CHAPTER 10: NERVOUS SYSTEM I OBJECTIVES 1. Name the two
... synaptic transmission of a nerve impulse from one neuron to another. ...
... synaptic transmission of a nerve impulse from one neuron to another. ...
11/19/08-B
... System • Several features of the nervous system predispose it to chemically-induced injury – High metabolic rate • Neurons dependent on aerobic glycolysis • Brain is 2% of body weight, but 15% of cardiac output ...
... System • Several features of the nervous system predispose it to chemically-induced injury – High metabolic rate • Neurons dependent on aerobic glycolysis • Brain is 2% of body weight, but 15% of cardiac output ...
The Nervous System The Brain The Spinal Cord
... The major control center of the body is the _ _ _ _ _-.,-. The brain has _-'--_ _ _ _ major parts. The largest part, the _ _ _- - - , controls _ _ _ _ _ _ and _ _ _ _ _ _ _ _ _ _ _ _ , and some controlled by the cerebrum. The ...
... The major control center of the body is the _ _ _ _ _-.,-. The brain has _-'--_ _ _ _ major parts. The largest part, the _ _ _- - - , controls _ _ _ _ _ _ and _ _ _ _ _ _ _ _ _ _ _ _ , and some controlled by the cerebrum. The ...
Biology 30 NERVOUS SYSTEM - Salisbury Composite High School
... membrane- membrane found at the dendrite of the neuron receiving information cleft – space between the pre and post synaptic membranes. ...
... membrane- membrane found at the dendrite of the neuron receiving information cleft – space between the pre and post synaptic membranes. ...
Nervous System Dr. Ali Ebneshahidi © 2016 Ebneshahidi
... All neurons have a cell body called soma. Although there is DNA in the neuron, somehow DNA replication and mitosis do not occur, resulting in the neurons lack of ability to reproduce or regenerate. Extensions of the soma form nerve such as dendrites which conduct nerve impulses toward the soma, an ...
... All neurons have a cell body called soma. Although there is DNA in the neuron, somehow DNA replication and mitosis do not occur, resulting in the neurons lack of ability to reproduce or regenerate. Extensions of the soma form nerve such as dendrites which conduct nerve impulses toward the soma, an ...
Chapter 11 Outline - CM
... Axolemma – plasma membrane that surrounds axon and its cytoplasm or axoplasm Substances may travel through axoplasm using one of two types of transport, which are together termed axonal transport or flow o Slow axonal transport – transports substances like cytoskeleton proteins from cell body throug ...
... Axolemma – plasma membrane that surrounds axon and its cytoplasm or axoplasm Substances may travel through axoplasm using one of two types of transport, which are together termed axonal transport or flow o Slow axonal transport – transports substances like cytoskeleton proteins from cell body throug ...
Nervous Systems
... • Action potentials do not travel between different neurons • Yet, it is still necessary to send the “signal” from one neuron to the next • To do this, there has to be a way to send a signal across the space that exists between one neuron and another (synaptic cleft or gap ...
... • Action potentials do not travel between different neurons • Yet, it is still necessary to send the “signal” from one neuron to the next • To do this, there has to be a way to send a signal across the space that exists between one neuron and another (synaptic cleft or gap ...
Unit 3A Nervous System - Teacher Version
... information across the synapse between one neuron and then next are released from terminal buttons on the sending neuron Can be: – Excitatiatory Neurotransmitters – make the neuron receiving neuron more likely to generate an action potential ...
... information across the synapse between one neuron and then next are released from terminal buttons on the sending neuron Can be: – Excitatiatory Neurotransmitters – make the neuron receiving neuron more likely to generate an action potential ...
Major Divisions in the Central Nervous System
... connected with the brain. They are structurally different form the spinal nerves, of which there are 31 pairs. Some of the cranial nerves are entirely sensory (afferent), some of which there are 31 pairs. Some of the cranial nerves are entirely sensory (afferent), some are wholly motor (efferent); t ...
... connected with the brain. They are structurally different form the spinal nerves, of which there are 31 pairs. Some of the cranial nerves are entirely sensory (afferent), some of which there are 31 pairs. Some of the cranial nerves are entirely sensory (afferent), some are wholly motor (efferent); t ...
Drugs and the Synapse
... 5. The neurotransmitters separate from the receptors. 6. The neurotransmitters are taken back into the presynaptic neuron, diffuse away, or are inactivated by chemicals. 7. The postsynaptic cell may send negative feedback to slow the release of further neurotransmitters. ...
... 5. The neurotransmitters separate from the receptors. 6. The neurotransmitters are taken back into the presynaptic neuron, diffuse away, or are inactivated by chemicals. 7. The postsynaptic cell may send negative feedback to slow the release of further neurotransmitters. ...
The Nervous System
... reflex arc is a signal conduction route to and from the CNS. The most common form of reflex arc is the three-neuron arc. It consists of an afferent neuron, and an efferent neuron. Afferent or sensory, neuron conducts signals to the CNS from sensory receptors in the PNS. Efferent neurons, or motor ne ...
... reflex arc is a signal conduction route to and from the CNS. The most common form of reflex arc is the three-neuron arc. It consists of an afferent neuron, and an efferent neuron. Afferent or sensory, neuron conducts signals to the CNS from sensory receptors in the PNS. Efferent neurons, or motor ne ...
Biology 3201
... Sodium ions (Na+) rush into the axon. This neutralizes the negative ions inside. The inside of the axon becomes temporarily (+) while the outside becomes temporarily (-). The reversal of charge is known as “depolarization” Nearby Sodium (Na+) channels open to continue the ...
... Sodium ions (Na+) rush into the axon. This neutralizes the negative ions inside. The inside of the axon becomes temporarily (+) while the outside becomes temporarily (-). The reversal of charge is known as “depolarization” Nearby Sodium (Na+) channels open to continue the ...
Circulatory System Directs blood from the heart to the rest of the
... Typical Nerve Cell (Neuron) ...
... Typical Nerve Cell (Neuron) ...
Outline10 Action Potl
... Nervous System Organization 1. Central Nervous System (CNS) - Brain and Spinal Cord. 2. Peripheral Nervous System (PNS) - nerves, ganglia and sensory receptors a. Afferent Division - input sensory information to the CNS b. Efferent Division - output motor signals from CNS to effector organs Function ...
... Nervous System Organization 1. Central Nervous System (CNS) - Brain and Spinal Cord. 2. Peripheral Nervous System (PNS) - nerves, ganglia and sensory receptors a. Afferent Division - input sensory information to the CNS b. Efferent Division - output motor signals from CNS to effector organs Function ...
12-2cut
... • Addiction: body adjusts to drug. Example, cocaine • Decrease number of neurotransmitter receptors • When drug removed, synapse _________ sensitive ...
... • Addiction: body adjusts to drug. Example, cocaine • Decrease number of neurotransmitter receptors • When drug removed, synapse _________ sensitive ...
Slide 1
... FIGURE 7.16 The NGF signal can be transduced at the tips of growing neuronal processes. Sympathetic neurons were placed in a special tissue culture system that permitted the cell bodies and neurites to be bathed in different media. (Left) Most neurons died when grown in the absence of NGF for 30 ho ...
... FIGURE 7.16 The NGF signal can be transduced at the tips of growing neuronal processes. Sympathetic neurons were placed in a special tissue culture system that permitted the cell bodies and neurites to be bathed in different media. (Left) Most neurons died when grown in the absence of NGF for 30 ho ...
48 BIOLOGY 1. Overview of Neurons 11/3/2014
... Neurotransmitters are removed by simple diffusion, inactivation by enzymes, or recapture into the presynaptic neuron ...
... Neurotransmitters are removed by simple diffusion, inactivation by enzymes, or recapture into the presynaptic neuron ...
neurons
... Neurotransmitters in the synapse are reabsorbed into the sending neurons through the process of ...
... Neurotransmitters in the synapse are reabsorbed into the sending neurons through the process of ...
AP Ch. 9 Nervous System Part 1 Worksheets
... 1. The skeletal muscles are controlled by the _______________________________nervous system. 2. The smooth muscles and glands are controlled by the __________________________ nervous system. 3. Neurons are composed of a network of fine threads called _________________________________ 4. The nervous ...
... 1. The skeletal muscles are controlled by the _______________________________nervous system. 2. The smooth muscles and glands are controlled by the __________________________ nervous system. 3. Neurons are composed of a network of fine threads called _________________________________ 4. The nervous ...
Nervous System 1
... • Only one end of a neuron can make this chemical. So synapses make sure an impulse can only travel in one direction. • Synapses have two other functions: A Resistor- it may take a number of impulses before enough chemical is made to start the impulse in the next neuron. A Junction Box- One neur ...
... • Only one end of a neuron can make this chemical. So synapses make sure an impulse can only travel in one direction. • Synapses have two other functions: A Resistor- it may take a number of impulses before enough chemical is made to start the impulse in the next neuron. A Junction Box- One neur ...
Chemical synapse
Chemical synapses are specialized junctions through which neurons signal to each other and to non-neuronal cells such as those in muscles or glands. Chemical synapses allow neurons to form circuits within the central nervous system. They are crucial to the biological computations that underlie perception and thought. They allow the nervous system to connect to and control other systems of the body.At a chemical synapse, one neuron releases neurotransmitter molecules into a small space (the synaptic cleft) that is adjacent to another neuron. The neurotransmitters are kept within small sacs called vesicles, and are released into the synaptic cleft by exocytosis. These molecules then bind to receptors on the postsynaptic cell's side of the synaptic cleft. Finally, the neurotransmitters must be cleared from the synapse through one of several potential mechanisms including enzymatic degradation or re-uptake by specific transporters either on the presynaptic cell or possibly by neuroglia to terminate the action of the transmitter.The adult human brain is estimated to contain from 1014 to 5 × 1014 (100–500 trillion) synapses. Every cubic millimeter of cerebral cortex contains roughly a billion (short scale, i.e. 109) of them.The word ""synapse"" comes from ""synaptein"", which Sir Charles Scott Sherrington and colleagues coined from the Greek ""syn-"" (""together"") and ""haptein"" (""to clasp""). Chemical synapses are not the only type of biological synapse: electrical and immunological synapses also exist. Without a qualifier, however, ""synapse"" commonly means chemical synapse.