sensation.
... Look at the pictures below. Do you see a puzzle piece in the picture on the left? If you do, you have normal color vision. The picture on the right will give you an idea of how the color picture would look to someone that is totally colorblind. It is the same picture using shades of grey. Without th ...
... Look at the pictures below. Do you see a puzzle piece in the picture on the left? If you do, you have normal color vision. The picture on the right will give you an idea of how the color picture would look to someone that is totally colorblind. It is the same picture using shades of grey. Without th ...
Lesson 33 - UBC Zoology
... The supporting cells can make up more than 90% of the cells in the nervous system of some species. More complex organisms have more glial cells relative to neurons. These cells form a scaffolding or glue, which holds the tissue together. They assist the neurons by controlling the environment around ...
... The supporting cells can make up more than 90% of the cells in the nervous system of some species. More complex organisms have more glial cells relative to neurons. These cells form a scaffolding or glue, which holds the tissue together. They assist the neurons by controlling the environment around ...
A plastic axonal hotspot
... Neurons generate their output signal — the action potential — in a distinct region of the axon called the initial segment. The location and extent of this trigger zone can be modified by neural activity to control excitability. ...
... Neurons generate their output signal — the action potential — in a distinct region of the axon called the initial segment. The location and extent of this trigger zone can be modified by neural activity to control excitability. ...
Document
... – Selective serotonin reuptake inhibitors (SSRI’s) » Fluoxetine, paroxetine, sertraline (moderate inhibitors) » Can cause a 50 - 80% decrease in AUC levels of substrate drug » Weaker inhibitors ~ Venlafaxine, citalopram, fluvoxamine – Other moderate inhibitors: fluconazole, bupropion ...
... – Selective serotonin reuptake inhibitors (SSRI’s) » Fluoxetine, paroxetine, sertraline (moderate inhibitors) » Can cause a 50 - 80% decrease in AUC levels of substrate drug » Weaker inhibitors ~ Venlafaxine, citalopram, fluvoxamine – Other moderate inhibitors: fluconazole, bupropion ...
SUBSTANCE ABUSE: How Drugs Affect the Body
... Steps of Drug Abuse 1. Experimentation – users like the unusual feelings, and want to try it again 2. Tolerance – start increasing the amounts of the drug to reduce sensitivity ...
... Steps of Drug Abuse 1. Experimentation – users like the unusual feelings, and want to try it again 2. Tolerance – start increasing the amounts of the drug to reduce sensitivity ...
paperless tailored lower risk cost efficient
... procedures, and adopt standard protocols for their administration. It comprises two fundamental parts: ...
... procedures, and adopt standard protocols for their administration. It comprises two fundamental parts: ...
Why do plants make drugs for humans?
... Why would plants make drugs that are used by humans? More specifically, why would plants make drugs at all? Perhaps this may be explained by natural selection. The concept of natural selection was proposed by Charles Darwin in the late 1800’s as a cornerstone of his theory of evolution. The theory o ...
... Why would plants make drugs that are used by humans? More specifically, why would plants make drugs at all? Perhaps this may be explained by natural selection. The concept of natural selection was proposed by Charles Darwin in the late 1800’s as a cornerstone of his theory of evolution. The theory o ...
NERVOUS SYSTEM AND REFLEXES Introduction:
... Spinal nerves are paired, extending laterally from the spinal cord. Surrounding the spinal cord is the bone vertebral column. Each spinal nerve is composed of sensory neurons and motor neurons (mixed nerves). The sensory neurons carry information to the spinal cord and attach from the dorsal side of ...
... Spinal nerves are paired, extending laterally from the spinal cord. Surrounding the spinal cord is the bone vertebral column. Each spinal nerve is composed of sensory neurons and motor neurons (mixed nerves). The sensory neurons carry information to the spinal cord and attach from the dorsal side of ...
Tutorial 5: Sodium and Potassium Gradients at Rest
... (which form the outer and inner boundaries of the membrane where contact is made with extra-cellular fluids and cytoplasm) and two water-repelling tails (which form the internal layer of the membrane. The membrane is approximately eight nanometers thick, or less than 0.00001 millimeters. This molecu ...
... (which form the outer and inner boundaries of the membrane where contact is made with extra-cellular fluids and cytoplasm) and two water-repelling tails (which form the internal layer of the membrane. The membrane is approximately eight nanometers thick, or less than 0.00001 millimeters. This molecu ...
Exploring the Possible Mode of Anxiolytic Action
... for GABA receptor system e.g., flumazenil (GABAAbenzodiazepine binding site antagonist), picrotoxin (GABAA-chloride channel complex antagonist) and bicuculine (GABAA-GABA binding site antagonist). The flumazenil produces no marked behavioral effects, but can reverse almost all the pharmacological ac ...
... for GABA receptor system e.g., flumazenil (GABAAbenzodiazepine binding site antagonist), picrotoxin (GABAA-chloride channel complex antagonist) and bicuculine (GABAA-GABA binding site antagonist). The flumazenil produces no marked behavioral effects, but can reverse almost all the pharmacological ac ...
Neural Communication
... concentration in one area will tend to move, or diffuse, to an area of lower concentration. So, for example, when an ion is in high concentration on one side of a membrane a force will be propelling it to the other side, and, if the membrane is permeable to this ion (i.e., will allow the ion through ...
... concentration in one area will tend to move, or diffuse, to an area of lower concentration. So, for example, when an ion is in high concentration on one side of a membrane a force will be propelling it to the other side, and, if the membrane is permeable to this ion (i.e., will allow the ion through ...
The Nervous System
... brain; controls processes vital to physical functioning of the body • Reptilian complex: layer of brain over the brain stem. The seat of status and territory; enables more complicated behaviors in life. ...
... brain; controls processes vital to physical functioning of the body • Reptilian complex: layer of brain over the brain stem. The seat of status and territory; enables more complicated behaviors in life. ...
4._CNS_Tumors
... any apparent focal features may all indicate the presence of a tumor in the cerebrum. • Epilepsy is not a feature of posterior fossa tumors. • Epilepsy is not commonly caused by tumors, and less than 50% of cerebral tumors produce epilepsy, but the occurrence of epilepsy in adult life should prompt ...
... any apparent focal features may all indicate the presence of a tumor in the cerebrum. • Epilepsy is not a feature of posterior fossa tumors. • Epilepsy is not commonly caused by tumors, and less than 50% of cerebral tumors produce epilepsy, but the occurrence of epilepsy in adult life should prompt ...
File
... gradient and cause an increase in positive charge inside the cell, thereby raising the membrane potential. ...
... gradient and cause an increase in positive charge inside the cell, thereby raising the membrane potential. ...
Silva & White - Walker Bioscience
... BBB more easily than water –soluble substances. • Drugs and hormones with large molecular weights do not easily pass the BBB. • Some substances, including glucose and insulin, are actively transported into the brain. • The degree to which drugs cross the BBB is critical to their effects on memory. ...
... BBB more easily than water –soluble substances. • Drugs and hormones with large molecular weights do not easily pass the BBB. • Some substances, including glucose and insulin, are actively transported into the brain. • The degree to which drugs cross the BBB is critical to their effects on memory. ...
Module Four: The Brain
... - Protects brain cells from harmful substances and pathogens o Regulates what substances can move from the bloodstream into the interstitial fluid of the brain - Selectively permeable barrier formed by tight junctions that seal together the endothelial cells of brain capillaries o Permeable to liq ...
... - Protects brain cells from harmful substances and pathogens o Regulates what substances can move from the bloodstream into the interstitial fluid of the brain - Selectively permeable barrier formed by tight junctions that seal together the endothelial cells of brain capillaries o Permeable to liq ...
Adrenergic Agonists
... and interacts with the α1-receptors. A portion of the released Norepinephrine “circles back” and reacts with the α2-receptors on the neuronal membrane (see Figure 6.5). The stimulation of the α2-receptors causes feedback inhibition of the ongoing release of Norepinephrine from the stimulated adrener ...
... and interacts with the α1-receptors. A portion of the released Norepinephrine “circles back” and reacts with the α2-receptors on the neuronal membrane (see Figure 6.5). The stimulation of the α2-receptors causes feedback inhibition of the ongoing release of Norepinephrine from the stimulated adrener ...
Drug receptors and Pharmacodynamics
... Some receptor antagonists bind to the receptor at sites unrelated to the agonist binding site. Binding of this antagonist is not reversible or surmountable by increasing [agonist]. Other antagonists may form covalent bonds with the receptor at the agonist binding site and, therefore, form an irrever ...
... Some receptor antagonists bind to the receptor at sites unrelated to the agonist binding site. Binding of this antagonist is not reversible or surmountable by increasing [agonist]. Other antagonists may form covalent bonds with the receptor at the agonist binding site and, therefore, form an irrever ...
Senses - Peoria Public Schools
... Pain Receptors • Consist of free nerve endings are located in the skin and internal tissues, except the nervous tissue of the brain • Stimulated when tissue is damaged • Usually specific to the type of pain • Adapt very little, if at all ...
... Pain Receptors • Consist of free nerve endings are located in the skin and internal tissues, except the nervous tissue of the brain • Stimulated when tissue is damaged • Usually specific to the type of pain • Adapt very little, if at all ...
Insulin - Harper College
... effects • Ca growth usually faster in earlier stages. As tumor grows bld supply dec & growth rate dec. = drugs more effective against sm. tumors w/ sufficient bld supply • Cancer Chemotherapy - tumor cells are similar to normal cells in that it is difficult for antiCa drugs to be selective in killin ...
... effects • Ca growth usually faster in earlier stages. As tumor grows bld supply dec & growth rate dec. = drugs more effective against sm. tumors w/ sufficient bld supply • Cancer Chemotherapy - tumor cells are similar to normal cells in that it is difficult for antiCa drugs to be selective in killin ...
Action of and Resistance to drugs and toxic metals
... • Acts as a competetive inhibitor in synthesis of Folic acid • CoF participates in several biosynthetic reactions – aa, ...
... • Acts as a competetive inhibitor in synthesis of Folic acid • CoF participates in several biosynthetic reactions – aa, ...
7&8-Hypertension
... Mechanism of action: Converting enzyme inhibitors lower blood pressure by reducing angiotensin II, and also by increasing vasodilator peptides such as bradykinin. Dilatation of arteriol reduction of peripheral vascular resistance (afterload ) Increase of Na+ and decrease of K+ excretion in kidney ...
... Mechanism of action: Converting enzyme inhibitors lower blood pressure by reducing angiotensin II, and also by increasing vasodilator peptides such as bradykinin. Dilatation of arteriol reduction of peripheral vascular resistance (afterload ) Increase of Na+ and decrease of K+ excretion in kidney ...
Click here for handout
... 1954 US Army research 1970 used recreationally in US 1976 drug introduced to Shulgin 1977 Shulgin introduced MDMA to Leo Zeff who popularized its use in psychotherapy 1980s spread throughout UK rave culture ...
... 1954 US Army research 1970 used recreationally in US 1976 drug introduced to Shulgin 1977 Shulgin introduced MDMA to Leo Zeff who popularized its use in psychotherapy 1980s spread throughout UK rave culture ...