Chapter 7: The Nervous System
... State the function of neurons and neuroglia. Describe the general structure of a neuron, and name its important anatomical regions. Describe the composition of gray matter and white matter. List the two major functional properties of neurons. Classify neurons according to structure and function. Lis ...
... State the function of neurons and neuroglia. Describe the general structure of a neuron, and name its important anatomical regions. Describe the composition of gray matter and white matter. List the two major functional properties of neurons. Classify neurons according to structure and function. Lis ...
Autonomic Nervous System
... • Preganglionic cell bodies in nuclei of brainstem or lateral parts of spinal cord gray matter from S2-S4 – Preganglionic axons from brain pass to ganglia through cranial nerves – Preganglionic axons from sacral region pass through pelvic nerves to ganglia ...
... • Preganglionic cell bodies in nuclei of brainstem or lateral parts of spinal cord gray matter from S2-S4 – Preganglionic axons from brain pass to ganglia through cranial nerves – Preganglionic axons from sacral region pass through pelvic nerves to ganglia ...
C Fiber Stimulation
... The majority of nocieptive input to the CNS is carried my C fibers. Somatic C fibers terminate principally within lamina 2 (substania gelatinosa) Visceral noicieptive C fibers from the esophagus, larynx, and trachea travel with the vagus nerve to enter the nucleus solitarious in the brain stem Some ...
... The majority of nocieptive input to the CNS is carried my C fibers. Somatic C fibers terminate principally within lamina 2 (substania gelatinosa) Visceral noicieptive C fibers from the esophagus, larynx, and trachea travel with the vagus nerve to enter the nucleus solitarious in the brain stem Some ...
ANATOMY OF THE SPINAL CORD AND SPINAL NERVES
... SPINAL CORD ANATOMY LENGTH 45 CM, 17-18 IN ENDS AT THE LEVEL OF L1-2 ENLARGEMENTS IN THE CERVICAL AND LUMBAR REGIONS FOR INNERVATION OF THE UPPER AND LOWER ...
... SPINAL CORD ANATOMY LENGTH 45 CM, 17-18 IN ENDS AT THE LEVEL OF L1-2 ENLARGEMENTS IN THE CERVICAL AND LUMBAR REGIONS FOR INNERVATION OF THE UPPER AND LOWER ...
The Mechanical Senses
... bends membrane – increases flow of sodium ions and triggers an action potential ...
... bends membrane – increases flow of sodium ions and triggers an action potential ...
THE NERVOUS SYSTEM: ITS MAJOR DIVISIONS
... DEPTT. OF PSYCHOLOGY G.C.G., SECTOR-11 C, CHANDIGARH ...
... DEPTT. OF PSYCHOLOGY G.C.G., SECTOR-11 C, CHANDIGARH ...
The Autonomic Nervous System
... Sympathetic Division of Autonomic Nervous System Preganglionic neuron starts in thoracic or lumbar levels of spinal cord. Preganglionic neuron synapses with postganglionic neuron relatively far from effector cells Parasympathetic Division of Autonomic Nervous System Preganglionic neuron starts in b ...
... Sympathetic Division of Autonomic Nervous System Preganglionic neuron starts in thoracic or lumbar levels of spinal cord. Preganglionic neuron synapses with postganglionic neuron relatively far from effector cells Parasympathetic Division of Autonomic Nervous System Preganglionic neuron starts in b ...
1 PYRAMIDS - CORTICOSPINAL FIBERS
... At the most caudal pole of the pyramids the corticospinal axons cross over the midline and now continue their descent on the contralateral (to the cell of origin) side. This crossover point is called the PYRAMIDAL DECUSSATION. The crossing fibers enter the lateral funiculus of the spinal cord where ...
... At the most caudal pole of the pyramids the corticospinal axons cross over the midline and now continue their descent on the contralateral (to the cell of origin) side. This crossover point is called the PYRAMIDAL DECUSSATION. The crossing fibers enter the lateral funiculus of the spinal cord where ...
Chapter 14 Autonomic Nervous System Nerve Cells of the Enteric
... Regulation of the ANS • Autonomic reflexes control most of activity of visceral organs, glands, and blood vessels • Autonomic reflex activity can be influenced by hypothalamus and higher brain centers • The sympathetic and parasympathetic divisions can influence activities of enteric nervous syste ...
... Regulation of the ANS • Autonomic reflexes control most of activity of visceral organs, glands, and blood vessels • Autonomic reflex activity can be influenced by hypothalamus and higher brain centers • The sympathetic and parasympathetic divisions can influence activities of enteric nervous syste ...
Presentation
... The resting potential of a neuron is maintained by differences in concentrations of specific ions inside the cell relative to the extracellular fluid and by selective permeability of the plasma membrane to these ions ...
... The resting potential of a neuron is maintained by differences in concentrations of specific ions inside the cell relative to the extracellular fluid and by selective permeability of the plasma membrane to these ions ...
Nervous and Endocrine System PowerPoint
... • The organs of the endocrine system release chemical signals called hormones to communicate with other organs in the body. • Hormones travel in blood through blood vessels and cause organ systems to carry out specific functions. ...
... • The organs of the endocrine system release chemical signals called hormones to communicate with other organs in the body. • Hormones travel in blood through blood vessels and cause organ systems to carry out specific functions. ...
File - BINZHOU MEDICAL UNIVERSITY
... This tract arises from the cerebral cortex, descends through the internal capsule and brain Stem, and is divided into: 1) Lateral corticospinal tract It decussates obliquely in the medulla oblongata and descends in lateral funiculus. 2) Anterior corticospinal tract It occupies a strip adjacent to th ...
... This tract arises from the cerebral cortex, descends through the internal capsule and brain Stem, and is divided into: 1) Lateral corticospinal tract It decussates obliquely in the medulla oblongata and descends in lateral funiculus. 2) Anterior corticospinal tract It occupies a strip adjacent to th ...
The Mechanical Senses
... Theories of Pitch Perception • The current pitch theory combines modified versions of both the place theory and frequency theory: – Low frequency sounds best explained by the frequency theory. – High frequency sounds best explained by place theory. ...
... Theories of Pitch Perception • The current pitch theory combines modified versions of both the place theory and frequency theory: – Low frequency sounds best explained by the frequency theory. – High frequency sounds best explained by place theory. ...
Neurology4
... **termination : the anterior gray column of the upper cervical segments of the spinal cord (don't forget that just the upper cervical segments). **function : coordination of movement of head, neck and eyes in response to auditory or visual stimulus . **Contralateral (there's crossing ) -notice that ...
... **termination : the anterior gray column of the upper cervical segments of the spinal cord (don't forget that just the upper cervical segments). **function : coordination of movement of head, neck and eyes in response to auditory or visual stimulus . **Contralateral (there's crossing ) -notice that ...
Bio_257_Unit_3_17
... products from the CSF and adjust its composition over time. CSF differs markedly from blood in its [soluble protein] and cellular content. • About 500mL of CSF is produced per day. The total volume of CSF at any given moment is 150mL • CSF circulates from the choroid plexus through the ventricles an ...
... products from the CSF and adjust its composition over time. CSF differs markedly from blood in its [soluble protein] and cellular content. • About 500mL of CSF is produced per day. The total volume of CSF at any given moment is 150mL • CSF circulates from the choroid plexus through the ventricles an ...
Nervous system, neuron, nerve impulse, peripheral nervous system
... The diagram below illustrates the relationship among different structures of the nervous system. Match each ellipse to the corresponding term. ...
... The diagram below illustrates the relationship among different structures of the nervous system. Match each ellipse to the corresponding term. ...
Slide 1
... 1. Somatic nervous system: concerned with voluntary control of skeletal muscles 2. Autonomic nervous system: concerned with involuntary control of glands, smooth & cardiac muscles ...
... 1. Somatic nervous system: concerned with voluntary control of skeletal muscles 2. Autonomic nervous system: concerned with involuntary control of glands, smooth & cardiac muscles ...
External features of spinal cord2009-03-07 04:492.5
... 1. Somatic nervous system: concerned with voluntary control of skeletal muscles 2. Autonomic nervous system: concerned with involuntary control of glands, smooth & cardiac muscles ...
... 1. Somatic nervous system: concerned with voluntary control of skeletal muscles 2. Autonomic nervous system: concerned with involuntary control of glands, smooth & cardiac muscles ...
The Nervous System
... insulation for the axon and speeds impulse conduction from the cell body to the axon terminals (white fiber) • * Lose the Myelin sheath and lose control over skeletal muscle (multiple sclerosis) ...
... insulation for the axon and speeds impulse conduction from the cell body to the axon terminals (white fiber) • * Lose the Myelin sheath and lose control over skeletal muscle (multiple sclerosis) ...
Tracts
... Most important pathway for voluntary motor function Some axons (corticonuclear fibers) terminate at the cranial nerve nuclei Other axons (corticospinal fibers) terminate on the motor anterior horn cells Third group of the axons (corticoreticular fibers) terminate at the nuclei of the reticular forma ...
... Most important pathway for voluntary motor function Some axons (corticonuclear fibers) terminate at the cranial nerve nuclei Other axons (corticospinal fibers) terminate on the motor anterior horn cells Third group of the axons (corticoreticular fibers) terminate at the nuclei of the reticular forma ...
The Nervous System The Spinal Cord The Spinal Cord The Spinal
... Dorsal median sulcus Gray commissure Dorsal horn Gray Ventral horn matter Lateral horn ...
... Dorsal median sulcus Gray commissure Dorsal horn Gray Ventral horn matter Lateral horn ...
L4-Asending tract
... 8-Which of these spinal pathways carries information from the right side of the body to the right side of the brain? A) anterior spinothalamic system B) lateral spinothalamic system E) medial lemniscal system C) spinocerebellar system D) anterior corticospinal system ...
... 8-Which of these spinal pathways carries information from the right side of the body to the right side of the brain? A) anterior spinothalamic system B) lateral spinothalamic system E) medial lemniscal system C) spinocerebellar system D) anterior corticospinal system ...
Self-Assessment Chapter 4, part 3 - CM
... Membranes – thin sheets of one or more tissues that line a body surface or cavity: • Most consist of a superficial epithelial layer resting on a connective tissue layer; sometimes contains smooth muscle • Functions: anchor organs in place, serve as barriers, function in immunity, and secrete various ...
... Membranes – thin sheets of one or more tissues that line a body surface or cavity: • Most consist of a superficial epithelial layer resting on a connective tissue layer; sometimes contains smooth muscle • Functions: anchor organs in place, serve as barriers, function in immunity, and secrete various ...
Astrocyte
For the cell in the gastrointestinal tract, see Interstitial cell of Cajal.Astrocytes (Astro from Greek astron = star and cyte from Greek ""kyttaron"" = cell), also known collectively as astroglia, are characteristic star-shaped glial cells in the brain and spinal cord. The proportion of astrocytes in the brain is not well defined. Depending on the counting technique used, studies have found that the astrocyte proportion varies by region and ranges from 20% to 40% of all glia. They perform many functions, including biochemical support of endothelial cells that form the blood–brain barrier, provision of nutrients to the nervous tissue, maintenance of extracellular ion balance, and a role in the repair and scarring process of the brain and spinal cord following traumatic injuries.Research since the mid-1990s has shown that astrocytes propagate intercellular Ca2+ waves over long distances in response to stimulation, and, similar to neurons, release transmitters (called gliotransmitters) in a Ca2+-dependent manner. Data suggest that astrocytes also signal to neurons through Ca2+-dependent release of glutamate. Such discoveries have made astrocytes an important area of research within the field of neuroscience.