The Nervous System
... • PNS myelin is formed from Schwann cells and CNS myelin is formed from oligodendrocytes • Oligodendrocytes can coil around 60 fibers simultaneously and the sheaths they form lack a neurilemma (outer cytoplasmic layer of cells) • The neurilemma remains mostly intact when neurons are damaged and play ...
... • PNS myelin is formed from Schwann cells and CNS myelin is formed from oligodendrocytes • Oligodendrocytes can coil around 60 fibers simultaneously and the sheaths they form lack a neurilemma (outer cytoplasmic layer of cells) • The neurilemma remains mostly intact when neurons are damaged and play ...
Name: Block: Date
... The peripheral nervous system may be divided into the SOMATIC division and the AUTONOMIC division. A MOTOR neuron has a long axon and short dendrites. In the first part of the nerve impulse, the ion SODIUM moves to the inside of the neuron. The junction between one neuron and another is called a SYN ...
... The peripheral nervous system may be divided into the SOMATIC division and the AUTONOMIC division. A MOTOR neuron has a long axon and short dendrites. In the first part of the nerve impulse, the ion SODIUM moves to the inside of the neuron. The junction between one neuron and another is called a SYN ...
Cells of the Nervous System
... [need specialized cells because of unique sensitivity of neurons to their environment] 900 Billion some mitosis Neuroglia 1. astrocytes 2. oligodendroglia 3. microglia 4. ependymal cells 5. Schwann cells 1. Astrocytes largest and most abundant type form tight webs around brains capillaries =blood/br ...
... [need specialized cells because of unique sensitivity of neurons to their environment] 900 Billion some mitosis Neuroglia 1. astrocytes 2. oligodendroglia 3. microglia 4. ependymal cells 5. Schwann cells 1. Astrocytes largest and most abundant type form tight webs around brains capillaries =blood/br ...
The Nervous System
... AFFERENT FIBERS- nerve fibers that conduct impulses toward the CNS. EFFERENT FIBERS- nerve fibers that conduct impulses away from the CNS. SOMATIC - on or relating to the wall of the body or the framework of the body and not to the viscera; i.e., relating to the skin and the skeletal muscles. VISCER ...
... AFFERENT FIBERS- nerve fibers that conduct impulses toward the CNS. EFFERENT FIBERS- nerve fibers that conduct impulses away from the CNS. SOMATIC - on or relating to the wall of the body or the framework of the body and not to the viscera; i.e., relating to the skin and the skeletal muscles. VISCER ...
REGULATION
... synaptic cleft (space between 2 neurons). B. The electrical impulse is now converted into a chemical response that stimulates the adjoining neuron to receive the transmitted impulse. C. Once the impulse has been transmitted, cholinesterase break down the acetylcholine to clear the way for new signal ...
... synaptic cleft (space between 2 neurons). B. The electrical impulse is now converted into a chemical response that stimulates the adjoining neuron to receive the transmitted impulse. C. Once the impulse has been transmitted, cholinesterase break down the acetylcholine to clear the way for new signal ...
Lorem Ipsum - University of Western Australia
... The crest of the neural tube migrates off in to the body These cells form the dorsal root ganglia and contribute to many other tissues from the facial skeleton to the adrenals ...
... The crest of the neural tube migrates off in to the body These cells form the dorsal root ganglia and contribute to many other tissues from the facial skeleton to the adrenals ...
Nervous System II – Neurons
... Nervous System II – Neurons Neurons Information is transmitted through ...
... Nervous System II – Neurons Neurons Information is transmitted through ...
Chapter 13: The Nervous System
... are present in the ___________________________________________. These large proteins are stuck inside the membrane and when K+ leaves this creates an overall charge of what? ...
... are present in the ___________________________________________. These large proteins are stuck inside the membrane and when K+ leaves this creates an overall charge of what? ...
Unit 5- Nervous
... - I can describe the generalized functions of the system as a whole - I can describe how the nervous tissue is organized - I can Identify the major types of cells in the nervous system and discuss the function of each - I can Identify types of neurons - I can briefly describe the mechanisms of trans ...
... - I can describe the generalized functions of the system as a whole - I can describe how the nervous tissue is organized - I can Identify the major types of cells in the nervous system and discuss the function of each - I can Identify types of neurons - I can briefly describe the mechanisms of trans ...
File
... Axon – conduct nerve impulses away from the cell body Axon terminals – end of axon; contain neurotransmitters & release them Synaptic cleft/synapse – gap between neurons ...
... Axon – conduct nerve impulses away from the cell body Axon terminals – end of axon; contain neurotransmitters & release them Synaptic cleft/synapse – gap between neurons ...
Nervous System Chap49
... 2. Central nervous system CNS consists of Brain and Spinal Cord. The human brain contains about 100 billion neurons, organized into circuits more complex than the most powerful supercomputers. 3. Peripheral nervous system PNS consists of cranial nerves arising from brain and spinal nerves connected ...
... 2. Central nervous system CNS consists of Brain and Spinal Cord. The human brain contains about 100 billion neurons, organized into circuits more complex than the most powerful supercomputers. 3. Peripheral nervous system PNS consists of cranial nerves arising from brain and spinal nerves connected ...
Your Name Here______________________________
... 15. Dopamine, histamine, norepinephrine and serotonin are in the class of neurotransmitters called a. neuropeptides b. amino acids c. neuromodulators d. monoamines 16. Immune protection of the CNS is in part based on the activity of a. astrocytes b. oligodendrocytes c. ependymal cells d. microglia ...
... 15. Dopamine, histamine, norepinephrine and serotonin are in the class of neurotransmitters called a. neuropeptides b. amino acids c. neuromodulators d. monoamines 16. Immune protection of the CNS is in part based on the activity of a. astrocytes b. oligodendrocytes c. ependymal cells d. microglia ...
NS Outline
... iiii. Gray matter: concentration of cell bodies & unmyelinated fibers. (in PNS=ganglia; in CNS=nuclei). {Neurolemmacytes are most active during the first year of life, and spiral around an axon to leave a covering called the neurolemma. This covering will also aid in repair. Oligodendrocytes myelina ...
... iiii. Gray matter: concentration of cell bodies & unmyelinated fibers. (in PNS=ganglia; in CNS=nuclei). {Neurolemmacytes are most active during the first year of life, and spiral around an axon to leave a covering called the neurolemma. This covering will also aid in repair. Oligodendrocytes myelina ...
Brain and Behaviour
... 3 different types of nerve cells called Neurons: Sensory neuron (send information from sensory organs and tissue to the brain and spinal cord) Interneuron (processes information in the brain and spinal cord) Motor neuron (receives instructions from the brain and spinal cord) ...
... 3 different types of nerve cells called Neurons: Sensory neuron (send information from sensory organs and tissue to the brain and spinal cord) Interneuron (processes information in the brain and spinal cord) Motor neuron (receives instructions from the brain and spinal cord) ...
A1992HX83800001
... between the action of polarizing current and different cations on impulse conduc1 tion in nerve fibers. The beauty of the analysis impressed me very much, and, although for many years after graduation I was engaged in spinal cord physiology, I always felt a motivation to switch to more simple system ...
... between the action of polarizing current and different cations on impulse conduc1 tion in nerve fibers. The beauty of the analysis impressed me very much, and, although for many years after graduation I was engaged in spinal cord physiology, I always felt a motivation to switch to more simple system ...
The Nervous System
... impulse) see diagram on next page All PNS nerves have a thin membrane called the neurillemma = promotes regeneration of damaged axons. Some nerve cells within the brain and spinal cord do NOT have myelin or neurillemma (celled grey matter), therefore ...
... impulse) see diagram on next page All PNS nerves have a thin membrane called the neurillemma = promotes regeneration of damaged axons. Some nerve cells within the brain and spinal cord do NOT have myelin or neurillemma (celled grey matter), therefore ...
Slide () - AccessAnesthesiology
... Schematic anatomy of deep dissection of gluteal region. Most of gluteus maximus and medius muscles have been removed. Segment of sacrotuberous ligament also has been removed, revealing pudendal nerve. Pudendal nerve emerges from pelvis inferior relative to piriformis muscle and enters gluteal region ...
... Schematic anatomy of deep dissection of gluteal region. Most of gluteus maximus and medius muscles have been removed. Segment of sacrotuberous ligament also has been removed, revealing pudendal nerve. Pudendal nerve emerges from pelvis inferior relative to piriformis muscle and enters gluteal region ...
A1982NV42600001
... localized populations of nerve ceilsi, apparently no one had tried it in the brain. “About this time, Anita Hendrickson3 of the University of Washington was exploring the usefuln~sof axonal transport for studying the central connections of the retina at the electron microscope level. She and I began ...
... localized populations of nerve ceilsi, apparently no one had tried it in the brain. “About this time, Anita Hendrickson3 of the University of Washington was exploring the usefuln~sof axonal transport for studying the central connections of the retina at the electron microscope level. She and I began ...
The following are Biology 201 terms that will be used in Biology 202
... 201 and since we stress homeostasis in both courses there will be a fair amount of information from biology 201 that is used in 202. The following terms you are expected to know and be able to use in biology 202. Anatomical position Directional terms Body planes and sections Body cavities Homeostasi ...
... 201 and since we stress homeostasis in both courses there will be a fair amount of information from biology 201 that is used in 202. The following terms you are expected to know and be able to use in biology 202. Anatomical position Directional terms Body planes and sections Body cavities Homeostasi ...
Part 1 - Kirkwood Community College
... – Electrically insulate fibers from one another – Increase the speed of nerve impulse transmission ...
... – Electrically insulate fibers from one another – Increase the speed of nerve impulse transmission ...
31.1 Really Neurons
... Homework Name and describe the three types of neurons Sensory neurons carry impulses from the sense organs. Motor neurons carry impulses from the brain and spinal cord to muscles and glands. Interneurons process the information from sensory neurons and send commands to other interneurons or motor ...
... Homework Name and describe the three types of neurons Sensory neurons carry impulses from the sense organs. Motor neurons carry impulses from the brain and spinal cord to muscles and glands. Interneurons process the information from sensory neurons and send commands to other interneurons or motor ...
Nerve Flash Cards
... How does the signal go through the space? By a chemical transmission. The synaptic knob has vesicles filled with a neurotransmitter that carries the signal. Each type of neuron used particular types of neurotransmitters, so there are 100’s of types. ...
... How does the signal go through the space? By a chemical transmission. The synaptic knob has vesicles filled with a neurotransmitter that carries the signal. Each type of neuron used particular types of neurotransmitters, so there are 100’s of types. ...
Chapter 11: Fundamentals of the Nervous System and Nervous Tissue
... ______6. A major subdivision of the nervous system that serves as the communication lines, linking all parts of the body to the CNS. 3. This exercise emphasizes the difference between neurons and neuroglia. Indicate which cell type is identified by the following descriptions. A. Neurons B. Neuroglia ...
... ______6. A major subdivision of the nervous system that serves as the communication lines, linking all parts of the body to the CNS. 3. This exercise emphasizes the difference between neurons and neuroglia. Indicate which cell type is identified by the following descriptions. A. Neurons B. Neuroglia ...