BIOL 273 Midterm #1 Notes
... membrane is “directly accessing” extracellular fluid – and so it seems like the action potential is jumping from node to node – this is called saltatory conduction ...
... membrane is “directly accessing” extracellular fluid – and so it seems like the action potential is jumping from node to node – this is called saltatory conduction ...
Gpr126 is essential for peripheral nerve development and
... Fig. 1. Gpr126–/– mice have limb and nerve abnormalities. (A)Diagrams of Gpr126 gene (top) and Gpr126 protein (bottom). In the Gpr126 gene, exons 1 and 23 are denoted, as is the targeted locus (red arrows). The protein diagram depicts functional domains in Gpr126: CUB domain (Complement, Uegf, Bmp1 ...
... Fig. 1. Gpr126–/– mice have limb and nerve abnormalities. (A)Diagrams of Gpr126 gene (top) and Gpr126 protein (bottom). In the Gpr126 gene, exons 1 and 23 are denoted, as is the targeted locus (red arrows). The protein diagram depicts functional domains in Gpr126: CUB domain (Complement, Uegf, Bmp1 ...
Median filters
... signals or images. It is particularly effective in removing non-Gaussian, impulsive noise. The standard median filter is characterised by the following method: the output value of the median filter is that input sample value, which is located in the center of the list of ordered samples. The samplin ...
... signals or images. It is particularly effective in removing non-Gaussian, impulsive noise. The standard median filter is characterised by the following method: the output value of the median filter is that input sample value, which is located in the center of the list of ordered samples. The samplin ...
sensory1
... modality, intensity, location, and duration of external stimuli. • Transduction: the conversion of a physical stimulus into a change in membrane potential (electrochemical signal) – Signals are transmitted in the form of graded potentials, action potentials, and synaptic interaction • Receptors: cel ...
... modality, intensity, location, and duration of external stimuli. • Transduction: the conversion of a physical stimulus into a change in membrane potential (electrochemical signal) – Signals are transmitted in the form of graded potentials, action potentials, and synaptic interaction • Receptors: cel ...
REVIEW GAME Final Exam PART I
... a) Active transport uses ATP as an energy source. b) Active transport can move a solute against its concentration gradient. c) Active transport requires the cell to expend energy. d) Active transport is driven by the potential energy represented by a concentration gradient. ATP is an energy source t ...
... a) Active transport uses ATP as an energy source. b) Active transport can move a solute against its concentration gradient. c) Active transport requires the cell to expend energy. d) Active transport is driven by the potential energy represented by a concentration gradient. ATP is an energy source t ...
Notes - Scioly.org
... the myelin sheath known as nodes of Ranvier (they are also known as myelin sheath gaps). They occur in intervals of about 1 millimeter. The bulge is actually a cell called a Schwann cell that is rolled around the axon numerous times. The axon eventually leads into 10,000+ terminal branches/telodendr ...
... the myelin sheath known as nodes of Ranvier (they are also known as myelin sheath gaps). They occur in intervals of about 1 millimeter. The bulge is actually a cell called a Schwann cell that is rolled around the axon numerous times. The axon eventually leads into 10,000+ terminal branches/telodendr ...
Specificity of Synaptic Connections II (i.e. Target Selection by Axons)
... Axons grow into the target in topographic order. (Not known how.) Axons from double half eyes grow only in the correct half of the pathway. Retinal axons recognize other retinal axons based on position. (Bonhoeffer’s Y maze) ...
... Axons grow into the target in topographic order. (Not known how.) Axons from double half eyes grow only in the correct half of the pathway. Retinal axons recognize other retinal axons based on position. (Bonhoeffer’s Y maze) ...
Quiz 6 study guide
... N16. If a neurotransmitter causes chloride ions to flow into a postsynaptic neuron, the resulting change in membrane potential would be considered an ________ post-synaptic potential (_PSP) and thus would make threshold ______ likely to be reached. N17. Contrast the effects of an acetylcholinesteras ...
... N16. If a neurotransmitter causes chloride ions to flow into a postsynaptic neuron, the resulting change in membrane potential would be considered an ________ post-synaptic potential (_PSP) and thus would make threshold ______ likely to be reached. N17. Contrast the effects of an acetylcholinesteras ...
Autonomic Nervous System
... brain pass to ganglia through cranial nerves – Preganglionic axons from sacral region pass through pelvic nerves to ganglia ...
... brain pass to ganglia through cranial nerves – Preganglionic axons from sacral region pass through pelvic nerves to ganglia ...
PDF
... neurons occurs. We have two questions to ask about this nerve pattern: How is it formed and how does it influence the organization of differentiation within the ganglia ? (1) How is the pattern formed1} Because of the relatively large size and constant position of the cells concerned we can show tha ...
... neurons occurs. We have two questions to ask about this nerve pattern: How is it formed and how does it influence the organization of differentiation within the ganglia ? (1) How is the pattern formed1} Because of the relatively large size and constant position of the cells concerned we can show tha ...
An Introduction to the Nervous System
... the membrane’s permeability to these ions is very low • Na+ has only a small effect on the normal resting potential, making it just ...
... the membrane’s permeability to these ions is very low • Na+ has only a small effect on the normal resting potential, making it just ...
The NERVOUS SYSTEM
... Outside of cell has + charge, inside has – This is a potential difference, called membrane potential Unit = Volt (V) [cell membrane potential usu. measured in ...
... Outside of cell has + charge, inside has – This is a potential difference, called membrane potential Unit = Volt (V) [cell membrane potential usu. measured in ...
Antipyretic-analgesic and antiinflammatory drugs
... temporary loss of sensation without a loss of consciousness. (2) Unlike general anesthetics, they normally do not cause central nervous system (CNS) depression. ...
... temporary loss of sensation without a loss of consciousness. (2) Unlike general anesthetics, they normally do not cause central nervous system (CNS) depression. ...
Lecture 4: Cellular Building Blocks
... The composition of a membrane regulates the degree of its fluidity • Membrane lipids with fatty acyl side chains that are saturated (no double bonds) pack tightly in the membrane and make it less fluid • Lipids that are unsaturated (1, 2, or 3 double bonds) pack loosely and make it more fluid ...
... The composition of a membrane regulates the degree of its fluidity • Membrane lipids with fatty acyl side chains that are saturated (no double bonds) pack tightly in the membrane and make it less fluid • Lipids that are unsaturated (1, 2, or 3 double bonds) pack loosely and make it more fluid ...
Relational Query Optimization
... entry, if box E overlaps Q,
search subtree identified by ptr.
2. If current node is leaf, for each entry
, if E overlaps Q, rid identifies
an object that might overlap Q.
Note: May have to search several subtrees at each node!
(In contrast, a B-tree equality search goes to just one ...
... entry
Relational Query Optimization
... entry, if box E overlaps Q,
search subtree identified by ptr.
2. If current node is leaf, for each entry
, if E overlaps Q, rid identifies
an object that might overlap Q.
Note: May have to search several subtrees at each node!
(In contrast, a B-tree equality search goes to just one ...
... entry
Chapter 3
... Neurons are electrically excitable due to the voltage difference across their membrane Communicate with 2 types of electric signals ...
... Neurons are electrically excitable due to the voltage difference across their membrane Communicate with 2 types of electric signals ...
Biology of the Mind Neural and Hormonal Systems
... Sensory neurons: (Afferent) Carry signals from the outer parts of your body (periphery) toward the central nervous system. Motor neurons: (motoneurons) (Efferent) Carry signals away from the central nervous system to the outer parts (muscles, skin, glands) of your body. Receptors: Sense the environm ...
... Sensory neurons: (Afferent) Carry signals from the outer parts of your body (periphery) toward the central nervous system. Motor neurons: (motoneurons) (Efferent) Carry signals away from the central nervous system to the outer parts (muscles, skin, glands) of your body. Receptors: Sense the environm ...
Function and Metabolism of Phospholipids in the Central and
... A fascinating topic touched upon in the conference is the turnover and maintenance of myelin phospholipids. Horrocks et al. describe a method for the correct calculation of the proportions of fast- and slow-turning-over pools of phospholipids. Application of the method to myelin and microsomal fract ...
... A fascinating topic touched upon in the conference is the turnover and maintenance of myelin phospholipids. Horrocks et al. describe a method for the correct calculation of the proportions of fast- and slow-turning-over pools of phospholipids. Application of the method to myelin and microsomal fract ...
1 FORM W have 4 points deducted if you fail to do this!!!!!!
... a) the Na+ leak cycle b) the Na+-K+-ATPase pump c) the K+ leak cycle d) A- moving down its concentration gradient e) a and b occurring together 6) Which of the following descriptions INCORRECTLY describes the tissue type? a) Muscle tissue is specialized for contraction and generation of force. b) Ep ...
... a) the Na+ leak cycle b) the Na+-K+-ATPase pump c) the K+ leak cycle d) A- moving down its concentration gradient e) a and b occurring together 6) Which of the following descriptions INCORRECTLY describes the tissue type? a) Muscle tissue is specialized for contraction and generation of force. b) Ep ...
Autonomic Nervous System
... Depolarization Nerve impulse starts with local reversal of charge - depolarization Then spreads along the membrane with a sudden electrical change in the membrane (action potential) Depolarization is rapid Followed ...
... Depolarization Nerve impulse starts with local reversal of charge - depolarization Then spreads along the membrane with a sudden electrical change in the membrane (action potential) Depolarization is rapid Followed ...
Drugs Acting on the Central and Peripheral Nervous
... positive rush of ions is recorded. The electrical charge on the inside of the membrane changes from relatively negative to relatively positive. This sudden reversal of membrane potential, called the action potential (Figure 19.2), lasts less than a microsecond. Using the sodium–potassium pump, the c ...
... positive rush of ions is recorded. The electrical charge on the inside of the membrane changes from relatively negative to relatively positive. This sudden reversal of membrane potential, called the action potential (Figure 19.2), lasts less than a microsecond. Using the sodium–potassium pump, the c ...
Node of Ranvier
The nodes of Ranvier also known as myelin sheath gaps, are the gaps (approximately 1 micrometer in length) formed between the myelin sheaths generated by different cells. A myelin sheath is a many-layered coating, largely composed of a fatty substance called myelin, that wraps around the axon of a neuron and very efficiently insulates it. At nodes of Ranvier, the axonal membrane is uninsulated and, therefore, capable of generating electrical activity.