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Nervous System
... homeostasis. Its functions are, monitoring the body’s internal and external environments. Another function: integrate sensory information. And, direct or coordinate the responses of other organ systems to the sensory input. ...
... homeostasis. Its functions are, monitoring the body’s internal and external environments. Another function: integrate sensory information. And, direct or coordinate the responses of other organ systems to the sensory input. ...
The Brain - Poudre School District
... Brain Stem: Lower extension of the brain where it connects to the spinal cord • Medulla Oblongata: Continuation of the spinal cord that contains ALL ascending and descending tracts – White matter only (myelinated axons) – All communication between brain and spinal cord passes through the Medulla Obl ...
... Brain Stem: Lower extension of the brain where it connects to the spinal cord • Medulla Oblongata: Continuation of the spinal cord that contains ALL ascending and descending tracts – White matter only (myelinated axons) – All communication between brain and spinal cord passes through the Medulla Obl ...
Chapter 9 Nervous
... Na ions are transferred out into extracellular fluid. K ions are transferred into cell within cytoplasm. This is threshold potential. The permeability of the cell membrane increases, allowing Na to rush into the cell. Cells interior takes a positive charge. (Called depolarization) Depolarization swe ...
... Na ions are transferred out into extracellular fluid. K ions are transferred into cell within cytoplasm. This is threshold potential. The permeability of the cell membrane increases, allowing Na to rush into the cell. Cells interior takes a positive charge. (Called depolarization) Depolarization swe ...
Unit Three- The Brain
... The basic function of the brain is to ____________________ which are, first and foremost, movements. Several different regions of the ________________ are involved in controlling the body's movements. These regions are organized into a hierarchy like the _____________________. On an ancient galley, ...
... The basic function of the brain is to ____________________ which are, first and foremost, movements. Several different regions of the ________________ are involved in controlling the body's movements. These regions are organized into a hierarchy like the _____________________. On an ancient galley, ...
Ch. 8 AP PP 2- Brain - Kalp-resources
... CNS - cushions delicate neural structures - supports- the brain floats in CSF - can be drawn to diagnose injury, infection, or disease - produced at CHOROID PLEXUS, a network of capillaries that extend into each ventricle - entire volume of CSF is replaced every 8 hours ...
... CNS - cushions delicate neural structures - supports- the brain floats in CSF - can be drawn to diagnose injury, infection, or disease - produced at CHOROID PLEXUS, a network of capillaries that extend into each ventricle - entire volume of CSF is replaced every 8 hours ...
Understanding Addiction - Solace Emotional Health
... life” (Elder Dallin H. Oaks, Liahona, May 2005). ...
... life” (Elder Dallin H. Oaks, Liahona, May 2005). ...
Topic: Nervous system Reading: Chapter 38 Main concepts
... relaxation techniques, can allow people to affect the degree of response) • Sympathetic division: “fight or flight” • Parasympathetic division: “rest and rumination” • Sensory portion • Sensory receptors collect information: chemoreception, mechanoreception, photoreception, etc. • Sensory neurons tr ...
... relaxation techniques, can allow people to affect the degree of response) • Sympathetic division: “fight or flight” • Parasympathetic division: “rest and rumination” • Sensory portion • Sensory receptors collect information: chemoreception, mechanoreception, photoreception, etc. • Sensory neurons tr ...
Chapter 2
... can speak of one universal human genome. Yet tiny genetic differences make a difference. If there is a: .001 percent difference in genome, your DNA would not match the crime scene/you are not the baby’s father. 0.5 to 4 percent difference in genome, you may be a chimpanzee. 50 percent differ ...
... can speak of one universal human genome. Yet tiny genetic differences make a difference. If there is a: .001 percent difference in genome, your DNA would not match the crime scene/you are not the baby’s father. 0.5 to 4 percent difference in genome, you may be a chimpanzee. 50 percent differ ...
VIII. Functional Brain Systems
... G. The cerebellar _____________ are 3 paired nerve tracts that allow the cerebellum to communicate with the rest of the brain 1. ___________ convey info. to the thalamus, then to motor areas of the cerebral cortex 2. ___________ convey impulses of voluntary movement from the cerebrum through the pon ...
... G. The cerebellar _____________ are 3 paired nerve tracts that allow the cerebellum to communicate with the rest of the brain 1. ___________ convey info. to the thalamus, then to motor areas of the cerebral cortex 2. ___________ convey impulses of voluntary movement from the cerebrum through the pon ...
BRAIN RESEARCH METHODS
... Can be used to observe a single neuron, with the tip of the electrode. It is a thin glass tube filled with salty fluid that conducts electricity ...
... Can be used to observe a single neuron, with the tip of the electrode. It is a thin glass tube filled with salty fluid that conducts electricity ...
Lecture 7A
... • The departments become more specialized the farther the information moves along the visual pathway. • Neurons in the lateral geniculate nuclei can be activated by visual stimulation from either one eye or the other but not both eyes. They respond to any change in activity of the retinal neuron tha ...
... • The departments become more specialized the farther the information moves along the visual pathway. • Neurons in the lateral geniculate nuclei can be activated by visual stimulation from either one eye or the other but not both eyes. They respond to any change in activity of the retinal neuron tha ...
unit 3A-3B DA BRAIN - Madeira City Schools
... All-or-None Response: A strong stimulus can trigger more neurons to fire, and to fire more often, but it does not affect the action potentials strength or speed. Intensity of an action potential remains the same throughout the length of the axon. ...
... All-or-None Response: A strong stimulus can trigger more neurons to fire, and to fire more often, but it does not affect the action potentials strength or speed. Intensity of an action potential remains the same throughout the length of the axon. ...
doc - Shoreline Community College
... 31. The gap between two neurons is called the ____________ and communication between two neurons is made possible by chemical messengers called _______________. 32. List 5 different neurotransmitters. For each one, list the primary functions and malfunctions it is associated with (see Table 3.1). (N ...
... 31. The gap between two neurons is called the ____________ and communication between two neurons is made possible by chemical messengers called _______________. 32. List 5 different neurotransmitters. For each one, list the primary functions and malfunctions it is associated with (see Table 3.1). (N ...
Brain Muscle Interface
... involves Brain and Spinal Cord. A stroke is defined as a medical emergency in which blood flow to the brain is compromised and within minutes, brain cells begin to die. There are two kinds of stroke. The more common kind, called ischemic stroke, is caused by a blood clot that blocks or plugs a blood ...
... involves Brain and Spinal Cord. A stroke is defined as a medical emergency in which blood flow to the brain is compromised and within minutes, brain cells begin to die. There are two kinds of stroke. The more common kind, called ischemic stroke, is caused by a blood clot that blocks or plugs a blood ...
ch 3 the brain pp - Madeira City Schools
... All-or-None Response: A strong stimulus can trigger more neurons to fire, and to fire more often, but it does not affect the action potentials strength or speed. Intensity of an action potential remains the same throughout the length of the axon. ...
... All-or-None Response: A strong stimulus can trigger more neurons to fire, and to fire more often, but it does not affect the action potentials strength or speed. Intensity of an action potential remains the same throughout the length of the axon. ...
Human brain
The human brain is the main organ of the human nervous system. It is located in the head, protected by the skull. It has the same general structure as the brains of other mammals, but with a more developed cerebral cortex. Large animals such as whales and elephants have larger brains in absolute terms, but when measured using a measure of relative brain size, which compensates for body size, the quotient for the human brain is almost twice as large as that of a bottlenose dolphin, and three times as large as that of a chimpanzee. Much of the size of the human brain comes from the cerebral cortex, especially the frontal lobes, which are associated with executive functions such as self-control, planning, reasoning, and abstract thought. The area of the cerebral cortex devoted to vision, the visual cortex, is also greatly enlarged in humans compared to other animals.The human cerebral cortex is a thick layer of neural tissue that covers most of the brain. This layer is folded in a way that increases the amount of surface that can fit into the volume available. The pattern of folds is similar across individuals, although there are many small variations. The cortex is divided into four lobes – the frontal lobe, parietal lobe, temporal lobe, and occipital lobe. (Some classification systems also include a limbic lobe and treat the insular cortex as a lobe.) Within each lobe are numerous cortical areas, each associated with a particular function, including vision, motor control, and language. The left and right sides of the cortex are broadly similar in shape, and most cortical areas are replicated on both sides. Some areas, though, show strong lateralization, particularly areas that are involved in language. In most people, the left hemisphere is dominant for language, with the right hemisphere playing only a minor role. There are other functions, such as visual-spatial ability, for which the right hemisphere is usually dominant.Despite being protected by the thick bones of the skull, suspended in cerebrospinal fluid, and isolated from the bloodstream by the blood–brain barrier, the human brain is susceptible to damage and disease. The most common forms of physical damage are closed head injuries such as a blow to the head, a stroke, or poisoning by a variety of chemicals which can act as neurotoxins, such as ethanol alcohol. Infection of the brain, though serious, is rare because of the biological barriers which protect it. The human brain is also susceptible to degenerative disorders, such as Parkinson's disease, and Alzheimer's disease, (mostly as the result of aging) and multiple sclerosis. A number of psychiatric conditions, such as schizophrenia and clinical depression, are thought to be associated with brain dysfunctions, although the nature of these is not well understood. The brain can also be the site of brain tumors and these can be benign or malignant.There are some techniques for studying the brain that are used in other animals that are just not suitable for use in humans and vice versa. It is easier to obtain individual brain cells taken from other animals, for study. It is also possible to use invasive techniques in other animals such as inserting electrodes into the brain or disabling certains parts of the brain in order to examine the effects on behaviour – techniques that are not possible to be used in humans. However, only humans can respond to complex verbal instructions or be of use in the study of important brain functions such as language and other complex cognitive tasks, but studies from humans and from other animals, can be of mutual help. Medical imaging technologies such as functional neuroimaging and EEG recordings are important techniques in studying the brain. The complete functional understanding of the human brain is an ongoing challenge for neuroscience.