found in the walls of the microvasculature (perivascular niches, harboring pericytes that express mesenchymal cell markers) and ...
this PDF file - Journal of Biological Methods
... Understanding the physiologic and pathologic mechanisms underlying developmental brain injury is challenging. Many types of cells contribute to the processes including neurons, astrocytes, microglia and oligodendrocytes. There is crosstalk and paracrine signaling in neural cells during the injury pr ...
... Understanding the physiologic and pathologic mechanisms underlying developmental brain injury is challenging. Many types of cells contribute to the processes including neurons, astrocytes, microglia and oligodendrocytes. There is crosstalk and paracrine signaling in neural cells during the injury pr ...
Module 04
... Tens of billions of neurons, each communicating with thousands of other neurons, yield an everchanging wiring diagram. The complexity of the central nervous system allows or makes possible (enables) our thinking, feeling, and behavior. In this way, it is similar to the electronic circuitry (wiring ...
... Tens of billions of neurons, each communicating with thousands of other neurons, yield an everchanging wiring diagram. The complexity of the central nervous system allows or makes possible (enables) our thinking, feeling, and behavior. In this way, it is similar to the electronic circuitry (wiring ...
Posterior pituitary Ovaries
... nucleus. Cyoplasm contain granules of parathyroid hormone which causes chief cells to staining darkly. These cells secrete PTH (parathyroid hormone). 2. Oxyphil cells. Slightly larger than chief cell (12 microns), contain acidophilic cytoplasm, due to mitochondria (hence the name Oxyphil), with no s ...
... nucleus. Cyoplasm contain granules of parathyroid hormone which causes chief cells to staining darkly. These cells secrete PTH (parathyroid hormone). 2. Oxyphil cells. Slightly larger than chief cell (12 microns), contain acidophilic cytoplasm, due to mitochondria (hence the name Oxyphil), with no s ...
A nerve cell
... Simplified model of the intracellular pathways involved in LTD and LTP. LTD is triggered by a modest rise in calcium that activates protein phosphatase 2B (calcineurin) and protein phosphatase 1. This leads to the endocytosis of synaptic AMPA receptors as well as to their dephosphorylation. LTP is t ...
... Simplified model of the intracellular pathways involved in LTD and LTP. LTD is triggered by a modest rise in calcium that activates protein phosphatase 2B (calcineurin) and protein phosphatase 1. This leads to the endocytosis of synaptic AMPA receptors as well as to their dephosphorylation. LTP is t ...
The Nervous System
... After receiving information, cerebellum refines orders being sent to muscles from motor cortex in cerebrum, ensures smooth coordinated movements ...
... After receiving information, cerebellum refines orders being sent to muscles from motor cortex in cerebrum, ensures smooth coordinated movements ...
RAPID REVIEW The nervous system is made up of a complex
... the neurotransmitter decreases the likelihood of an action potential, the connection is called an inhibitory synapse. Agonists and antagonists are chemicals that are not naturally found in our body but that can fit into the receptor sites of target cells when they get into our nervous system. Agonis ...
... the neurotransmitter decreases the likelihood of an action potential, the connection is called an inhibitory synapse. Agonists and antagonists are chemicals that are not naturally found in our body but that can fit into the receptor sites of target cells when they get into our nervous system. Agonis ...
{ How Neurosciences help us to understand some (psycho)therapeutic processes
... responsible for rendering new memories permanent. ...
... responsible for rendering new memories permanent. ...
The First Steps in Seeing
... © Sinauer Associates, Inc. This material cannot be copied, reproduced, manufactured or disseminated in any form without express written permission from the publisher. ...
... © Sinauer Associates, Inc. This material cannot be copied, reproduced, manufactured or disseminated in any form without express written permission from the publisher. ...
In What Sense, if Any, do Hippocampal “Time Cells” Represent or
... Envisage the sensory cortices as containing a large bank of independent, spiking neural oscillators with different but fixed frequencies and modifiable phases. They may be single, spontaneously firing neurons or whole circuits of neurons with a regular output. Regard a train of incoming, essentially ...
... Envisage the sensory cortices as containing a large bank of independent, spiking neural oscillators with different but fixed frequencies and modifiable phases. They may be single, spontaneously firing neurons or whole circuits of neurons with a regular output. Regard a train of incoming, essentially ...
Subventricular zone
The subventricular zone (SVZ) is a paired brain structure situated throughout the lateral walls of the lateral ventricles. It is composed of four distinct layers of variable thickness and cell density, as well as cellular composition. Along with the dentate gyrus of the hippocampus, the SVZ is one of two places where neurogenesis has been found to occur in the adult mammalian brain.