Sodium and potassium are important within the nervous impulse; without those living organisms would not be able to send an impulse across a nerve‚ therefore we would not be able to survive. This is because‚ for depolarisation to take place‚ firstly there must be a resting potential at -70mv‚ this is acquired by the sodium-potassium pump‚ which pumps
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joint. The tight space between this fibrous band and the wrist bone is called the carpal tunnel. The median nerve passes through the carpal tunnel to receive sensations from the thumb‚ index‚ and middle fingers of the hand. Any condition that causes swelling or a change in position of the tissue within the carpal tunnel can squeeze and irritate the median nerve. Irritation of the median nerve in this manner causes tingling and numbness of the thumb‚ index‚ and the middle fingers -- a condition known
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in electrical potential associated with the passage of an impulse along the membrane of a muscle cell or nerve cell. An action potential occurs when a neuron sends information down an axon‚ away from the cell body. A threshold is the minimum amount of stimulation needed to start a neural impulse (you know‚ the electrical impulses that travel throughout your body carrying important information). Action potentials generated by neural impulses are "all or nothing‚" meaning the signal reaches the
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VITAMINS AND MINERALS Vitamins and minerals make people’s bodies work properly. Although you get vitamins and minerals from the foods you eat every day‚ some foods have more vitamins and minerals than others. Vitamins fall into two categories: fat soluble and water soluble. The fat-soluble vitamins — A‚ D‚ E‚ and K — dissolve in fat and can be stored in your body. The water-soluble vitamins — C and the B-complex vitamins (such as vitamins B6‚ B12‚ niacin‚ riboflavin‚ and folate) — need to dissolve
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Histology Laszlo Vass‚ Ed.D. Version 42-0013-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information
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ANTHROPOLOGY 316: Human Anatomy & Physiology I Lab Fall 2013 Lab L05-7052 Friday 12:35-2:35 AS 11 Lecturer: Kelli H. Tamvada‚ M.A. Contact Information: KTamvada@albany.edu Office location: AS 235 Office hours: Tuesdays 3:00-5:00‚ or by appointment Required Texts: Heisler‚ R. E.‚ Hebert‚ N.‚ Chinn‚ J. Krabbenhoft‚ K. M.‚ and Malakhova‚ O. (2014) PAL 3.0 Lab Guide: practical anatomy lab. Pearson Zao‚ P.‚ Stabler‚ T.‚ Smith‚ L.‚ Lokuta‚ A.‚ Griff‚ E. (2014). PhysioEx 9.0 Laboratory
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Components * There are three parts to the muscular system: * the muscles themselves‚ * nerve tissues and connective tissues. * The connective tissues (tendons) attach the muscles to the skeletal system. * The nerve tissues conduct the electrical impulses that control the muscles. Muscle characteristic * irritability‚: denotes how a muscle responds when it receives an electrical impulse or is damaged * contractibility‚: is how muscles move; they shorten‚ then relax to control
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II only (D) II and III only 4. Which of the following types of lens will correct short sightedness? (A) (B) (C) (D) 5. Which of the following parts of the eye functions as a receptor? (A) Iris (B) Lens (C) Retina (D) Optic nerve 6. The eye is sometimes referred to as an effector organ because (A) the pupil constricts in the presence of bright light (B) the rods and cones are stimulated by light (C) images which fall on the retina are sent to the brain (D) neurons from
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The biggest controversy of the deaf community has been the topic of a cochlear implant. The debate is centered around the expense‚ risk and idea of the implants causing deaf people to distance themselves from the deaf community rather than emerging themselves. This is due to the cochlear implants ability to provide a sense of sound to the deaf individual. It is only used when a hearing aid is not strong enough to provide adequate function. The cochlear implant involves a lot of time to consider the
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<br><br>When someone looks at an object‚ what he/she is really seeing is the light that the object reflects‚ or gives off. This reflected light passes through the lens and falls on to the retina of the eye. Here‚ the light induces nerve impulses that travel through the optic nerve to the brain‚ where it makes an image of the object‚ and then that image is passed on to muscles and glands.<br><br>The eye is well protected. It lies within a bony socket of the skull. The eyelids guard it in front. They blink
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