EXCITABLE TISSUES
... The depolarisation of the neuron terminal knob causes the opening of voltage gated Ca2+ channels. Ca2+ enters the neuron (since it is in low conc inside & high outside). The Ca2+ ions trigger reactions which cause the vesicles containing neurotransmitters to migrate tow ...
... The depolarisation of the neuron terminal knob causes the opening of voltage gated Ca2+ channels. Ca2+ enters the neuron (since it is in low conc inside & high outside). The Ca2+ ions trigger reactions which cause the vesicles containing neurotransmitters to migrate tow ...
Embryonic and Early Post-embryonic Development of the Parasitic
... gradually sink inward and increase in their number. When the longitudinal groove on the ventral surface is formed, the extruded mass containing nucleolar granules lies between the dorsal peripheral cells (Fig. 4). Such a stagnation of the out-streaming does not last long, owing to the growth of embr ...
... gradually sink inward and increase in their number. When the longitudinal groove on the ventral surface is formed, the extruded mass containing nucleolar granules lies between the dorsal peripheral cells (Fig. 4). Such a stagnation of the out-streaming does not last long, owing to the growth of embr ...
The control of rostrocaudal pattern in the developing spinal cord
... early acquisition of MN subtype identity has been provided by the demonstration that the expression of LIM homeodomain (HD) proteins defines each of the columnar subclasses of chick MNs, prior to target innervation (Tsuchida et al., 1994). Moreover, genetic analyses have shown that LIM-HD proteins c ...
... early acquisition of MN subtype identity has been provided by the demonstration that the expression of LIM homeodomain (HD) proteins defines each of the columnar subclasses of chick MNs, prior to target innervation (Tsuchida et al., 1994). Moreover, genetic analyses have shown that LIM-HD proteins c ...
Embryology Exam 1 Study Guide Questions for Lecture One 1
... pituitary leads to completion of meiosis I and ovulation. After ovulation, the Graafian follicle becomes a corpus luteum. Unless fertilization occurs 24 hours after ovulation, the egg will die. d. After fertilization- At fertilization, for each of the 23 chromosomes (1n, 1c) donated from the egg th ...
... pituitary leads to completion of meiosis I and ovulation. After ovulation, the Graafian follicle becomes a corpus luteum. Unless fertilization occurs 24 hours after ovulation, the egg will die. d. After fertilization- At fertilization, for each of the 23 chromosomes (1n, 1c) donated from the egg th ...
bHLH proteins and neuronal differentiation - Development
... pCS2+MTneuroD (Lee et al., 1995), pCS2+MTXngn2 (pCS2+MTXNGNR1a) (Ma et al., 1996), pCS2+ngn1/neuroD3 (McCormick et al., 1996) and pCS2+ mouse MyoD (Rupp et al., 1994) have been described previously. cDNAs for other mouse neural bHLH proteins (see Introduction for references), rat MASH1 (Johnson et a ...
... pCS2+MTneuroD (Lee et al., 1995), pCS2+MTXngn2 (pCS2+MTXNGNR1a) (Ma et al., 1996), pCS2+ngn1/neuroD3 (McCormick et al., 1996) and pCS2+ mouse MyoD (Rupp et al., 1994) have been described previously. cDNAs for other mouse neural bHLH proteins (see Introduction for references), rat MASH1 (Johnson et a ...
Neurogenic and non-neurogenic placodes in ascidians
... also exhibit differences (Fig. 1A, C), with regard to both the size and the anatomical complexity. The larva of C. intestinalis has a trunk about 340 mm and a tail about 850 mm long, while the larva of B. schlosseri has a trunk 400 mm long and a tail 1 mm long. The larvae possess transitory structur ...
... also exhibit differences (Fig. 1A, C), with regard to both the size and the anatomical complexity. The larva of C. intestinalis has a trunk about 340 mm and a tail about 850 mm long, while the larva of B. schlosseri has a trunk 400 mm long and a tail 1 mm long. The larvae possess transitory structur ...
Final Study Guied Intro to Chordates
... Complete/well developed excretory system/closed circulatory system ...
... Complete/well developed excretory system/closed circulatory system ...
The honeybee as a model for understanding the basis of cognition
... faculties6–8. Patterns of activity in synaptic ensembles and of single neurons that store components of a particular memory have been identified and characterized. The small size of the bee brain offers the opportunity to trace neural plasticity to specified neural circuits 9 and to single neurons7, ...
... faculties6–8. Patterns of activity in synaptic ensembles and of single neurons that store components of a particular memory have been identified and characterized. The small size of the bee brain offers the opportunity to trace neural plasticity to specified neural circuits 9 and to single neurons7, ...
Morphogenesis
... Each cell is a blastomere Cavity is the blastocoele Massive amounts of yolk result in formation of the blastoderm Placental mammals produce a blastocyst consisting of trophoblast and inner cell mass ...
... Each cell is a blastomere Cavity is the blastocoele Massive amounts of yolk result in formation of the blastoderm Placental mammals produce a blastocyst consisting of trophoblast and inner cell mass ...
lab 7
... • Sea Cucumbers • Elongated without radial symmetry (secondarily bilateral) • Have tentacles around mouth for filter feeding • Tube feet clustered on bottom (sole) used for locomotion • Tube feet on top are respiratory, also have respiratory trees inside • When frightened, they spew their guts out o ...
... • Sea Cucumbers • Elongated without radial symmetry (secondarily bilateral) • Have tentacles around mouth for filter feeding • Tube feet clustered on bottom (sole) used for locomotion • Tube feet on top are respiratory, also have respiratory trees inside • When frightened, they spew their guts out o ...
Structures and Functions Lecture 2
... • Synaptotagmin protein binds Ca2+ and promotes fusion of synaptic vesicles with axon membrane • Exocytosis of neurotransmitter into synaptic cleft occurs • Higher impulse frequency more released ...
... • Synaptotagmin protein binds Ca2+ and promotes fusion of synaptic vesicles with axon membrane • Exocytosis of neurotransmitter into synaptic cleft occurs • Higher impulse frequency more released ...
A Self-Organizing Neural Network That Learns to
... across sequences of neurons along a motion trajectory. A movingvisual object activates neurons along a chain; each activated neuron transmits predictive lateral excitatory connections to other neurons farther along the chain. However, during occlusion events, some predictive lateral excitatory signa ...
... across sequences of neurons along a motion trajectory. A movingvisual object activates neurons along a chain; each activated neuron transmits predictive lateral excitatory connections to other neurons farther along the chain. However, during occlusion events, some predictive lateral excitatory signa ...
Spinal Reflexes
... Example, Noxious Stimulus Withdrawal Reflex Arcs • Occurs from interaction with • Afferent neurons (sensory) • Internuncial neurons • Efferent neurons (Motor) ...
... Example, Noxious Stimulus Withdrawal Reflex Arcs • Occurs from interaction with • Afferent neurons (sensory) • Internuncial neurons • Efferent neurons (Motor) ...
UNC-55, an Orphan Nuclear Hormone Receptor, Orchestrates
... modifying the common genetic programs of neurons to create different synaptic specificities. The precisely defined sets of nerve and muscle cells responsible for locomotion in C. elegans allow genetic and cellular manipulations that provide a unique opportunity for investigating the generation of sp ...
... modifying the common genetic programs of neurons to create different synaptic specificities. The precisely defined sets of nerve and muscle cells responsible for locomotion in C. elegans allow genetic and cellular manipulations that provide a unique opportunity for investigating the generation of sp ...
Autonomic Nervous System I and II
... An axon may synapse with postganglionic neurons in the ganglion it first reaches or Sympathetic chains or An axon may continue, without synapsing, through the sympathetic trunk ganglion to end at a prevertebral ganglion and synapse with postganglionic neurons there or An axon may pass through the sy ...
... An axon may synapse with postganglionic neurons in the ganglion it first reaches or Sympathetic chains or An axon may continue, without synapsing, through the sympathetic trunk ganglion to end at a prevertebral ganglion and synapse with postganglionic neurons there or An axon may pass through the sy ...
4 lesson_15.4
... The Brain The brain integrates and controls the activities of the nervous system. It is involved in emotions and all of your senses. The brain sits in the protective cavity formed by the bones of the skull. It is covered with layers of cranial meninges and surrounded by cerebrospinal fluid. Both hel ...
... The Brain The brain integrates and controls the activities of the nervous system. It is involved in emotions and all of your senses. The brain sits in the protective cavity formed by the bones of the skull. It is covered with layers of cranial meninges and surrounded by cerebrospinal fluid. Both hel ...
Neurophysiologic Substrates of Hanna Somatics
... brain receives because, for one, the position of the head often changes. This altered sensory input can be fraught with unfortunate possibilities for our daily well being. We have many different types of sensory nerve fibers throughout our bodies (exteroceptors, interoceptors, proprioceptors). Each ...
... brain receives because, for one, the position of the head often changes. This altered sensory input can be fraught with unfortunate possibilities for our daily well being. We have many different types of sensory nerve fibers throughout our bodies (exteroceptors, interoceptors, proprioceptors). Each ...
D.U.C. Assist. Lec. Faculty of Dentistry General Physiology Ihsan
... Sensory (ascending) & Motor (descending) Pathways Before discussing the ascending and descending pathways, we need to give an orientation to the various areas of the cortex. (Figure 1) is a map of the human cerebral cortex, showing that it is divided into about 50 distinct areas called Brodmann’s ar ...
... Sensory (ascending) & Motor (descending) Pathways Before discussing the ascending and descending pathways, we need to give an orientation to the various areas of the cortex. (Figure 1) is a map of the human cerebral cortex, showing that it is divided into about 50 distinct areas called Brodmann’s ar ...