Unit 3 PowerPoint Biological basis of behavior-
... Schwann Cells – same function as above except in PNS (Bonus – can help axons regenerate!) Astrocytes – star-shaped, form the matrix in which neural cells are embedded and absorb dead ones. ...
... Schwann Cells – same function as above except in PNS (Bonus – can help axons regenerate!) Astrocytes – star-shaped, form the matrix in which neural cells are embedded and absorb dead ones. ...
Slide 1
... stem cells begin to develop or ‘differentiate’ into specialized cells that carry out a specific function, such as in the skin, muscle or brain. Additionally, stem cells can ‘self-renew,’ that is they can divide and give rise to more stem cells. ...
... stem cells begin to develop or ‘differentiate’ into specialized cells that carry out a specific function, such as in the skin, muscle or brain. Additionally, stem cells can ‘self-renew,’ that is they can divide and give rise to more stem cells. ...
Biology 4 Study Guide
... __________ ___________ from _____________ passing from one neuron to the next. The transmission of an electrical impulse between neurons is fairly simple. When the electrical __________ reaches the end of the axon, ___________________ are _____________ from the _______________ terminals. The NTMs th ...
... __________ ___________ from _____________ passing from one neuron to the next. The transmission of an electrical impulse between neurons is fairly simple. When the electrical __________ reaches the end of the axon, ___________________ are _____________ from the _______________ terminals. The NTMs th ...
nervesendocrine ppttwo
... involuntary response that is processed in the spinal cord not the brain. Reflexes protect the body before the brain knows what is going on. ...
... involuntary response that is processed in the spinal cord not the brain. Reflexes protect the body before the brain knows what is going on. ...
Leaving Certificate Biology Topic iQuiz
... Which of the following structures of a reflex arc transmits impulses toward the central nervous system? Receptor ...
... Which of the following structures of a reflex arc transmits impulses toward the central nervous system? Receptor ...
Slide 1
... Some local interneurons do not generate action potentials because their axons are short. Some neurons do not have a steady resting potential and are spontaneously active. Neurons differ in the types and combinations of ion channels in their cell membranes. Neurons differ in their neurotransmitters r ...
... Some local interneurons do not generate action potentials because their axons are short. Some neurons do not have a steady resting potential and are spontaneously active. Neurons differ in the types and combinations of ion channels in their cell membranes. Neurons differ in their neurotransmitters r ...
General principle of nervous system
... • Central nervous system neuron – Basic functional unit – 100 billion units – Signals received by synapses • Located in neural dentrites and cell bodies • Few hundreds to 200,000 synaptic connection ...
... • Central nervous system neuron – Basic functional unit – 100 billion units – Signals received by synapses • Located in neural dentrites and cell bodies • Few hundreds to 200,000 synaptic connection ...
Neurons
... single axons, but branched a number of target cells axon hillock = arising from the perikaryon ...
... single axons, but branched a number of target cells axon hillock = arising from the perikaryon ...
Nervous System Notes Outline
... Schwann cell – cells that wrap around __________ and coat it with _________ Nodes of Ranvier – __________ between myelin where _____________ occur Dendrites – branches from the cell body that ___________ info from other cells Synaptic knob – end of axon that releases __________________ Impulse ...
... Schwann cell – cells that wrap around __________ and coat it with _________ Nodes of Ranvier – __________ between myelin where _____________ occur Dendrites – branches from the cell body that ___________ info from other cells Synaptic knob – end of axon that releases __________________ Impulse ...
Unit 3 "Cliff Notes" Review
... •Phrenology -Franz Gall was correct in his assumptions that different parts of the brain do control different aspects of behavior… but that’s about it •Biological psychology -study the links between biological activity and psychological events 9.2 – Neurons ...
... •Phrenology -Franz Gall was correct in his assumptions that different parts of the brain do control different aspects of behavior… but that’s about it •Biological psychology -study the links between biological activity and psychological events 9.2 – Neurons ...
MODEL OF WHOLE NEURON
... compartment; the input defined by the previous compartment’s membrane potential and the next compartment’s membrane potential. • Additional neurons can be added using the same basic neuron, interacting with each other using the current from the adjacent neuron (presynaptic terminal) to stimulate the ...
... compartment; the input defined by the previous compartment’s membrane potential and the next compartment’s membrane potential. • Additional neurons can be added using the same basic neuron, interacting with each other using the current from the adjacent neuron (presynaptic terminal) to stimulate the ...
Chapter 11: Fundamentals of the Nervous System and Nervous Tissue
... 1. Some neurotransmitters have both excitatory and inhibitory effects 2. Determined by the receptor type of the postsynaptic neuron 3. Example: acetylcholine a. Excitatory at neuromuscular junctions with skeletal muscle ...
... 1. Some neurotransmitters have both excitatory and inhibitory effects 2. Determined by the receptor type of the postsynaptic neuron 3. Example: acetylcholine a. Excitatory at neuromuscular junctions with skeletal muscle ...
Objectives included for the test File
... by relay neurons, and from the CNS to effectors by motor neurons. Define resting potential and action potential (depolarization and repolarization). Explain how a nerve impulse passes along a non-myelinated neuron. Include the movement of Na+ and K+ ions to create a resting potential and an action p ...
... by relay neurons, and from the CNS to effectors by motor neurons. Define resting potential and action potential (depolarization and repolarization). Explain how a nerve impulse passes along a non-myelinated neuron. Include the movement of Na+ and K+ ions to create a resting potential and an action p ...
Slide - Reza Shadmehr
... uses the path that is marked by the glia cells. In this way, the glia cells act as a road map for the injured neuron to find its previous destination. ...
... uses the path that is marked by the glia cells. In this way, the glia cells act as a road map for the injured neuron to find its previous destination. ...
Nerves, Hormones and Homeostasis
... (message) to the relay neurons inside the CNS (brain and spinal cord) The relay neurons move the message inside the brain and bring it to the correct spot The CNS now sends out an impulse (message) to the motor neurons ...
... (message) to the relay neurons inside the CNS (brain and spinal cord) The relay neurons move the message inside the brain and bring it to the correct spot The CNS now sends out an impulse (message) to the motor neurons ...
Nervous System - Lemon Bay High School
... The Nervous System works with the Endocrine System to provide electrical and chemical control of ALL body processes. ...
... The Nervous System works with the Endocrine System to provide electrical and chemical control of ALL body processes. ...
The Nervous System
... called depolarization. Locally the inside is now more positive and the outside less positive. This is called a graded potential. ...
... called depolarization. Locally the inside is now more positive and the outside less positive. This is called a graded potential. ...
The Nervous System - Riverside Preparatory High School
... 1. One neuron transmits a nerve impulse at 40 m/s. Another conducts at the rate of 1 m/s. Which neuron has a myelinated axon? 2. List the following in order: A. K+ channels open and K+ floods out of cell B. Membrane is polarized (resting potential) C. Neurotransmitters are released from vesicles int ...
... 1. One neuron transmits a nerve impulse at 40 m/s. Another conducts at the rate of 1 m/s. Which neuron has a myelinated axon? 2. List the following in order: A. K+ channels open and K+ floods out of cell B. Membrane is polarized (resting potential) C. Neurotransmitters are released from vesicles int ...
Central Nervous System
... Myelinated neurons faster than unmyelinated Myelinated fibers conduct impulses from one Node of Ranvier to the next, a phenomenon called saltatory conduction. Speed of impulse conduction is proportional to the diameter of the axon a.Thick, myelinated motor axons conduct at 120 m/s b.Thin, unmyeli ...
... Myelinated neurons faster than unmyelinated Myelinated fibers conduct impulses from one Node of Ranvier to the next, a phenomenon called saltatory conduction. Speed of impulse conduction is proportional to the diameter of the axon a.Thick, myelinated motor axons conduct at 120 m/s b.Thin, unmyeli ...
Neurons & the Nervous System
... +30-40 millivolts • Repolarization: internal charge becomes more negative • Refractory period: phase after firing an impulse, neuron will not fire • All-or-none principle: neuron will fire or not fire, no in-between ...
... +30-40 millivolts • Repolarization: internal charge becomes more negative • Refractory period: phase after firing an impulse, neuron will not fire • All-or-none principle: neuron will fire or not fire, no in-between ...
Chapter 48: Nervous System
... o Hyperpolarization: increase in the electrical gradient (i.e., membrane potential becomes more negative) K+ channels release potassium from inside the cell, making it more negative o Depolarization: a decrease in the electrical gradient (i.e., membrane potential increases toward 0 mV) Na+ chann ...
... o Hyperpolarization: increase in the electrical gradient (i.e., membrane potential becomes more negative) K+ channels release potassium from inside the cell, making it more negative o Depolarization: a decrease in the electrical gradient (i.e., membrane potential increases toward 0 mV) Na+ chann ...
Nervous System ch 11
... •Microglia – small, ovoid cells with spiny processes –Phagocytes; monitor the health of neurons •Ependymal cells –squamous or columnar –They line the central cavities of the brain and spinal column Oligodendrocytes, Schwann Cells, and Satellite Cells •Oligodendrocytes – branched cells that wrap CNS ...
... •Microglia – small, ovoid cells with spiny processes –Phagocytes; monitor the health of neurons •Ependymal cells –squamous or columnar –They line the central cavities of the brain and spinal column Oligodendrocytes, Schwann Cells, and Satellite Cells •Oligodendrocytes – branched cells that wrap CNS ...