sensory receptors
... stimulus other than its adequate stimulus, it needs high energy and still gives its specific type of sensation; e.g. light receptors in the eye could be stimulated by a strong mechanical blow on the eye, these results in seeing flashes and stars. ...
... stimulus other than its adequate stimulus, it needs high energy and still gives its specific type of sensation; e.g. light receptors in the eye could be stimulated by a strong mechanical blow on the eye, these results in seeing flashes and stars. ...
Brain Jeopardy
... from the main cell body and carries information into the neuron – it receives input ...
... from the main cell body and carries information into the neuron – it receives input ...
Somatic nervous system
... by nicotinic receptors of the alpha motor neurons. In turn, alpha motor neurons relay the stimuli received down their axons via the ventral root of the spinal cord. These signals then proceed to the neuromuscular junctions of skeletal muscles. From there, acetylcholine is released from the axon term ...
... by nicotinic receptors of the alpha motor neurons. In turn, alpha motor neurons relay the stimuli received down their axons via the ventral root of the spinal cord. These signals then proceed to the neuromuscular junctions of skeletal muscles. From there, acetylcholine is released from the axon term ...
The Nervous System
... and outside the body to brain and spinal cord. • Interneurons: found within brain and spinal cord, process incoming impulses and pass them on to motor neurons. • Motor Neurons: carry impulses away from the brain and spinal cord. ...
... and outside the body to brain and spinal cord. • Interneurons: found within brain and spinal cord, process incoming impulses and pass them on to motor neurons. • Motor Neurons: carry impulses away from the brain and spinal cord. ...
The Nervous System
... and outside the body to brain and spinal cord. • Interneurons: found within brain and spinal cord, process incoming impulses and pass them on to motor neurons. • Motor Neurons: carry impulses away from the brain and spinal cord. ...
... and outside the body to brain and spinal cord. • Interneurons: found within brain and spinal cord, process incoming impulses and pass them on to motor neurons. • Motor Neurons: carry impulses away from the brain and spinal cord. ...
File
... 2. List the following in order: A. K+ channels open and K+ floods out of cell B. Membrane is polarized (resting potential) C. Neurotransmitters are released from vesicles into synaptic cleft D. Na+ channels open and Na+ floods into cell E. Stimulus triggers membrane depolarization ...
... 2. List the following in order: A. K+ channels open and K+ floods out of cell B. Membrane is polarized (resting potential) C. Neurotransmitters are released from vesicles into synaptic cleft D. Na+ channels open and Na+ floods into cell E. Stimulus triggers membrane depolarization ...
Nervous System
... Visual & auditory sensory input passes through the midbrain before being relayed to the higher brain centers Coordinates movements of the head related to vision and hearing (e.g. turning towards sound or flashing lights) Controls eye movement and pupil size Monitors unconscious movement of skeletal ...
... Visual & auditory sensory input passes through the midbrain before being relayed to the higher brain centers Coordinates movements of the head related to vision and hearing (e.g. turning towards sound or flashing lights) Controls eye movement and pupil size Monitors unconscious movement of skeletal ...
Chapter 2
... – Synaptic cleft (gap)– space between bulb of one cell and the dendrite of another – Receptor sites- holes is surface of dendrite; shaped to receive certain neurotransmitters – Neurotransmitters – chemicals in the synaptic vesicles; when released effect the next cell ...
... – Synaptic cleft (gap)– space between bulb of one cell and the dendrite of another – Receptor sites- holes is surface of dendrite; shaped to receive certain neurotransmitters – Neurotransmitters – chemicals in the synaptic vesicles; when released effect the next cell ...
Neuro2
... Golgi network. These vesicles are transported down to synaptic terminals along microtubules (usually due to an influx of calcium from the extracellular space). The vesicles fuse w/ the membrane at “active zones” and release their drugs into the extracellular space. transportdockingprimingfusionr ...
... Golgi network. These vesicles are transported down to synaptic terminals along microtubules (usually due to an influx of calcium from the extracellular space). The vesicles fuse w/ the membrane at “active zones” and release their drugs into the extracellular space. transportdockingprimingfusionr ...
File - LC Biology 2012-2013
... seen in older people, in which muscles become rigid and movement is slow and difficult, with persistent tremors [shaking]. It is caused by the brain reducing the normal amount of dopamine that it makes. There is at present no means of preventing it, but giving L-dopa (which the body changes into d ...
... seen in older people, in which muscles become rigid and movement is slow and difficult, with persistent tremors [shaking]. It is caused by the brain reducing the normal amount of dopamine that it makes. There is at present no means of preventing it, but giving L-dopa (which the body changes into d ...
Week 2 Lecture Notes
... contains a salt solution resembling the fluid normally found within the cell, is lowered to the cell membrane where a tight seal is formed. When a little suction is applied to the pipette, the "patch" of membrane within the pipette ruptures, permitting access to the whole cell. The electrode, which ...
... contains a salt solution resembling the fluid normally found within the cell, is lowered to the cell membrane where a tight seal is formed. When a little suction is applied to the pipette, the "patch" of membrane within the pipette ruptures, permitting access to the whole cell. The electrode, which ...
4/12 - bio.utexas.edu
... Ion movement across the membrane causes the signal to travel from one end to the other ...
... Ion movement across the membrane causes the signal to travel from one end to the other ...
Organization and Development of the Nervous System
... In PNS, there are mechanisms for creating collagen around the injury to act as a “bridge” for axons to grow along. ...
... In PNS, there are mechanisms for creating collagen around the injury to act as a “bridge” for axons to grow along. ...
The nervous system
... occipital- vision and interpreting visual information temporal – vision, hearing, memory, interpretation of sensory information ...
... occipital- vision and interpreting visual information temporal – vision, hearing, memory, interpretation of sensory information ...
Developmental plasticity: Pruning
... temporally correlates with postmortem findings of increased synaptic pruning during adolescence and early adulthood. The primary cause for loss of GM density is unknown. It may be driven at least partially by the process of synaptic pruning, together with trophic glial and vascular changes and or ce ...
... temporally correlates with postmortem findings of increased synaptic pruning during adolescence and early adulthood. The primary cause for loss of GM density is unknown. It may be driven at least partially by the process of synaptic pruning, together with trophic glial and vascular changes and or ce ...
The nervous system
... occipital- vision and interpreting visual information temporal – vision, hearing, memory, interpretation of sensory information ...
... occipital- vision and interpreting visual information temporal – vision, hearing, memory, interpretation of sensory information ...
spinal cord
... 1. nervous- electrical system, brain,spine and nerves found in multicellular organisms 2. endocrine- chemical system, hormones found in all organisms Nervous System: definitions: a. stimulus- change in the internal or external environment that triggers an impulse which ends in a response b. impulse- ...
... 1. nervous- electrical system, brain,spine and nerves found in multicellular organisms 2. endocrine- chemical system, hormones found in all organisms Nervous System: definitions: a. stimulus- change in the internal or external environment that triggers an impulse which ends in a response b. impulse- ...
Flash cards
... and processes body touch and movement sensations. the division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations; prepares the body for fight or flight response. the junction between the axon tip of the sending neuron and the dendrite or cell body o ...
... and processes body touch and movement sensations. the division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations; prepares the body for fight or flight response. the junction between the axon tip of the sending neuron and the dendrite or cell body o ...
C8003 Psychobiology sample paper 2016-17
... GABA depolarises the postsynaptic cell as a consequence of chloride movement into that cell GABA-A receptors have a single binding site at which GABA and alcohol interact GABA is taken up into the presynaptic cell after it acts at the receptor GABA-A receptors require second messenger systems to hav ...
... GABA depolarises the postsynaptic cell as a consequence of chloride movement into that cell GABA-A receptors have a single binding site at which GABA and alcohol interact GABA is taken up into the presynaptic cell after it acts at the receptor GABA-A receptors require second messenger systems to hav ...
No Slide Title
... - Chemicals from other neurons - Chemicals from endocrine glands - Chemicals from outside sources (e.g., Drugs) ...
... - Chemicals from other neurons - Chemicals from endocrine glands - Chemicals from outside sources (e.g., Drugs) ...
Chapter Outlines - Cengage Learning
... synapses. Axons carry signals away from the neuron to points where communication occurs with other neurons, whereas dendrites detect and carry information from other nerve cells to the cell body. Other nervous system cells, called glial cells, hold neurons in place, direct their growth and repair, a ...
... synapses. Axons carry signals away from the neuron to points where communication occurs with other neurons, whereas dendrites detect and carry information from other nerve cells to the cell body. Other nervous system cells, called glial cells, hold neurons in place, direct their growth and repair, a ...
1. Which of the following is the component of the limbic system that
... 43. Neurotransmitters are released from vesicles located on knoblike terminals at the end of the A) dendrites. B) cell body. C) axon. D) myelin sheath. E) synapse. 44. The chemical messengers released into the spatial junctions between neurons are called A) hormones. B) neurotransmitters. C) synapse ...
... 43. Neurotransmitters are released from vesicles located on knoblike terminals at the end of the A) dendrites. B) cell body. C) axon. D) myelin sheath. E) synapse. 44. The chemical messengers released into the spatial junctions between neurons are called A) hormones. B) neurotransmitters. C) synapse ...
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.