UNIT 4 – HOMEOSTASIS 8.1 – Human Body Systems and H
... miminum level of a stimulus required to produce a response (usually 50 mV) ...
... miminum level of a stimulus required to produce a response (usually 50 mV) ...
Review (10/25/16) updated
... Be careful with the ones in boxes. If he asks a test question about differences in phototransduction between rods and cones, C is not an answer. Color vision comes from having multiple cones that preferentially respond to different wavelengths. ...
... Be careful with the ones in boxes. If he asks a test question about differences in phototransduction between rods and cones, C is not an answer. Color vision comes from having multiple cones that preferentially respond to different wavelengths. ...
A1981LQ21400002
... target site at the molecular level. "We first developed an in vitro colchicine-binding assay to quantitate the amount of the target molecule. It was quickly demonstrated that cultures of dividing carcinoma cells contained a lot of the colchicine-binding receptor. But there was no reason to expect th ...
... target site at the molecular level. "We first developed an in vitro colchicine-binding assay to quantitate the amount of the target molecule. It was quickly demonstrated that cultures of dividing carcinoma cells contained a lot of the colchicine-binding receptor. But there was no reason to expect th ...
Developmental plasticity: Pruning
... partially by the process of synaptic pruning, together with trophic glial and vascular changes and or cell shrinkage. ...
... partially by the process of synaptic pruning, together with trophic glial and vascular changes and or cell shrinkage. ...
Saladin 5e Extended Outline
... 4. Neuron structure varies, and they are classified according to the number of processes extending from the stroma. (Fig. 12.5) a. Multipolar neurons are those with one axon and multiple dendrites; they are the most common type. b. Bipolar neurons have one axon and one dendrite; examples include olf ...
... 4. Neuron structure varies, and they are classified according to the number of processes extending from the stroma. (Fig. 12.5) a. Multipolar neurons are those with one axon and multiple dendrites; they are the most common type. b. Bipolar neurons have one axon and one dendrite; examples include olf ...
Synapses and Synaptic Transmission
... INTRODUCTION TO SYNAPSE: The CNS contains more than 100 billion neurons. Incoming signals enter the neuron through synapses located mostly on the neuronal dendrites, but also on the cell body. For different types of neurons, there may be only a few hundred or as many as 200,000 such synaptic connec ...
... INTRODUCTION TO SYNAPSE: The CNS contains more than 100 billion neurons. Incoming signals enter the neuron through synapses located mostly on the neuronal dendrites, but also on the cell body. For different types of neurons, there may be only a few hundred or as many as 200,000 such synaptic connec ...
Basis of Membrane Potential Action Potential Movie
... antisense expression constructs were injected into the rhinal cortex in order block the D2 gene (produces dopamine receptors) In operant conditioning trials, the technique turned “slacker monkeys” into efficient, hardworkers by suppressing their ability to anticipate a reward ...
... antisense expression constructs were injected into the rhinal cortex in order block the D2 gene (produces dopamine receptors) In operant conditioning trials, the technique turned “slacker monkeys” into efficient, hardworkers by suppressing their ability to anticipate a reward ...
The Nervous System
... The Membrane Potential (transmembrane potential) • Resting potential (the membrane potential of an undisturbed cell) • Excess negative charge inside the neuron • Created and maintained by Na-K ion pump • Negative voltage (potential) inside • -70 mV (0.07 Volts) Please review “Factors Responsible for ...
... The Membrane Potential (transmembrane potential) • Resting potential (the membrane potential of an undisturbed cell) • Excess negative charge inside the neuron • Created and maintained by Na-K ion pump • Negative voltage (potential) inside • -70 mV (0.07 Volts) Please review “Factors Responsible for ...
Issue 22_Pump Up the Volume
... acts as an anion transporter when it senses a change in transmembrane potential. Anion transporters are nothing new. Prestin, however, does not transport the anions but plays ping pong with them. It catches those floating around the cytoplasm and swings them to the other side of the membrane, in res ...
... acts as an anion transporter when it senses a change in transmembrane potential. Anion transporters are nothing new. Prestin, however, does not transport the anions but plays ping pong with them. It catches those floating around the cytoplasm and swings them to the other side of the membrane, in res ...
Classifications of Neurons 1. Function 2. Structure 3. Shape
... A. Cervical spinal cord B. Thoracic spinal cord C. Lumbar spinal cord D. Lumbo-sacral spinal cord ...
... A. Cervical spinal cord B. Thoracic spinal cord C. Lumbar spinal cord D. Lumbo-sacral spinal cord ...
02biologya
... How Neurons Communicate • Axon terminals release neurotransmitter. • Neurotransmitter enters synaptic gap. • Neurotransmitter binds to receptors that it fits. ...
... How Neurons Communicate • Axon terminals release neurotransmitter. • Neurotransmitter enters synaptic gap. • Neurotransmitter binds to receptors that it fits. ...
The Respiratory System:
... Microscopic Anatomy of Lung Lobule Describe the trends with respect to tissue organization (esp. the amount of smooth muscle and cartilage, and the type of epithelium) as you move into smaller branches of the bronchial tree. ...
... Microscopic Anatomy of Lung Lobule Describe the trends with respect to tissue organization (esp. the amount of smooth muscle and cartilage, and the type of epithelium) as you move into smaller branches of the bronchial tree. ...
P312Ch11_Auditory II (EarDetails)
... There is considerable evidence that the inner hair cells are the primary receptors with the outer hair cells serving an amplifying/modulating function, described in some detail in G8, p. 272 and 277. Show Virtual Lab 11-10 (Cilia Movement) and Virtual Lab 11-13 (Cochlear Amplifier) here to show the ...
... There is considerable evidence that the inner hair cells are the primary receptors with the outer hair cells serving an amplifying/modulating function, described in some detail in G8, p. 272 and 277. Show Virtual Lab 11-10 (Cilia Movement) and Virtual Lab 11-13 (Cochlear Amplifier) here to show the ...
Neural Pathways
... outside 3. channels then automatically close very quickly, but this causes the neighboring channels to open 4. it proceeds like a wave along the membrane to the tip of the axon 5. then it arrives at the synapse ...
... outside 3. channels then automatically close very quickly, but this causes the neighboring channels to open 4. it proceeds like a wave along the membrane to the tip of the axon 5. then it arrives at the synapse ...
Responses to stimulating multiple inputs
... b) What do the shapes and relative sizes of the currents observed in the voltage clamp experiments reveal about the properties of these channels and the equilibrium potential for this ...
... b) What do the shapes and relative sizes of the currents observed in the voltage clamp experiments reveal about the properties of these channels and the equilibrium potential for this ...
Option H Further Human Physiology
... ¾ The anterior pituitary is a separate glandular structure producing its own hormones. The release of these hormones is still controlled by the brain by another set of hormones, called releasing hormones, produced by the hypothalamus. An example is thyroid stimulating hormone (TSH) controlled by thy ...
... ¾ The anterior pituitary is a separate glandular structure producing its own hormones. The release of these hormones is still controlled by the brain by another set of hormones, called releasing hormones, produced by the hypothalamus. An example is thyroid stimulating hormone (TSH) controlled by thy ...
Document
... • Dendrites are thin, branched processes whose main function is to receive incoming signals. • They effectively increase the surface area of a neuron to increase its ability to communicate with other neurons. ...
... • Dendrites are thin, branched processes whose main function is to receive incoming signals. • They effectively increase the surface area of a neuron to increase its ability to communicate with other neurons. ...
REVIEW THE NERVOUS SYSTEM
... lines, linking all parts of the body to the CNS.__________________________________ nervous system. 34. The ________________________________________ nervous system does not come in contact with the environment. 35. The autonomic nervous system is divided into TWO divisions, they are _________________ ...
... lines, linking all parts of the body to the CNS.__________________________________ nervous system. 34. The ________________________________________ nervous system does not come in contact with the environment. 35. The autonomic nervous system is divided into TWO divisions, they are _________________ ...
AP – All or nothing
... – Time is needed to restore the proteins of voltage sensitive ion channels to their original resting conditions. – Na+ channels cannot be opened, as it can’t be depolarised again. WHY? – AP travel in one direction only. – Produces discrete impulses. – Limits the frequency of impulses. ...
... – Time is needed to restore the proteins of voltage sensitive ion channels to their original resting conditions. – Na+ channels cannot be opened, as it can’t be depolarised again. WHY? – AP travel in one direction only. – Produces discrete impulses. – Limits the frequency of impulses. ...
Nervous System = communication conduit b/w brain
... There are more Na+ ions outside of neuron than inside, more K+ ions inside than out. Negatively charged proteins in neuron act as a Na+/K+ pump – working to counteract diffusion. Pumps Na+ out & K+ in. For every 2 K+ pumped into neuron, three Na+ are pumped out. This creates unequal distribution ...
... There are more Na+ ions outside of neuron than inside, more K+ ions inside than out. Negatively charged proteins in neuron act as a Na+/K+ pump – working to counteract diffusion. Pumps Na+ out & K+ in. For every 2 K+ pumped into neuron, three Na+ are pumped out. This creates unequal distribution ...
BIOLOGY 3201
... 1. What are the two major divisions of the human nervous system? Abbreviations are fine. 2. __?__ are three protective membranes surrounding the brain . 3. grey matter: brownish-grey nerve tissue consisting of mainly __?__ within the brain and spinal cord 4. Which part of the autonomic nervous syste ...
... 1. What are the two major divisions of the human nervous system? Abbreviations are fine. 2. __?__ are three protective membranes surrounding the brain . 3. grey matter: brownish-grey nerve tissue consisting of mainly __?__ within the brain and spinal cord 4. Which part of the autonomic nervous syste ...
Electrical Communication #2
... The action potential races down the axon and depolarizes the terminal. This causes voltage-gated Ca++ channels at the terminal to open. Since the calcium concentration is 5 mM outside the cell and 0.1 µM inside, calcium rushes in. (FYI: lots of calcium inside the cell is a bad thing. That’s why th ...
... The action potential races down the axon and depolarizes the terminal. This causes voltage-gated Ca++ channels at the terminal to open. Since the calcium concentration is 5 mM outside the cell and 0.1 µM inside, calcium rushes in. (FYI: lots of calcium inside the cell is a bad thing. That’s why th ...
The Nervous System - leavingcertbiology.net
... – Although there is no clinically-proven way to prevent Parkinson’s disease, avoiding pesticide exposure and environmental pollutants and treating allergies that affect the sinuses (e.g. hayfever) may be preventative measures that may reduce chances of developing this disease ...
... – Although there is no clinically-proven way to prevent Parkinson’s disease, avoiding pesticide exposure and environmental pollutants and treating allergies that affect the sinuses (e.g. hayfever) may be preventative measures that may reduce chances of developing this disease ...
Electrophysiology
Electrophysiology (from Greek ἥλεκτρον, ēlektron, ""amber"" [see the etymology of ""electron""]; φύσις, physis, ""nature, origin""; and -λογία, -logia) is the study of the electrical properties of biological cells and tissues. It involves measurements of voltage change or electric current on a wide variety of scales from single ion channel proteins to whole organs like the heart. In neuroscience, it includes measurements of the electrical activity of neurons, and particularly action potential activity. Recordings of large-scale electric signals from the nervous system such as electroencephalography, may also be referred to as electrophysiological recordings.