Hair cells
... When the head rotates, the semicircular canal fluid pushes against the cupula, causing the cilia to bend -Bending in the direction of the kinocilium causes a receptor potential -Stimulates an action potential in the associated sensory neuron Saccule, utricle and semicircular canals are collectively ...
... When the head rotates, the semicircular canal fluid pushes against the cupula, causing the cilia to bend -Bending in the direction of the kinocilium causes a receptor potential -Stimulates an action potential in the associated sensory neuron Saccule, utricle and semicircular canals are collectively ...
Ch. 48 - 49
... Describe the main parts of a neuron. Describe what happens in a Reflex Arc. How are Nodes of Ranvier and Saltatory conduction related? What occurs at the synapse? ...
... Describe the main parts of a neuron. Describe what happens in a Reflex Arc. How are Nodes of Ranvier and Saltatory conduction related? What occurs at the synapse? ...
Study Guide 1
... 2. Describe the basic flow of information in most sensory systems starting with an external stimulus and ending in the cerebral cortex. 3. What are the chemical senses? Why are they important? 4. Where are the receptor cells for taste located, and what are they called? 5. How does transduction occur ...
... 2. Describe the basic flow of information in most sensory systems starting with an external stimulus and ending in the cerebral cortex. 3. What are the chemical senses? Why are they important? 4. Where are the receptor cells for taste located, and what are they called? 5. How does transduction occur ...
1. Intro to Nervous System WEB
... • Action potentials (nerve impulses) start at the axon hillock & travel along the axon to the axon terminal • Arrival of action potential causes the release of neurotransmitters across a synapse to the dentrites of the next neuron • Neurotransmitters can excite or inhibit the next neuron ...
... • Action potentials (nerve impulses) start at the axon hillock & travel along the axon to the axon terminal • Arrival of action potential causes the release of neurotransmitters across a synapse to the dentrites of the next neuron • Neurotransmitters can excite or inhibit the next neuron ...
UNIT 2: Internal geological agents
... Its answer is rapid and does not last long Its answer is slow and lasts long It consists of neurons which transmit It consists og endocrine glands which release information through electrical and chemical hormons signals. A -Nervous system: It follows the following pathway: Stimulus→Repectors→Effect ...
... Its answer is rapid and does not last long Its answer is slow and lasts long It consists of neurons which transmit It consists og endocrine glands which release information through electrical and chemical hormons signals. A -Nervous system: It follows the following pathway: Stimulus→Repectors→Effect ...
Mind Is Matter
... Nodes of Ranvier 3. Describe the direction of communication within a neuron and between two neurons. 4. Identify the various structures with the synaptic cleft (synapse) from a diagram. Describe the function of each structure. Presynaptic membrane Postsynaptic membrane Neurotransmitter Vesicle Recep ...
... Nodes of Ranvier 3. Describe the direction of communication within a neuron and between two neurons. 4. Identify the various structures with the synaptic cleft (synapse) from a diagram. Describe the function of each structure. Presynaptic membrane Postsynaptic membrane Neurotransmitter Vesicle Recep ...
6th Study Guide D1w:ans
... 3. The gap or space between the axon of one neuron and the dendrite of another is called a synapse. 4. The part of the brain that allows you to think is the cerebrum. 5. The sense of smell is closely linked to the sense of taste. 6. The cones are the part of the eye that is sensitive to color. 7. Th ...
... 3. The gap or space between the axon of one neuron and the dendrite of another is called a synapse. 4. The part of the brain that allows you to think is the cerebrum. 5. The sense of smell is closely linked to the sense of taste. 6. The cones are the part of the eye that is sensitive to color. 7. Th ...
Nerve cord
... Allows animals to detect and process signals to react to them Stimulus: a signal that causes an animal to react Example: touch, sound, smells, tastes Response: an animal’s reaction to a stimulus ...
... Allows animals to detect and process signals to react to them Stimulus: a signal that causes an animal to react Example: touch, sound, smells, tastes Response: an animal’s reaction to a stimulus ...
ch. 48 Nervous System notes
... Interneurons: integrate sensory input and motor output (carry stimuli in the brain and spinal cord) Motor Neurons: convey impulses from CNS to effector cells in muscles or glands Glial cells: support, protect, and nourish neurons ...
... Interneurons: integrate sensory input and motor output (carry stimuli in the brain and spinal cord) Motor Neurons: convey impulses from CNS to effector cells in muscles or glands Glial cells: support, protect, and nourish neurons ...
Name
... _____ 2. Specialized cells that myelinate the fibers of neurons found in the PNS _____ 3. Junction or point of close contact between neurons. _____ 4. Bundle of nerve processes inside the CNS _____ 5. Neuron, serving as part of the conduction pathway between sensory and motor neurons _____ 6. Gaps i ...
... _____ 2. Specialized cells that myelinate the fibers of neurons found in the PNS _____ 3. Junction or point of close contact between neurons. _____ 4. Bundle of nerve processes inside the CNS _____ 5. Neuron, serving as part of the conduction pathway between sensory and motor neurons _____ 6. Gaps i ...
Ch 8 Neurons and Network properties part-1
... Now let’s try to think about a living excitable cell… ...
... Now let’s try to think about a living excitable cell… ...
Nervous System
... The nervous system runs on electricity • Current- The movement of charge (electrons or ions) • Voltage- potential energy stored in a charge disparity over distance • Nervous system uses ions (Na+, K+, Cl-, Ca++) to send signals from one neuron to another ...
... The nervous system runs on electricity • Current- The movement of charge (electrons or ions) • Voltage- potential energy stored in a charge disparity over distance • Nervous system uses ions (Na+, K+, Cl-, Ca++) to send signals from one neuron to another ...
C13 Lesson 2 extra credit
... is the part of a complex animal’s nervous system that receives information, interprets it, and controls the animal’s response. 3. Eyes and ears are examples of 4. The odor of baking bread is an example of a(n) 5. A(n) system. ...
... is the part of a complex animal’s nervous system that receives information, interprets it, and controls the animal’s response. 3. Eyes and ears are examples of 4. The odor of baking bread is an example of a(n) 5. A(n) system. ...
Psychophysics ppt. - Ms. Engel @ South
... Three steps of sensory processing: Physical stimulusPhysiological responseSensory or psychological experience • Physical stimulus: light energy, sound energy, pressure, chemical (taste), etc • Physiological response: receptor potential in the sensory receptor which causes a change in the release ...
... Three steps of sensory processing: Physical stimulusPhysiological responseSensory or psychological experience • Physical stimulus: light energy, sound energy, pressure, chemical (taste), etc • Physiological response: receptor potential in the sensory receptor which causes a change in the release ...
Nervous Tissue
... – Inside (+) ions move from stimuli site to neighboring () areas – Outside (+) ions move toward stimuli site ...
... – Inside (+) ions move from stimuli site to neighboring () areas – Outside (+) ions move toward stimuli site ...
2.7 notes
... • Process where various forms of outside stimuli become neural signals in the brain – Transduction: • Converting outside stimuli into neural activity ...
... • Process where various forms of outside stimuli become neural signals in the brain – Transduction: • Converting outside stimuli into neural activity ...
Sensory function
... 10 and 20 million olfactory cells located within olfactory epithelium high in the roof of the nasal cavity. ...
... 10 and 20 million olfactory cells located within olfactory epithelium high in the roof of the nasal cavity. ...
Neurophysiology Complete
... Excitability: the ability to respond to stimuli and convert it to nerve impulses Conductivity: the ability to transmit the impulse to other neurons, muscles or glands In a resting neuron, the outside is more positive than the inside Resting membrane potential: the difference in electrical charges th ...
... Excitability: the ability to respond to stimuli and convert it to nerve impulses Conductivity: the ability to transmit the impulse to other neurons, muscles or glands In a resting neuron, the outside is more positive than the inside Resting membrane potential: the difference in electrical charges th ...
Organization of the Nervous System
... Neuron pumps 3 Na ions out for every 2 K ions it pumps in. At rest, there are more Na ions outside and more K ions inside Resting & Action Potential ...
... Neuron pumps 3 Na ions out for every 2 K ions it pumps in. At rest, there are more Na ions outside and more K ions inside Resting & Action Potential ...
Organization of the Nervous System
... Neuron pumps 3 Na ions out for every 2 K ions it pumps in. At rest, there are more Na ions outside and more K ions inside Resting & Action Potential ...
... Neuron pumps 3 Na ions out for every 2 K ions it pumps in. At rest, there are more Na ions outside and more K ions inside Resting & Action Potential ...
File
... STRUCTURE OF A NEURONE Receptors are special nerve endings found within our skin and include: touch, pain, pressure and temperature receptors. It is their job to detect changes in the environment. These changes, known as stimuli may include temperature changes, pain or pressure, are carried in the f ...
... STRUCTURE OF A NEURONE Receptors are special nerve endings found within our skin and include: touch, pain, pressure and temperature receptors. It is their job to detect changes in the environment. These changes, known as stimuli may include temperature changes, pain or pressure, are carried in the f ...
Lecture #21 Date
... A neuron is like a French Fry: high Na+ outside, high K+ (POTassium/potato) inside!!! During the AP, we will turn our axon INSIDE OUT!!! To fire an action potential, we have to be at resting potential (-70 mV), maintained by closed Na+ and K+ channels If enough NT molecules are picked up by dendrite ...
... A neuron is like a French Fry: high Na+ outside, high K+ (POTassium/potato) inside!!! During the AP, we will turn our axon INSIDE OUT!!! To fire an action potential, we have to be at resting potential (-70 mV), maintained by closed Na+ and K+ channels If enough NT molecules are picked up by dendrite ...
THE NERVOUS SYSTEM: Communication
... 2. Integrative Function – information is “brought together,” interpreted, to create sensations, create thoughts, add to memory, make decisions, etc. Association neuron or interneuron 3. Motor Function – responses to signals (impulses). Signals sent from the CNS to effectors (muscles or glands). The ...
... 2. Integrative Function – information is “brought together,” interpreted, to create sensations, create thoughts, add to memory, make decisions, etc. Association neuron or interneuron 3. Motor Function – responses to signals (impulses). Signals sent from the CNS to effectors (muscles or glands). The ...
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.