9-1 * adaptation - a decrease in receptor sensitivity or perception after constant stimulation * receptor A had a circular receptive field with a diameter of 2.5 cm. receptor b has a circular receptive field 7.0 cm in diameter. which receptor provides more precise sensory info? * receptor A provides more information because it has a smaller receptive field. * 5 special senses - smell (ofalction)‚ taste (gustation)‚ vision‚ balance (equilibrium)‚ hearing 9-2 * general sensory
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throughout the body. The heart and the circulatory system together form the cardiovascular system. Heart Anatomy: Chambers Atria - upper two chambers of the heart. Ventricles - lower two chambers of the heart. Heart Anatomy: Heart Wall Epicardium - the outer layer of the wall of the heart. Myocardium - the muscular middle layer of the wall of the heart. Endocardium - the inner layer of the heart. Heart Anatomy: Cardiac Conduction Cardiac Conduction is the rate
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Hormones and Metabolism Activity 1: Determining the Baseline Metabolic Rates 1. Which rat had the fastest baseline metabolic rate? Normal rate 2. Why did the metabolic rates differ? Because of the different organs that were removed from the two other rats that would produce certain hormones 3. If an animal has been thyroidectomized‚ what hormone(s) would be missing from its blood? thyroxine 4. As a result of the missing hormone(s)‚ what would the overall effect on the body and metabolism
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Duchenne Muscular Dystrophy Duchenne muscular dystrophy is a fatal genetic disorder that causes progressive muscle weakness throughout your body. This disorder is caused my mutations in the dystrophin gene. The dystrophin gene is responsible for the production of a muscle protein. So the muscles suffer a loss of protein and contractile fibers. Then the muscles replaced with fat and connective tissue. DMD mostly affects young males exclusively due to an x-linked recessive inheritance pattern
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BTEC Level 3 Unit 2: The Physiology of Fitness Describe the musculoskeletal and energy systems response to acute exercise. What is an acute response? An acute response is an immediate response to exercise. Acute exercise will last throughout the full length of your training session. During the training session our bodies begin to respond to the exercises we are doing and begin to feel the changes within our bodies and mind due to physical strain and stress of the physical activity in lots
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Chapter 10 Muscles 1) The study of the muscular system is known as a) kinesiology. b) pathophysiology. c) myology. d) biology. e) neurology. 2) All of the following are functions of muscles except a) stability. b) heat production. c) control of openings. d) secretion. e) respiration. 3) What term best describes the relationship between the pronator teres and supinator? a) Fixators b) Antagonists c) Synergists d) prime movers e) depressors 4) Muscle fibers are arranged in
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RESPIRATORY Wednesday‚ March 28‚ 2012 1:57 PM 1. 2. - Respiration Acquiring oxygen form the environment Respiration is the process of the obtaining oxygen from the external environment and eliminating CO2 Dived into 2 parts: External Respiration Exchange of the environment with the respiratory organ Internal Respiration Exchange of gas between blood and the tissue cells 1. 2. 3. - Adequate Respiratory Apparatus Large surface area For contact between the environmental medium (water or
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Anatomy and Physiology The main components of the brain—the cerebrum‚ the cerebellum‚ diencephalon and the brainstem—have distinct functions. The Cerebrum Is the largest and most developmentally advanced part of the human brain. It is responsible for several higher functions‚ including higher intellectual function‚ speech‚ emotion‚ integration of sensory stimuli of all types‚ initiation of the final common pathways for movement‚ and fine control of movement. The cerebrum is divided into a right
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MUSCLE PHYSIOLOGY Exercise 11 Acuesta‚ Patrisha Afalla‚ Antonette Hanns Beo‚ Jellie Ayz Bustamante‚ Jemimah Keziah Soriano‚ Jhon Cris Introduction • Muscle Contraction - the shortening of the muscle as a result of tension generated by muscle fibers; -Regulated by the production of calcium ions‚ stimulated via thermal‚ chemical‚ mechanical‚ and electrical stimuli Objectives BE ABLE TO: 1. Make a muscle-femur preparation; Set up Kymograph; Demonstrate muscular contraction; Differentiate
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the rate of facilitated diffusion Fully permeable(permeable to solutes and water) Water moves down the concentration gradient‚ or towar the solution with the highest concentration solutes….resulting in a volume increase Osmotic pressure(closed system)(mmHG)‚ the more impermeable the higher the osmotic pressure Tonicity(shrink or swell); how a solution affects the volume of a cell Isotonic: same inside and outside Hypertonic: higer
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