of reflexes. Local‚ Regional‚ conduction blocks‚ or spinal anesthetics disrupt sensation to specific body areas or parts‚ without causing unconsciousness. States of General Anesthesia: Stage I: The beginning anesthesia when reflexes present‚ heart rate normal‚ slower rate and increased depth of respiration‚ normal blood pressure (BP)‚ some dilation of eyes with reaction to light.
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afferent division of the peripheral nervous system that are involved in the activity of running are: skeletal muscles (Diagram 1)‚ sensory or afferent neurons‚ the Dendrites‚ the auditory nerve; the ear (4) the eyes and other sense organs found on the skin. The peripheral nervous systems (PNS) are made up of the nerves and ganglia found outside the brain and the spinal cord. Its main function is connecting the central nervous system (CNS) with the Effector organs such as the limb muscles. b) Two
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brain protected by cribiform)‚ optic nerve‚ and optic chiasm are. Know the path that axon tracts follow from the retina‚ to the occipital lobe of the brain. Think about what would happen to your vision if specific tracts were cut along the path from the retina to the occipital lobe. What visual deficits would you experience if you cut the tract at the right or left optic nerve‚ optic chasm‚ or lateral axons extending from the occipital lobe? The optic nerve carries information from the retina
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LEVELS OF ORGANIZATION OF NERVOURS SYSTEM: NEURONS: * STRUCTURE AND FUNCTION: Specialized cell transmitting nerve impulses; a nerve cell. Neurons have specialized projections called dendrites and axons. Dendrites bring information to the cell body and axons take information away from the cell body. Neurons communicate with each other through an electrochemical process. Information is transmitted to the receiving cell at junctions via chemical messengers called neurotransmitters. At this juncture
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Chapter 6 Integumentary System 6.1 Introduction The skin‚ the largest organ in the body‚ and its accessory structures constitute the integumentary system. 6.2 Skin and its tissues Skin is a protective covering‚ helps regulate body temperature‚ houses sensory receptors‚ synthesizes chemicals‚ and excretes wastes. It is composed of an epidermis and a dermis separated by a basement membrane. A subcutaneous layer‚ not part of the skin‚ lies beneath the dermis. The subcutaneous layer is composed of
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Carpal tunnel syndrome occurs when the median nerve‚ which runs from the forearm into the hand‚ becomes pressed or squeezed at the wrist. The median nerve controls sensations to the palm side of the thumb and fingers (although not the little finger)‚ as well as impulses to some small muscles in the hand that allow the fingers and thumb to move. The carpal tunnel‚ a narrow rigid passageway of ligament and bones at the base of the hand houses the median nerve and tendons. Thickening from irritated tendons
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are in the ANS? What are the names for the two neurons in the ANS system? What size fibers make up the preganglionic neurons? The postganglionic neurons? Why is the white ramus white‚ and the gray ramus gray? What does this mean for speed of conduction? Know the difference between paravertebral ganglia‚ collateral (prevertebral) ganglia‚ and terminal ganglia. Which division uses which? Which division has long preganglionic fibers? Long postganglionic fibers? Compare/contrast the autonomic
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direction (in square brackets after unit) * Position‚ displacement‚ acceleration * Velocity: * Rate of change of position * Average velocity: displacement divided by time interval for that change * 2-D motion: using GPS (global position system) * N/S/E/W to communicate directions * Ex: 5.0 cm [25° S of E] or [E25°S] * Acceleration: rate of change of velocity * V-t graph to find other things: * Area under line gives displacement‚ slope
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evolution‚ and the conscious development of cultural adaptations (Harrison et al.‚ 1988; Weiss and Mann‚ 1985). There are four avenues of heat loss: convection‚ conduction‚ radiation‚ and evaporation (Wikipedia‚ 2012). If skin temperature is greater than that of the surroundings‚ the body can lose heat by radiation and conduction. But if
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distance between two cities d. the size of an object under a microscope Measuring Displacements The direction and length of a straight line from the starting point to the ending point of an object’s motion is displacement. Displacement and velocity are examples of vectors because they have both magnitude and direction. EX: A person walks 1 mile every day for exercise‚ leaving her front porch at 9:00 A.M. and returning to her front porch at 9:25 A.M. What is the total displacement of her
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