Introductory Psychology Concepts
... Introductory Psychology Concepts: The Neuron and the Synapse Identify parts of the neuron and synapse and describe how they communicate information. ...
... Introductory Psychology Concepts: The Neuron and the Synapse Identify parts of the neuron and synapse and describe how they communicate information. ...
Chapter 15
... regions that are innervated from the same spinal segments as the heart.! • The pain is generally referred to proximal, but not distal, somatic structures.! • The referred pain is experienced as deep (slow) pain.! ...
... regions that are innervated from the same spinal segments as the heart.! • The pain is generally referred to proximal, but not distal, somatic structures.! • The referred pain is experienced as deep (slow) pain.! ...
Biology and Behavior
... neurons and pass the message from through the cell body. 3. The axon take that information or “message” and carries it away from the neuron to get ready to be sent to another neuron 4. Axons are covered in myelin, (myelin sheath) which helps insulate and protect the axon, and also helps speed up the ...
... neurons and pass the message from through the cell body. 3. The axon take that information or “message” and carries it away from the neuron to get ready to be sent to another neuron 4. Axons are covered in myelin, (myelin sheath) which helps insulate and protect the axon, and also helps speed up the ...
Sensory Nerves and Receptors
... Each receptor is highly sensitive to a certain type of stimulus which is called the "adequate stimulus" for this receptor (B) EXCITABILITY (THE GENERATOR OR THE RECEPTOR POTENTIAL) ...
... Each receptor is highly sensitive to a certain type of stimulus which is called the "adequate stimulus" for this receptor (B) EXCITABILITY (THE GENERATOR OR THE RECEPTOR POTENTIAL) ...
Muscular System
... • Each motor neuron and its associated muscle cells = a motor unit. Figure 10.14 p. 291. • The number of muscle fibers controlled by a motor unit will depend on the function of the muscle. Examples: o A power muscle such as the gluteus maximus or gastrocnemius will have a motor unit that controls ma ...
... • Each motor neuron and its associated muscle cells = a motor unit. Figure 10.14 p. 291. • The number of muscle fibers controlled by a motor unit will depend on the function of the muscle. Examples: o A power muscle such as the gluteus maximus or gastrocnemius will have a motor unit that controls ma ...
Chapter 13: Peripheral Nervous System
... Motor functions include facial expression, and the transmittal of autonomic impulses to lacrimal and salivary glands Sensory function is taste from the anterior two-thirds of the ...
... Motor functions include facial expression, and the transmittal of autonomic impulses to lacrimal and salivary glands Sensory function is taste from the anterior two-thirds of the ...
Neurotransmitter Parameter Definitions
... GABA is a true neurotransmitter and is the major inhibitory neurotransmitter of the brain, occurring in 3040% of all synapses. GABA is second only to glutamate, the brain's major excitatory neurotransmitter. The GABA concentration in the brain is 200-1000 times greater than that of the monoamines or ...
... GABA is a true neurotransmitter and is the major inhibitory neurotransmitter of the brain, occurring in 3040% of all synapses. GABA is second only to glutamate, the brain's major excitatory neurotransmitter. The GABA concentration in the brain is 200-1000 times greater than that of the monoamines or ...
Review of Musculoskeletal System
... much joint function as possible • Resting the joint, or binding or splinting • Use of hot and cold packs • Diet high in calories and vitamins • Strengthening of associated muscles ...
... much joint function as possible • Resting the joint, or binding or splinting • Use of hot and cold packs • Diet high in calories and vitamins • Strengthening of associated muscles ...
APCHAPTER14
... THE ANS • Hypertension, or high blood pressure, may result from an overactive sympathetic vasoconstrictor response due to continuous high levels of stress • Raynaud’s disease is characterized by intermittent attacks causing the skin of the fingers and the toes to become pale, then cyanotic and painf ...
... THE ANS • Hypertension, or high blood pressure, may result from an overactive sympathetic vasoconstrictor response due to continuous high levels of stress • Raynaud’s disease is characterized by intermittent attacks causing the skin of the fingers and the toes to become pale, then cyanotic and painf ...
Nervous System - Neuron and Nerve Impulse PowerPoint
... – A nerve impulse is self-propagating; that is, the flow of ions at the point of the impulse causes sodium channels just ahead of it to open. This allows the impulse to move rapidly along the axon. – The flow of an impulse can be compared to the fall of a row of dominoes. As each domino falls, it ca ...
... – A nerve impulse is self-propagating; that is, the flow of ions at the point of the impulse causes sodium channels just ahead of it to open. This allows the impulse to move rapidly along the axon. – The flow of an impulse can be compared to the fall of a row of dominoes. As each domino falls, it ca ...
PDF
... correlations of neuronal activity in mammalian cortex (Singer, 1993). The functional implications of this correlated activity are hotly debated (Roskies et al., 1999). Nevertheless, it is generally considered a widespread feature of cortical dynamics. In recent years, another line of research has at ...
... correlations of neuronal activity in mammalian cortex (Singer, 1993). The functional implications of this correlated activity are hotly debated (Roskies et al., 1999). Nevertheless, it is generally considered a widespread feature of cortical dynamics. In recent years, another line of research has at ...
Information Processing.indd - Foundations of Exercise Science
... just as a gun cannot be fired a second time until the first shot is complete. In other words, an absolute refractory period exists (about a millisecond) – a period in which a second action potential is not possible. After this period, neurons enter what is called a relative refractory period of seve ...
... just as a gun cannot be fired a second time until the first shot is complete. In other words, an absolute refractory period exists (about a millisecond) – a period in which a second action potential is not possible. After this period, neurons enter what is called a relative refractory period of seve ...
Somatic sensations
... Mechanoreceptors in skeletal muscle, joints, tendons, ligaments, and skin are responsible for awareness of the body’s position and of its ...
... Mechanoreceptors in skeletal muscle, joints, tendons, ligaments, and skin are responsible for awareness of the body’s position and of its ...
Chapter 16: Autonomic Nervous System
... 1. List the two structural types of cholinergic receptors: a. ______________________________ b. ______________________________ 2. Which type of receptor is found on the membranes of all postganglionic neurons? ______________________________ 3. Which type of receptor is found on the membranes of effe ...
... 1. List the two structural types of cholinergic receptors: a. ______________________________ b. ______________________________ 2. Which type of receptor is found on the membranes of all postganglionic neurons? ______________________________ 3. Which type of receptor is found on the membranes of effe ...
MS WORD file
... muscle receptor organs (MROs) in the abdomen of crayfish (Eckert, 1961a,b; McCarthy and MacMillan, 1995). The mechanoreceptors in crayfish abdomen MROs transduce a stretch stimulus in the sensory endings, embedded in a muscle, into a graded receptor potential. When potential exceeds a threshold, an ...
... muscle receptor organs (MROs) in the abdomen of crayfish (Eckert, 1961a,b; McCarthy and MacMillan, 1995). The mechanoreceptors in crayfish abdomen MROs transduce a stretch stimulus in the sensory endings, embedded in a muscle, into a graded receptor potential. When potential exceeds a threshold, an ...
Muscle Receptor Organs in the Crayfish Abdomen: A Student
... muscle receptor organs (MROs) in the abdomen of crayfish (Eckert, 1961a,b; McCarthy and MacMillan, 1995). The mechanoreceptors in crayfish abdomen MROs transduce a stretch stimulus in the sensory endings, embedded in a muscle, into a graded receptor potential. When potential exceeds a threshold, an ...
... muscle receptor organs (MROs) in the abdomen of crayfish (Eckert, 1961a,b; McCarthy and MacMillan, 1995). The mechanoreceptors in crayfish abdomen MROs transduce a stretch stimulus in the sensory endings, embedded in a muscle, into a graded receptor potential. When potential exceeds a threshold, an ...
ch_12_lecture_presentation
... An Introduction to the Nervous System • Learning Outcomes • 12-7 Describe the structure of a synapse, and explain the mechanism involved in synaptic activity. • 12-8 Describe the major types of neurotransmitters and neuromodulators, and discuss their effects on postsynaptic membranes. ...
... An Introduction to the Nervous System • Learning Outcomes • 12-7 Describe the structure of a synapse, and explain the mechanism involved in synaptic activity. • 12-8 Describe the major types of neurotransmitters and neuromodulators, and discuss their effects on postsynaptic membranes. ...
Overview Synaptic plasticity Synaptic strength
... When an axon of cell A is near enough to excite cell B and repeatedly or persistently takes part in firing it, some growth processes or metabolic change takes place in one or both cells so that A‘s efficiency ... is increased. ...
... When an axon of cell A is near enough to excite cell B and repeatedly or persistently takes part in firing it, some growth processes or metabolic change takes place in one or both cells so that A‘s efficiency ... is increased. ...
REM-off
... (e.g., NE, HA, ACh, DA, 5-HT). That is, the neuromodulator may change the ‘functional anatomy’ of the brain. For example, when neuron A (presynaptic), having fired an action potential, releases the neurotransmitter glutamate onto neuron B (postsynaptic), ionotropic receptors are activated resulting ...
... (e.g., NE, HA, ACh, DA, 5-HT). That is, the neuromodulator may change the ‘functional anatomy’ of the brain. For example, when neuron A (presynaptic), having fired an action potential, releases the neurotransmitter glutamate onto neuron B (postsynaptic), ionotropic receptors are activated resulting ...
D22 - Viktor`s Notes for the Neurosurgery Resident
... facilitation) – more muscle fibers are responding. – postactivation facilitation is followed by longer-lasting period of depression, maximal between 2 and 4 min after conditioning exercise period and lasting for 10 min (postactivation exhaustion). miniature endplate potentials have subnormal ampli ...
... facilitation) – more muscle fibers are responding. – postactivation facilitation is followed by longer-lasting period of depression, maximal between 2 and 4 min after conditioning exercise period and lasting for 10 min (postactivation exhaustion). miniature endplate potentials have subnormal ampli ...
Motor functions
... needle electrode examination (EMG). • These abnormalities appear only 2-3 weeks after nerve lesion (injury). ...
... needle electrode examination (EMG). • These abnormalities appear only 2-3 weeks after nerve lesion (injury). ...
File
... A coating of fatty tissue along the axon which insulates the neuron and prevents information from spreading to other neurons. ...
... A coating of fatty tissue along the axon which insulates the neuron and prevents information from spreading to other neurons. ...
408 3 Physiology and Anatomy for the Speed and Power
... Muscle Anatomy and Hierarchical Structure. Muscle anatomy, or architecture, refers to the arrangement of muscle fibers and tendon and their effects on force generation abilities. Muscles show a tiered or hierarchical structure with the largest unit being the whole muscle and the smallest contractile ...
... Muscle Anatomy and Hierarchical Structure. Muscle anatomy, or architecture, refers to the arrangement of muscle fibers and tendon and their effects on force generation abilities. Muscles show a tiered or hierarchical structure with the largest unit being the whole muscle and the smallest contractile ...
Neurons - Sonoma Valley High School
... – An imlpulse is a change in the electrical charge (potential) on the membrane of the neuron. – Due to ions moving into and out of the neuron. ...
... – An imlpulse is a change in the electrical charge (potential) on the membrane of the neuron. – Due to ions moving into and out of the neuron. ...
End-plate potential
End plate potentials (EPPs) are the depolarizations of skeletal muscle fibers caused by neurotransmitters binding to the postsynaptic membrane in the neuromuscular junction. They are called ""end plates"" because the postsynaptic terminals of muscle fibers have a large, saucer-like appearance. When an action potential reaches the axon terminal of a motor neuron, vesicles carrying neurotransmitters (mostly acetylcholine) are exocytosed and the contents are released into the neuromuscular junction. These neurotransmitters bind to receptors on the postsynaptic membrane and lead to its depolarization. In the absence of an action potential, acetylcholine vesicles spontaneously leak into the neuromuscular junction and cause very small depolarizations in the postsynaptic membrane. This small response (~0.5mV) is called a miniature end plate potential (MEPP) and is generated by one acetylcholine-containing vesicle. It represents the smallest possible depolarization which can be induced in a muscle.