Nervous System I
... Depending on the receptor and the neurotransmitter, the neurotransmitter may either excite the postsynaptic cell or inhibit the postsynaptic cell. ...
... Depending on the receptor and the neurotransmitter, the neurotransmitter may either excite the postsynaptic cell or inhibit the postsynaptic cell. ...
BIOS 1300 SI EXAM 4 REVIEW –WORKSHEET 2 SI Leader: Merrin
... a. the slower an action potential will be conducted b. the greater the number of action potentials c. the faster an action potential will be conducted d. the less effect it will have on action potential conduction 11. Sensory neurons that provide information about the external environment through t ...
... a. the slower an action potential will be conducted b. the greater the number of action potentials c. the faster an action potential will be conducted d. the less effect it will have on action potential conduction 11. Sensory neurons that provide information about the external environment through t ...
Inner Ear
... The inner ear consists of the cochlea and three semicircular canals. The snail shaped cochlea is the part of the ear that transmits sound information to the brain. Vibrations of the middle ear set the fluid in the cochlea into motion. The fluids stimulate different areas along the basilar membrane a ...
... The inner ear consists of the cochlea and three semicircular canals. The snail shaped cochlea is the part of the ear that transmits sound information to the brain. Vibrations of the middle ear set the fluid in the cochlea into motion. The fluids stimulate different areas along the basilar membrane a ...
Psychology Chapter 19: Group Interaction
... i. New, can see the blow flow into active areas to determine activity and functionality Section 2 Review ...
... i. New, can see the blow flow into active areas to determine activity and functionality Section 2 Review ...
Essentials of Human Anatomy 12
... Olfactory Nerve Pathways Once olfactory receptors are stimulated, nerve impulses travel through • olfactory nerves olfactory bulbs olfactory tracts limbic system (for emotions) and olfactory cortex (for interpretation) ...
... Olfactory Nerve Pathways Once olfactory receptors are stimulated, nerve impulses travel through • olfactory nerves olfactory bulbs olfactory tracts limbic system (for emotions) and olfactory cortex (for interpretation) ...
Neuroanatomy - UCSD Cognitive Science
... Dendrites generally receive synaptic input (i.e. are postsynaptic) and axons generally send synaptic output (i.e., are presynaptic) Dynamic polarization (processes of input, integration, output) may be considered “computation.” However, DP is NOT independent of the neuroanatomy and can occur in both ...
... Dendrites generally receive synaptic input (i.e. are postsynaptic) and axons generally send synaptic output (i.e., are presynaptic) Dynamic polarization (processes of input, integration, output) may be considered “computation.” However, DP is NOT independent of the neuroanatomy and can occur in both ...
Nervous System
... • Chemical messengers that cross the synapse allowing one neuron to communicate with another • Can be excitatory (cause postsynaptic neuron to depolarize (become more positive)) • Can be inhibitory (cause post synaptic membrane to hyperpolarize (become more negative)) ...
... • Chemical messengers that cross the synapse allowing one neuron to communicate with another • Can be excitatory (cause postsynaptic neuron to depolarize (become more positive)) • Can be inhibitory (cause post synaptic membrane to hyperpolarize (become more negative)) ...
Ch03b
... cell C7 has the value 100. We can enter a value in another cell, say D8, to multiply cell B7 by C7. • The cell in D8 would then hold the formula: =B7*C7 which gives a value of 800. • If we change the value in cell B7 to 5, then the value in cell D8 will change to 500 automatically. ...
... cell C7 has the value 100. We can enter a value in another cell, say D8, to multiply cell B7 by C7. • The cell in D8 would then hold the formula: =B7*C7 which gives a value of 800. • If we change the value in cell B7 to 5, then the value in cell D8 will change to 500 automatically. ...
LEVELS OF ORGANIZATION
... the mechanism behind various events. For example, How does drinking alcohol increase urinary output? How does muscle get bigger when it’s put under mechanical stress (i.e. ...
... the mechanism behind various events. For example, How does drinking alcohol increase urinary output? How does muscle get bigger when it’s put under mechanical stress (i.e. ...
Motor Neurons
... • Myelin Sheath An insulating layer around an axon. Made up of Schwann cells. • Nodes of Ranvier Gaps between schwann cells. – Conduction of the impulse. (Situation where speed of an impulse is greatly increased by the message ‘jumping’ the gaps in an axon). ...
... • Myelin Sheath An insulating layer around an axon. Made up of Schwann cells. • Nodes of Ranvier Gaps between schwann cells. – Conduction of the impulse. (Situation where speed of an impulse is greatly increased by the message ‘jumping’ the gaps in an axon). ...
Chapter 48 and 49 Name_______________________________
... 19. What are the two types of postsynaptic potentials? Describe them briefly. a. Excitatory postsynaptic potentials (EPSPs) are depolarizations that bring the membrane potential toward threshold b. Inhibitory postsynaptic potentials (IPSPs) are hyperpolarizations that move the membrane potential far ...
... 19. What are the two types of postsynaptic potentials? Describe them briefly. a. Excitatory postsynaptic potentials (EPSPs) are depolarizations that bring the membrane potential toward threshold b. Inhibitory postsynaptic potentials (IPSPs) are hyperpolarizations that move the membrane potential far ...
NERVOUS SYSTEM - Welcome to the Health Science Program
... the synapse to another neuron by a chemical called a neurotransmitter ...
... the synapse to another neuron by a chemical called a neurotransmitter ...
Nervous System Notes
... – If received by another neuron, it will open Na+ gates on the next neuron, beginning a new action potential on the new neuron – If received by some body part, it will stimulate some sort of change (muscles, glands, etc.) • After neurotransmitter does its job, the receptor releases it back into syna ...
... – If received by another neuron, it will open Na+ gates on the next neuron, beginning a new action potential on the new neuron – If received by some body part, it will stimulate some sort of change (muscles, glands, etc.) • After neurotransmitter does its job, the receptor releases it back into syna ...
Slide 1 - Elsevier
... FIGURE 52-6: A model for the major signaling mechanisms for the transduction of sweet, bitter and umami stimuli. The individual steps are detailed in the text. Note that stimuli of each of these taste qualities interact with GPCRs: bitter stimuli with T2Rs, and sweet and umami stimuli with T1Rs. α- ...
... FIGURE 52-6: A model for the major signaling mechanisms for the transduction of sweet, bitter and umami stimuli. The individual steps are detailed in the text. Note that stimuli of each of these taste qualities interact with GPCRs: bitter stimuli with T2Rs, and sweet and umami stimuli with T1Rs. α- ...
nervous5
... Some IPSPs result in no change in membrane potential by opening Chloride channels that stabilize membrane potential at resting value (Nernst Potential for Cl- = -70mV) or in cells that actively transport Cl- out. ...
... Some IPSPs result in no change in membrane potential by opening Chloride channels that stabilize membrane potential at resting value (Nernst Potential for Cl- = -70mV) or in cells that actively transport Cl- out. ...
Intro to Nervous System
... activities that occur in the body are maintained within normal physiological limits. In addition, our body constantly reacts to a multitude of signals, be it external or internal signals. Two body systems are responsible for dealing with these signals and controlling the state of homeostasis • Endo ...
... activities that occur in the body are maintained within normal physiological limits. In addition, our body constantly reacts to a multitude of signals, be it external or internal signals. Two body systems are responsible for dealing with these signals and controlling the state of homeostasis • Endo ...
Lecture 11: Chapter 15 Neural Integration I: Sensory
... • A large enough stimulus changes the receptor potential, reaching generator potential • Transduction involves: • A stimulus alerting the permeability of a receptor membrane • Change in the transmembrane potential of receptor • The production of a generator potential ...
... • A large enough stimulus changes the receptor potential, reaching generator potential • Transduction involves: • A stimulus alerting the permeability of a receptor membrane • Change in the transmembrane potential of receptor • The production of a generator potential ...
Endocrine System: Overview
... than those with smaller diameters because larger axons have less resistance to current flow. 5.Investigate the effects of temperature. a. How does temperature affect conduction speed? In comparing cooled axons vs. warmer axons the cooled axons will conduct potentials less rapidly than warm axons. St ...
... than those with smaller diameters because larger axons have less resistance to current flow. 5.Investigate the effects of temperature. a. How does temperature affect conduction speed? In comparing cooled axons vs. warmer axons the cooled axons will conduct potentials less rapidly than warm axons. St ...
Chapter 13
... An impulse does _____ occur along sections of the neuron which are __________ in myelin ...
... An impulse does _____ occur along sections of the neuron which are __________ in myelin ...
Reflexes
... -receptors are specialized muscle cells embedded within whole muscles: intrafusal muscle fibers -sensory neurons monitor the degree (type Ia fibers and type II fibers) and rate of stretch (type Ia fibers) of the intrafusal muscle fibers -the whole production (receptor cells and sensory neuron ending ...
... -receptors are specialized muscle cells embedded within whole muscles: intrafusal muscle fibers -sensory neurons monitor the degree (type Ia fibers and type II fibers) and rate of stretch (type Ia fibers) of the intrafusal muscle fibers -the whole production (receptor cells and sensory neuron ending ...
Organismsc - ClarissaGBiology2010
... system of vertebrates contains the brain, spinal cord, and retina. The peripheral nervous system consists of clusters of ganglia (sensory neurons), and nerves connecting them to each other and to the central nervous system. ...
... system of vertebrates contains the brain, spinal cord, and retina. The peripheral nervous system consists of clusters of ganglia (sensory neurons), and nerves connecting them to each other and to the central nervous system. ...
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.