File
... Transmit impulses from CNS to the muscles in order to produce movement (voluntary or involuntary) ...
... Transmit impulses from CNS to the muscles in order to produce movement (voluntary or involuntary) ...
Communication within the Nervous System
... The Neural Membrane • Moves 3 Na+ outside for every 2 K+ inside ...
... The Neural Membrane • Moves 3 Na+ outside for every 2 K+ inside ...
4-S2 - L1 (1)
... • excitatory amino acids – mainly glutamate – major excitatory neurotransmitter • over 70% of all CNS synapses are glutamatergic • present throughout the CNS ...
... • excitatory amino acids – mainly glutamate – major excitatory neurotransmitter • over 70% of all CNS synapses are glutamatergic • present throughout the CNS ...
Title Nerve cell or neuron Learning outcome At the end of the lesson
... • At the end of the lesson Ss will be able to • Say about nerve cell. • Describe the different parts a nerve cell. • Compare between a cell body and a cell • Draw a picture of a neuron. ...
... • At the end of the lesson Ss will be able to • Say about nerve cell. • Describe the different parts a nerve cell. • Compare between a cell body and a cell • Draw a picture of a neuron. ...
Course Introduction: The Brain, chemistry, neural signaling
... There is an electrical charge across the membrane. This is the membrane potential. The resting potential (when the cell is not firing) is a 70mV difference between the inside and the outside. ...
... There is an electrical charge across the membrane. This is the membrane potential. The resting potential (when the cell is not firing) is a 70mV difference between the inside and the outside. ...
power point for chap 11
... • Correspond to gap junctions found in other cell types • Contain intercellular protein channels ...
... • Correspond to gap junctions found in other cell types • Contain intercellular protein channels ...
nervous system
... Body: Contains nucleus, control center of the cell. Regulates production of protein within the cell. Neurons ...
... Body: Contains nucleus, control center of the cell. Regulates production of protein within the cell. Neurons ...
Chapter 3 - Morgan Community College
... faster, two-way transmission & capable of synchronizing groups of neurons ...
... faster, two-way transmission & capable of synchronizing groups of neurons ...
Plants and Pollinators
... • Voltage change causes voltage-gated channels in the membrane to open • As a result of ion flow through these channels, the inside of neuron briefly ...
... • Voltage change causes voltage-gated channels in the membrane to open • As a result of ion flow through these channels, the inside of neuron briefly ...
Electrochemical Impulse
... potential of a neuron. Specialized receptors exist in your skin and organs that can change membrane potential due to environmental changes. These receptors will open channels allowing cations like sodium into the cell body. ...
... potential of a neuron. Specialized receptors exist in your skin and organs that can change membrane potential due to environmental changes. These receptors will open channels allowing cations like sodium into the cell body. ...
nervous07
... Nervous System Organisation: -Central nervous system (CNS) -Brain & spinal cord -Peripheral nervous system (PNS) -Outside CNS -Cranial & spinal nerves and associated ganglia - PNS > sensory > motor - somatic: impulses transmitted directly to skeletal muscle via one neuron - autonomic: impulse o ...
... Nervous System Organisation: -Central nervous system (CNS) -Brain & spinal cord -Peripheral nervous system (PNS) -Outside CNS -Cranial & spinal nerves and associated ganglia - PNS > sensory > motor - somatic: impulses transmitted directly to skeletal muscle via one neuron - autonomic: impulse o ...
action potential
... How Neurons Communicate •Neurons communicate by means of an electrical signal called the action potential •Action potentials are based on the movements of ions between the outside and inside of the cell •When an action potential occurs, a molecular message is sent to neighboring neurons ...
... How Neurons Communicate •Neurons communicate by means of an electrical signal called the action potential •Action potentials are based on the movements of ions between the outside and inside of the cell •When an action potential occurs, a molecular message is sent to neighboring neurons ...
Control and Coordination -Organ systems
... the connection (gap) between the terminal knob of one axon and the dendrite of an adjacent neuron ...
... the connection (gap) between the terminal knob of one axon and the dendrite of an adjacent neuron ...
File
... types found in cells, and varying cell types have different populations of receptors. Receptors can also respond directly to light or pressure, which makes cells sensitive to events in the atmosphere. Receptors are generally transmembrane protein ...
... types found in cells, and varying cell types have different populations of receptors. Receptors can also respond directly to light or pressure, which makes cells sensitive to events in the atmosphere. Receptors are generally transmembrane protein ...
Chapter 12 – Introduction to the Nervous System
... http://www.riversideonline.com/source/images/image_popup/ww5r308_big.jpg ...
... http://www.riversideonline.com/source/images/image_popup/ww5r308_big.jpg ...
Nervous System WS (handed out after section exam)
... c. What substance makes up the myelin sheath? ...
... c. What substance makes up the myelin sheath? ...
Nervous System Notes
... permeable to Ca+ & they diffuse inward • This causes vesicles to release ntm • Ntm causes A.P. to enter postsynaptic neuron • A.P. continues to travel down postsynaptic neuron ...
... permeable to Ca+ & they diffuse inward • This causes vesicles to release ntm • Ntm causes A.P. to enter postsynaptic neuron • A.P. continues to travel down postsynaptic neuron ...
summing-up - Zanichelli online per la scuola
... generates a resting membrane potential that is maintained by the action of proteins in the membrane. ...
... generates a resting membrane potential that is maintained by the action of proteins in the membrane. ...
Lecture 7 Neurons
... balance is altered Membrane breaks down Positively charged ions rush in (depolarization) Charge = less negative Causes release of chemicals from terminal buttons ...
... balance is altered Membrane breaks down Positively charged ions rush in (depolarization) Charge = less negative Causes release of chemicals from terminal buttons ...
The Brain and Nervous System - Mr. Conzen
... People are made up of billions of cells - in Psychology we focus on the nervous system. Nervous system sends messages throughout the body that encompass thought, perception, emotion, etc. ...
... People are made up of billions of cells - in Psychology we focus on the nervous system. Nervous system sends messages throughout the body that encompass thought, perception, emotion, etc. ...
topic 6.5 Neurons
... balance is altered Membrane breaks down Positively charged ions rush in (depolarization) Charge = less negative Causes release of chemicals from terminal buttons ...
... balance is altered Membrane breaks down Positively charged ions rush in (depolarization) Charge = less negative Causes release of chemicals from terminal buttons ...
The Nervous System
... • They use receptors to detect the changes. • Sensory neurons send messages about your body or environment to the spinal cord up to the brain for interpretation. ...
... • They use receptors to detect the changes. • Sensory neurons send messages about your body or environment to the spinal cord up to the brain for interpretation. ...
CHAPTER 2 RAPID REVIEW
... dopamine have been linked to the psychological disorder known as schizophrenia. Endorphin is a special neurotransmitter called a neural regulator that controls the release of other neurotransmitters. When endorphin is released in the body, they neurons transmitting information about pain are not ab ...
... dopamine have been linked to the psychological disorder known as schizophrenia. Endorphin is a special neurotransmitter called a neural regulator that controls the release of other neurotransmitters. When endorphin is released in the body, they neurons transmitting information about pain are not ab ...
Stimulus (physiology)
In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment. The ability of an organism or organ to respond to external stimuli is called sensitivity. When a stimulus is applied to a sensory receptor, it normally elicits or influences a reflex via stimulus transduction. These sensory receptors can receive information from outside the body, as in touch receptors found in the skin or light receptors in the eye, as well as from inside the body, as in chemoreceptors and mechanorceptors. An internal stimulus is often the first component of a homeostatic control system. External stimuli are capable of producing systemic responses throughout the body, as in the fight-or-flight response. In order for a stimulus to be detected with high probability, its level must exceed the absolute threshold; if a signal does reach threshold, the information is transmitted to the central nervous system (CNS), where it is integrated and a decision on how to react is made. Although stimuli commonly cause the body to respond, it is the CNS that finally determines whether a signal causes a reaction or not.