Exam Questions - NEVR2030 - Autumn 2012
... 3. Besides transmitting vibrations from the ear drum to the inner ear what is the function of the middle ear bones malleus, incus and stapes? (2) 4. What is the largest commissure in the brain called? (1) 5. Name two brain regions that are targeted by the olfactory tract, i.e. the pathway made u ...
... 3. Besides transmitting vibrations from the ear drum to the inner ear what is the function of the middle ear bones malleus, incus and stapes? (2) 4. What is the largest commissure in the brain called? (1) 5. Name two brain regions that are targeted by the olfactory tract, i.e. the pathway made u ...
The Study of Body Function
... A. Reflex – neural and chemical pathways Receptors, 2. Integrating Center and 3. Effectors Physiological Variable, stimulus, Set point, balance of inputs and outputs B. Local Homeostatic Responses ...
... A. Reflex – neural and chemical pathways Receptors, 2. Integrating Center and 3. Effectors Physiological Variable, stimulus, Set point, balance of inputs and outputs B. Local Homeostatic Responses ...
1 How the Nervous System Works
... reaches the axon tip at the end of a neuron? At that point, the impulse can pass to the next structure. Sometimes the structure is the dendrite of another neuron. Other times, the structure is a muscle or a cell in another organ, such as a sweat gland. The junction where one neuron can transfer an i ...
... reaches the axon tip at the end of a neuron? At that point, the impulse can pass to the next structure. Sometimes the structure is the dendrite of another neuron. Other times, the structure is a muscle or a cell in another organ, such as a sweat gland. The junction where one neuron can transfer an i ...
PSYB1 Revision sheet Biopsychology JM09
... The function of a motor neuron is to carry information from the central nervous system to the muscles/glands/effectors, whereas the function of a sensory neuron is to carry information from the sense organs to the central nervous system. Synaptic Transmission ...
... The function of a motor neuron is to carry information from the central nervous system to the muscles/glands/effectors, whereas the function of a sensory neuron is to carry information from the sense organs to the central nervous system. Synaptic Transmission ...
In the brain, most excitatory communication in synapses occurs by
... In the brain, most excitatory communication in synapses occurs by way of glutamate and most inhibitory communication occurs by way of gamma-aminobutyric acid. In general terms, describe what the other neurotransmitters do. ...
... In the brain, most excitatory communication in synapses occurs by way of glutamate and most inhibitory communication occurs by way of gamma-aminobutyric acid. In general terms, describe what the other neurotransmitters do. ...
Bad Fish
... If a cell starts at resting potential (-70mv), and then is stimulated: A. The membrane voltage will become < -70mV, because Na+ will move OUT of the cell B. The membrane voltage will become >-70mV, because Na+ will move OUT of the cell. C. The membrane voltage will become < -70mV because Na+ will m ...
... If a cell starts at resting potential (-70mv), and then is stimulated: A. The membrane voltage will become < -70mV, because Na+ will move OUT of the cell B. The membrane voltage will become >-70mV, because Na+ will move OUT of the cell. C. The membrane voltage will become < -70mV because Na+ will m ...
Specialized Neurotransmitters Dopamine
... gap and attach themselves to SPECIAL RECEPTORS on the membrane of the neuron receiving the impulse. This now causes the electrical impulse to be regenerated. After the neurotransmitter relays it message it is rapidly REMOVED or DESTROYED, thus halting its effect. ENZYMES, taken up again by the axon ...
... gap and attach themselves to SPECIAL RECEPTORS on the membrane of the neuron receiving the impulse. This now causes the electrical impulse to be regenerated. After the neurotransmitter relays it message it is rapidly REMOVED or DESTROYED, thus halting its effect. ENZYMES, taken up again by the axon ...
Primary motor cortex
... The PET scan on the left shows two areas of the brain (red and yellow) that become particularly active when volunteers read words on a video screen: the primary visual cortex and an additional part of the visual system, both in the back of the left hemisphere. Other brain regions become especially a ...
... The PET scan on the left shows two areas of the brain (red and yellow) that become particularly active when volunteers read words on a video screen: the primary visual cortex and an additional part of the visual system, both in the back of the left hemisphere. Other brain regions become especially a ...
Lecture 7
... o __________________ – all neurons have the ability to respond to environmental changes o Conductivity – Neurons produce traveling electrical signals that quickly reach other cells at _________________ locations o Secretion – when the electrical signal reaches the end of a nerve fiber, the neuron us ...
... o __________________ – all neurons have the ability to respond to environmental changes o Conductivity – Neurons produce traveling electrical signals that quickly reach other cells at _________________ locations o Secretion – when the electrical signal reaches the end of a nerve fiber, the neuron us ...
Review (11/01/16)
... to follow • If only large-diameter fibers are activated, inhibitory interneurons are activated, which means they inhibit the pain pathway, so you will not experience pain, because even though the large-diameter fibers are excitatory and excite the pain pathway, this is countered by the inhibtion tha ...
... to follow • If only large-diameter fibers are activated, inhibitory interneurons are activated, which means they inhibit the pain pathway, so you will not experience pain, because even though the large-diameter fibers are excitatory and excite the pain pathway, this is countered by the inhibtion tha ...
Bolt IRM Mod 03
... As mentioned in the text, myelin is a fatty sheath that helps speed impulses down some neurons’ axons. Its importance for the normal transfer of information in the human nervous system is evident in the demyelinating diseases of multiple sclerosis (MS) and Guillain-Barré syndrome. It is now clear th ...
... As mentioned in the text, myelin is a fatty sheath that helps speed impulses down some neurons’ axons. Its importance for the normal transfer of information in the human nervous system is evident in the demyelinating diseases of multiple sclerosis (MS) and Guillain-Barré syndrome. It is now clear th ...
Cell Ontology – INCF Neuron Workshop
... Most neurons are defined in part by their anatomical location. – Brain and nervous system anatomy varies considerably between species. – Many anatomical systems exist for brains of different species. These are often in conflict with each other. – Neurons often have their soma in one anatomical locat ...
... Most neurons are defined in part by their anatomical location. – Brain and nervous system anatomy varies considerably between species. – Many anatomical systems exist for brains of different species. These are often in conflict with each other. – Neurons often have their soma in one anatomical locat ...
PowerPoint Ch. 6
... General Principles of Sensory Coding Muller and the law of specific energies-any activity by a particular nerve always conveys the same kind of information to the brain Qualifications of the Law of Specific Energies the rate of firing or pattern of firing may signal independent stimuli timing of act ...
... General Principles of Sensory Coding Muller and the law of specific energies-any activity by a particular nerve always conveys the same kind of information to the brain Qualifications of the Law of Specific Energies the rate of firing or pattern of firing may signal independent stimuli timing of act ...
Answer Key
... 6. During an action potential, the electrical state of the axon becomes: A) polarized, as positively charged atoms are admitted. B) polarized, as negatively charged atoms are admitted. C) depolarized, as positively charged atoms are admitted. D) depolarized, as negatively charged atoms are admitted ...
... 6. During an action potential, the electrical state of the axon becomes: A) polarized, as positively charged atoms are admitted. B) polarized, as negatively charged atoms are admitted. C) depolarized, as positively charged atoms are admitted. D) depolarized, as negatively charged atoms are admitted ...
psych mod 4 terms
... functions include processing sensory info. from body parts, which includes touching, locating positions of limbs, and feeling temperature and pain, and carrying out several cognitive functions, such as attending to and perceiving objects. 29. Somatosensory Cortex- a narrow strip of cortex that is lo ...
... functions include processing sensory info. from body parts, which includes touching, locating positions of limbs, and feeling temperature and pain, and carrying out several cognitive functions, such as attending to and perceiving objects. 29. Somatosensory Cortex- a narrow strip of cortex that is lo ...
Activity 2 The Brain and Drugs - URMC
... (receiving branches) and a long axon (conducting branch). The axon is covered by an insulating myelin sheath. The axon ends in branches with terminal branches (sending branches). The knobs on the ends of the terminal branches contain vesicles that store and release neurotransmitters. Neurons conduct ...
... (receiving branches) and a long axon (conducting branch). The axon is covered by an insulating myelin sheath. The axon ends in branches with terminal branches (sending branches). The knobs on the ends of the terminal branches contain vesicles that store and release neurotransmitters. Neurons conduct ...
Lecture 02Spring10
... A neural impulse. A brief electrical charge that travels down an axon and is generated by the movement of positively charged atoms in and out of channels in the axon’s membrane. ...
... A neural impulse. A brief electrical charge that travels down an axon and is generated by the movement of positively charged atoms in and out of channels in the axon’s membrane. ...
Skin sense/touch
... Your task is as follows…You and a partner (if you want one) are in a contest with other class members to create, using any edible medium, the ‘best’ model of the eye or the ear. The winners in each organ will receive a prize! I am restricting you to the eye and ear, because these two senses seem to ...
... Your task is as follows…You and a partner (if you want one) are in a contest with other class members to create, using any edible medium, the ‘best’ model of the eye or the ear. The winners in each organ will receive a prize! I am restricting you to the eye and ear, because these two senses seem to ...
Think About the Dendrites We`ve Been Talking About
... separate regions devoted to shape, color, location, & movement that extend beyond occipital lobe. ...
... separate regions devoted to shape, color, location, & movement that extend beyond occipital lobe. ...
CV-4-2014
... • Arterial baroreceptors – Carotid sinus receptor – Aortic arch receptor • Afferent nerves (Buffer nerves) • Cardiovascular center: medulla • Efferent nerves: cardiac sympathetic nerve, sympathetic constrictor nerve, vagus nerve • Effector: heart & blood vessels ...
... • Arterial baroreceptors – Carotid sinus receptor – Aortic arch receptor • Afferent nerves (Buffer nerves) • Cardiovascular center: medulla • Efferent nerves: cardiac sympathetic nerve, sympathetic constrictor nerve, vagus nerve • Effector: heart & blood vessels ...
Chapter 3
... Guidepost cells serve as a map; when the filopodia reach them, the growth cone adheres to that cell and the guidepost cells redirect axonal growth to target cells. Neurotrophins released by the target cell • Attract the filopodia of developing neurons • Repels others to ensure only appropriate axo ...
... Guidepost cells serve as a map; when the filopodia reach them, the growth cone adheres to that cell and the guidepost cells redirect axonal growth to target cells. Neurotrophins released by the target cell • Attract the filopodia of developing neurons • Repels others to ensure only appropriate axo ...
Aotearoa Neuroscience Postdoctoral Fellow Projects
... development and continues to impact on normal brain function as well as being a major drug target for known neuroactive pharmaceuticals and in novel drug design. How the inhibitory system works in the normal brain, and how it is altered in brain diseases, is well studied but poorly understood. In th ...
... development and continues to impact on normal brain function as well as being a major drug target for known neuroactive pharmaceuticals and in novel drug design. How the inhibitory system works in the normal brain, and how it is altered in brain diseases, is well studied but poorly understood. In th ...
Human Nervous System Central nervous system
... Accept nerve impulses from the CNS Transmit them to muscles or glands ...
... Accept nerve impulses from the CNS Transmit them to muscles or glands ...
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.