Nervous System
... Called tracts in the CNS and nerves in the PNS There are two types: axons and dendrites ...
... Called tracts in the CNS and nerves in the PNS There are two types: axons and dendrites ...
Chapter 2 Vocabulary
... 6. An __________________ __________________ is a neural impulse generated by the movement of positively charged atoms in and out of channels in the axon’s membrane. (p.49) 7. A neuron’s __________________ is the level of stimulation that must be exceeded in order for the neuron to fire, or generate ...
... 6. An __________________ __________________ is a neural impulse generated by the movement of positively charged atoms in and out of channels in the axon’s membrane. (p.49) 7. A neuron’s __________________ is the level of stimulation that must be exceeded in order for the neuron to fire, or generate ...
Audition and Equilibrium
... • Open Voltagegated Ca++ channels • Release of NT from synaptic vesicles ...
... • Open Voltagegated Ca++ channels • Release of NT from synaptic vesicles ...
Human nervous system_Final
... The human nervous system has two main divisions as seen in the concept map, they are the central nervous system and the peripheral nervous system. Two main system: - The central nervous system (CNS) contains the brain and spinal cord. - The peripheral nervous system (PNS) includes the somatic motor ...
... The human nervous system has two main divisions as seen in the concept map, they are the central nervous system and the peripheral nervous system. Two main system: - The central nervous system (CNS) contains the brain and spinal cord. - The peripheral nervous system (PNS) includes the somatic motor ...
Quiz - psychm5
... have a positive electric charge while neutrons have a negative charge. have neither a positive nor a negative electrical charge. can be found only inside the neuron, creating in your brain an electronic charge of about minus 90 millivolts. ...
... have a positive electric charge while neutrons have a negative charge. have neither a positive nor a negative electrical charge. can be found only inside the neuron, creating in your brain an electronic charge of about minus 90 millivolts. ...
Unit Three Nervous System
... that is carried by nerve cells. • The impulses are then transferred to the central nervous system (brain and spinal cord). • The central nervous system then sorts out and interprets the incoming impulses. • The impulse is then sent to organs or glands. • These organs and glands provide responses to ...
... that is carried by nerve cells. • The impulses are then transferred to the central nervous system (brain and spinal cord). • The central nervous system then sorts out and interprets the incoming impulses. • The impulse is then sent to organs or glands. • These organs and glands provide responses to ...
Chapter 3
... enters the neuron (-K) d. neuron depolarizes, going from a neg. to pos. valence e. when action potential completed, the Na+ is pumped out and K- returns f. repolarization to neg. 8. myelin – fatty substance that speeds transmission of impulse ...
... enters the neuron (-K) d. neuron depolarizes, going from a neg. to pos. valence e. when action potential completed, the Na+ is pumped out and K- returns f. repolarization to neg. 8. myelin – fatty substance that speeds transmission of impulse ...
Unit 3 Study Guide
... i. Neuron has negative charge with positive ions surrounding the cell b. Steps i. Neuron is stimulated 1. it releases neurotransmitters ii. Neurotransmitters bind to receptor sites on the dendrites of the receiving neuron iii. If the threshold is reached, the cell membrane of the receiving neuron be ...
... i. Neuron has negative charge with positive ions surrounding the cell b. Steps i. Neuron is stimulated 1. it releases neurotransmitters ii. Neurotransmitters bind to receptor sites on the dendrites of the receiving neuron iii. If the threshold is reached, the cell membrane of the receiving neuron be ...
ppt - Le Moyne College
... cleaning, and various other functions – Increasing evidence that glial cells may regulate neuronal signals by changing the blood supply & altering the availability of neurotransmitters – Most brain tumors arise from glia, not neurons – Old estimate: ~ 1 trillion glial cells – New estimate: ~ 85 (74- ...
... cleaning, and various other functions – Increasing evidence that glial cells may regulate neuronal signals by changing the blood supply & altering the availability of neurotransmitters – Most brain tumors arise from glia, not neurons – Old estimate: ~ 1 trillion glial cells – New estimate: ~ 85 (74- ...
notes as
... and bind to receptor molecules in the membrane of the postsynaptic neuron thus changing their shape. – This opens up holes that allow specific ions in or out. • The effectiveness of the synapse can be changed – vary the number of vesicles of transmitter – vary the number of receptor molecules. • Syn ...
... and bind to receptor molecules in the membrane of the postsynaptic neuron thus changing their shape. – This opens up holes that allow specific ions in or out. • The effectiveness of the synapse can be changed – vary the number of vesicles of transmitter – vary the number of receptor molecules. • Syn ...
Questions and Answers
... 6. If a neuron is on a refractory period, where it does not activate due to input from other neurons, does it still fire at the base rate or is its activity actually decreased from its base rate? A: the refractory period is shorter than the time between two action potentials in the base rate, so not ...
... 6. If a neuron is on a refractory period, where it does not activate due to input from other neurons, does it still fire at the base rate or is its activity actually decreased from its base rate? A: the refractory period is shorter than the time between two action potentials in the base rate, so not ...
Lecture 2 Membrane Transport Membrane Transport Unassisted
... AP reaches the synaptic knob Voltage-gated Ca2+ channels open Ca2+ flows into the synapse from the ECF Ca induces exocytosis of vesicles and release of neurotransmitter Neurotransmitter diffuses across the synaptic cleft to the subsynaptic membrane and binds to specific receptors Binding triggers op ...
... AP reaches the synaptic knob Voltage-gated Ca2+ channels open Ca2+ flows into the synapse from the ECF Ca induces exocytosis of vesicles and release of neurotransmitter Neurotransmitter diffuses across the synaptic cleft to the subsynaptic membrane and binds to specific receptors Binding triggers op ...
A17 - Viktor`s Notes for the Neurosurgery Resident
... b) specialized cells (that release neurotransmitter and generate action potentials in neurons) – e.g. in complex sense organs (vision, hearing, equilibrium, taste). sensory receptor is often associated with nonneural cells that surround it, forming SENSE ORGAN. to stimulate receptor, stimulus mu ...
... b) specialized cells (that release neurotransmitter and generate action potentials in neurons) – e.g. in complex sense organs (vision, hearing, equilibrium, taste). sensory receptor is often associated with nonneural cells that surround it, forming SENSE ORGAN. to stimulate receptor, stimulus mu ...
SUPPLEMENTARY MATERIAL FOR SENIOR SECONDARY BIOLOGY
... phenotypic effect Quantitative characters like plant height, yield of crops (size, shape and number of seeds and fruits per plant), intelligence in human beings and milk yield in animals have been found to be determined by many genes and their effects have been found to be cumulative. Each gene has ...
... phenotypic effect Quantitative characters like plant height, yield of crops (size, shape and number of seeds and fruits per plant), intelligence in human beings and milk yield in animals have been found to be determined by many genes and their effects have been found to be cumulative. Each gene has ...
The biological Approach
... • Neurotransmitters are brain chemicals released from synaptic vesicles that relay signals across the synapse from one neuron to another. • Neurotransmitters can be broadly divided into those that perform an excitatory functions and those that perform an inhibitory function. • For example, serotonin ...
... • Neurotransmitters are brain chemicals released from synaptic vesicles that relay signals across the synapse from one neuron to another. • Neurotransmitters can be broadly divided into those that perform an excitatory functions and those that perform an inhibitory function. • For example, serotonin ...
Autonomic Nervous System (Ch. 14)
... b. Result: Dynamic antagonisms that precisely control visceral activity i. Sympathetic fibers: Increase heart & respiratory rates - Inhibit digestion & elimination ii. Parasympathetic fibers: Decrease heart & respiratory rates, Allow for digestion & discarding of wastes ...
... b. Result: Dynamic antagonisms that precisely control visceral activity i. Sympathetic fibers: Increase heart & respiratory rates - Inhibit digestion & elimination ii. Parasympathetic fibers: Decrease heart & respiratory rates, Allow for digestion & discarding of wastes ...
Human Anatomy and Physiology, Nervous System and Special
... Pressure on a __________________ receptor Neurotransmitters from __________________________ 12. Order the movements of ions involved in the generation and propagation of action potentials. ______ moves in = ______________________ ______ moves out = repolarization 13. Describe saltatory conduction. W ...
... Pressure on a __________________ receptor Neurotransmitters from __________________________ 12. Order the movements of ions involved in the generation and propagation of action potentials. ______ moves in = ______________________ ______ moves out = repolarization 13. Describe saltatory conduction. W ...
THE HUMAN BODY
... CHANGE SHAPE TO SEE CLOSE OR FAR • RELAXED – FLATTENS LENS – SEE FAR • CONTRACT – NORMAL – SEE CLOSE ...
... CHANGE SHAPE TO SEE CLOSE OR FAR • RELAXED – FLATTENS LENS – SEE FAR • CONTRACT – NORMAL – SEE CLOSE ...
Biological Psychology Modules 3 & 4
... – Visual cortex • visual info – Auditory cortex • auditory info – Somatosensory cortex • info from skin • Association cortex – involved in complex cognitive tasks associating words with images • Broca’s area (aphasia) • Wernicke’s area (aphasia) ...
... – Visual cortex • visual info – Auditory cortex • auditory info – Somatosensory cortex • info from skin • Association cortex – involved in complex cognitive tasks associating words with images • Broca’s area (aphasia) • Wernicke’s area (aphasia) ...
Chater 2 - Study Guide
... 28. (Thinking Critically) Based on research, which of the following seems true about the specialized functions of the right and left hemispheres? A) They are more clear-cut in men than in women. B) They are more clear-cut in women than in men. C) Most complex tasks emerge from the activity of one o ...
... 28. (Thinking Critically) Based on research, which of the following seems true about the specialized functions of the right and left hemispheres? A) They are more clear-cut in men than in women. B) They are more clear-cut in women than in men. C) Most complex tasks emerge from the activity of one o ...
Ch 3 (30 MCQ answers)
... – packages filled with neurotransmitter. When an action potential reaches the axon terminal, some vesicles fuse with the external cell membrane of the neuron, and the neurotransmitter chemical they contain is released. 19) Answer: (b). Neurons’ output signals are all-or-nothing action potentials, an ...
... – packages filled with neurotransmitter. When an action potential reaches the axon terminal, some vesicles fuse with the external cell membrane of the neuron, and the neurotransmitter chemical they contain is released. 19) Answer: (b). Neurons’ output signals are all-or-nothing action potentials, an ...
Chapter 1 - Laboratory Animal Boards Study Group
... False- has not been conclusively demonstrated the greatest level of pain an individual is willing to tolerate hyperalgesia hypersensitivity pain induced by a non-noxious stimulus absence of pain in response to stimulation that would normally be painful c- nociception nociception includes neurobiolog ...
... False- has not been conclusively demonstrated the greatest level of pain an individual is willing to tolerate hyperalgesia hypersensitivity pain induced by a non-noxious stimulus absence of pain in response to stimulation that would normally be painful c- nociception nociception includes neurobiolog ...
Molecular neuroscience
Molecular neuroscience is a branch of neuroscience that observes concepts in molecular biology applied to the nervous systems of animals. The scope of this subject primarily pertains to a reductionist view of neuroscience, considering topics such as molecular neuroanatomy, mechanisms of molecular signaling in the nervous system, the effects of genetics on neuronal development, and the molecular basis for neuroplasticity and neurodegenerative diseases. As with molecular biology, molecular neuroscience is a relatively new field that is considerably dynamic.