Peripheral Nervous System
... • Depolarization is caused by the influx of Na+ which causes the membrane to become more positive. This starts an action potential, or nerve impulse. They follow the all or none law!!! • The membrane will repolarize when K+ leaves the cell setting the membrane back to resting potential or ...
... • Depolarization is caused by the influx of Na+ which causes the membrane to become more positive. This starts an action potential, or nerve impulse. They follow the all or none law!!! • The membrane will repolarize when K+ leaves the cell setting the membrane back to resting potential or ...
In your journal, take notes by writing the name of
... that have backbones and spinal columns) has two parts, the central nervous system (CNS) and the peripheral nervous system (PNS). • The CNS includes the brain and spinal cord. The brain is protected by the skull, and the spinal cord by the skeletal vertebrae. • The PNS includes all other nervous syst ...
... that have backbones and spinal columns) has two parts, the central nervous system (CNS) and the peripheral nervous system (PNS). • The CNS includes the brain and spinal cord. The brain is protected by the skull, and the spinal cord by the skeletal vertebrae. • The PNS includes all other nervous syst ...
Slide 39
... nervous system and the peripheral nervous system. The function of the central nervous system is to process incoming information, and send commands to the rest of the body. Unlike the peripheral nervous system, the central nervous system is encased in bone – the skull and vertebrae. • The peripheral ...
... nervous system and the peripheral nervous system. The function of the central nervous system is to process incoming information, and send commands to the rest of the body. Unlike the peripheral nervous system, the central nervous system is encased in bone – the skull and vertebrae. • The peripheral ...
Biological Bases of Behavior, Barron`s Neuroanatomy, pages 78
... 10. Why are neurotransmitters important ? - enable neurons to communicate 11. What does it take for a neuron to fire? - terminal buttons on one neuron are stimulated and release transmitters into the synapse - neurotransmitters fit reception sites on the dendrites of the next neuron - next neuron ce ...
... 10. Why are neurotransmitters important ? - enable neurons to communicate 11. What does it take for a neuron to fire? - terminal buttons on one neuron are stimulated and release transmitters into the synapse - neurotransmitters fit reception sites on the dendrites of the next neuron - next neuron ce ...
Peripheral nervous system
... • Saltatory connection - action potentials jumping from node to node in myelinated axons ...
... • Saltatory connection - action potentials jumping from node to node in myelinated axons ...
The nervous system
... • Reflexes are used to protect the body without having to think about what is happening. ...
... • Reflexes are used to protect the body without having to think about what is happening. ...
Peripheral Nervous System
... • The autonomic system is largely involuntary, its control originates in the brainstem and hypothalamus. • Autonomic nervous system innervates the heart, smooth muscles, organs and glands. • The autonomic system makes one ganglion after leaving the CNS. The post ganglionic cell then makes contact wi ...
... • The autonomic system is largely involuntary, its control originates in the brainstem and hypothalamus. • Autonomic nervous system innervates the heart, smooth muscles, organs and glands. • The autonomic system makes one ganglion after leaving the CNS. The post ganglionic cell then makes contact wi ...
Nervous System
... ◦ The axon is the elongated fiber that extends from the cell body to the terminal endings and transmits the neural signal. ◦ The terminal buttons are located at the end of the neuron and are responsible for sending the signal on to other neurons. ◦ Synapse is a located at the end of the terminal but ...
... ◦ The axon is the elongated fiber that extends from the cell body to the terminal endings and transmits the neural signal. ◦ The terminal buttons are located at the end of the neuron and are responsible for sending the signal on to other neurons. ◦ Synapse is a located at the end of the terminal but ...
The Brain and the Nervous System
... Each hemisphere receives and sends information to the opposite side of the body Each hemisphere also specializes in certain functions LEFT and Right tightly coordinated -Both necessary for efficient and normal brain function Each hemisphere has some special abilities: The Left Hemisphere (or Left Br ...
... Each hemisphere receives and sends information to the opposite side of the body Each hemisphere also specializes in certain functions LEFT and Right tightly coordinated -Both necessary for efficient and normal brain function Each hemisphere has some special abilities: The Left Hemisphere (or Left Br ...
AUTONOMIC NERVOUS SYSTEM
... AUTONOMIC NERVOUS SYSTEM The ANS is part of the efferent portion of the peripheral nervous system ...
... AUTONOMIC NERVOUS SYSTEM The ANS is part of the efferent portion of the peripheral nervous system ...
the nervous system
... polarized cell: resting membrane potential (RMP): stimulus: electrically sensitive gated Na channels: Na inflow: depolarisation : threshold potential: positive feedback: ...
... polarized cell: resting membrane potential (RMP): stimulus: electrically sensitive gated Na channels: Na inflow: depolarisation : threshold potential: positive feedback: ...
Nervous Systems
... • All neurons use same basic signal • Wiring pattern in brain distinguishes stimuli 2) Signal intensity of stimulus • All signals similar in size (all-or-none response) ...
... • All neurons use same basic signal • Wiring pattern in brain distinguishes stimuli 2) Signal intensity of stimulus • All signals similar in size (all-or-none response) ...
Human Nervous System Central nervous system
... Nervous system has three specific functions Receiving sensory input ...
... Nervous system has three specific functions Receiving sensory input ...
Nervous System
... • Extreme longevity…over 100 yrs. possible • Cell structures: - cell body, axon, dendrites, myelin sheath, nodes of Ranvier, nucleus, axon terminals, end bulbs, synapse (If myelinated, will have Schwann cells or Oligodendrocytes attached to axon) ...
... • Extreme longevity…over 100 yrs. possible • Cell structures: - cell body, axon, dendrites, myelin sheath, nodes of Ranvier, nucleus, axon terminals, end bulbs, synapse (If myelinated, will have Schwann cells or Oligodendrocytes attached to axon) ...
lesson 6
... • Nerve signals are transmitted by action potentials that are abrupt, pulse-like changes in the membrane potential that last a few ten thousandths of a second. • Action potentials can be divided into three phases: the resting or polarized state, depolarization, and repolarization • The amplitude of ...
... • Nerve signals are transmitted by action potentials that are abrupt, pulse-like changes in the membrane potential that last a few ten thousandths of a second. • Action potentials can be divided into three phases: the resting or polarized state, depolarization, and repolarization • The amplitude of ...
Somatic nervous system
... The somatic nervous system processes sensory information and controls all voluntary muscular systems within the body, with the exception of reflex arcs. The basic route of nerve signals within the efferent somatic nervous system involves a sequence that begins in the upper cell bodies of motor neuro ...
... The somatic nervous system processes sensory information and controls all voluntary muscular systems within the body, with the exception of reflex arcs. The basic route of nerve signals within the efferent somatic nervous system involves a sequence that begins in the upper cell bodies of motor neuro ...
document
... When we are thinking about our brain, we are thinking with our brain. Brain + Body = Mind ...
... When we are thinking about our brain, we are thinking with our brain. Brain + Body = Mind ...
Reading 2 - Background to Psychobiology
... - Sulcus (plural) – The space between the folds of the cerebral cortex - Fissure – A space that is not created by a fold of the brain - The white matter mostly consist of axons o You can think of the brain as many servers that are interconnected (subcortical and cerebral cortex/different area ...
... - Sulcus (plural) – The space between the folds of the cerebral cortex - Fissure – A space that is not created by a fold of the brain - The white matter mostly consist of axons o You can think of the brain as many servers that are interconnected (subcortical and cerebral cortex/different area ...
CHAPTER 11 Nervous Tissue - Austin Community College
... cells in PNS Composed of a lipoprotein with phospholipids, glycolipids and cholesterol. Myelination is the process of myelin formation Myelin allows nerve conduction to be 150 x faster than nonmyelinated nerves. This occcurs by “Saltatory conduction” and the impulse jumps from Node to ...
... cells in PNS Composed of a lipoprotein with phospholipids, glycolipids and cholesterol. Myelination is the process of myelin formation Myelin allows nerve conduction to be 150 x faster than nonmyelinated nerves. This occcurs by “Saltatory conduction” and the impulse jumps from Node to ...
Fill in the blanks on LB page 67-68.
... c. Membrane transport proteins actively pump neurotransmitter molecules back into the presynaptic cells. V. The Nervous System: An Overview A. The nervous system is organized into two major divisions: 1. The central nervous system (CNS) is composed of the brain and spinal cord. 2. The peripheral ner ...
... c. Membrane transport proteins actively pump neurotransmitter molecules back into the presynaptic cells. V. The Nervous System: An Overview A. The nervous system is organized into two major divisions: 1. The central nervous system (CNS) is composed of the brain and spinal cord. 2. The peripheral ner ...
Lecture 13: The Nervous System
... Glial cells support neurons and outnumber neurons 9 to 1. There are 4 types of glial cells found in the CNS and 2 found in the PNS. 1. Astrocytes (CNS) A. Most abundant glial cell B. Play a role in forming the blood brain barrier and can form scar tissue in the brain following an injury C. Found ...
... Glial cells support neurons and outnumber neurons 9 to 1. There are 4 types of glial cells found in the CNS and 2 found in the PNS. 1. Astrocytes (CNS) A. Most abundant glial cell B. Play a role in forming the blood brain barrier and can form scar tissue in the brain following an injury C. Found ...
BIOLOGY AND BEHAVIOR
... • Nerve cell which transmits electrical and chemical information (via neurotransmitters) throughout the body. Each nerve cell is separate from another and is called a Neuron – a string of these is a nerve cell. • Learning takes place by new dendrites actually sprouting to make connection with other ...
... • Nerve cell which transmits electrical and chemical information (via neurotransmitters) throughout the body. Each nerve cell is separate from another and is called a Neuron – a string of these is a nerve cell. • Learning takes place by new dendrites actually sprouting to make connection with other ...
SRCD Abstract 01 - University of Illinois Archives
... designed to capture information from experience and to incorporate the effects of experience into the architecture of the nervous system. This occurs in at least two ways. Experience-expectant brain development takes advantage of information reliably present in the environments of all species member ...
... designed to capture information from experience and to incorporate the effects of experience into the architecture of the nervous system. This occurs in at least two ways. Experience-expectant brain development takes advantage of information reliably present in the environments of all species member ...
Crossing the Synaptic Gap
... neurotransmitters, go from one neuron to the next. Point out that most neurons can receive messages from many other neurons. Some of these messages “stimulate” or cause firing, other messages “inhibit” or prevent firing. Neurons “decide” to fire or not depending on the kinds of messages they receive ...
... neurotransmitters, go from one neuron to the next. Point out that most neurons can receive messages from many other neurons. Some of these messages “stimulate” or cause firing, other messages “inhibit” or prevent firing. Neurons “decide” to fire or not depending on the kinds of messages they receive ...
Neuroanatomy
Neuroanatomy is the study of the anatomy and stereotyped organization of nervous systems. In contrast to animals with radial symmetry, whose nervous system consists of a distributed network of cells, animals with bilateral symmetry have segregated, defined nervous systems, and thus we can make much more precise statements about their neuroanatomy. In vertebrates, the nervous system is segregated into the internal structure of the brain and spinal cord (together called the central nervous system, or CNS) and the routes of the nerves that connect to the rest of the body (known as the peripheral nervous system, or PNS). The delineation of distinct structures and regions of the nervous system has been critical in investigating how it works. For example, much of what neuroscientists have learned comes from observing how damage or ""lesions"" to specific brain areas affects behavior or other neural functions.For information about the composition of animal nervous systems, see nervous system. For information about the typical structure of the human nervous system, see human brain or peripheral nervous system. This article discusses information pertinent to the study of neuroanatomy.