introduction to anatomy & physiology of sports the human body – an orientation: anatomy –...
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Introduction to Anatomy Introduction to Anatomy & Physiology of Sports& Physiology of Sports
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The Human Body – An Orientation:The Human Body – An Orientation:
ANATOMY – ANATOMY – study of the structure study of the structure and shape of the body and its partsand shape of the body and its parts
PHYSIOLOGY – PHYSIOLOGY – study of how the study of how the bodybody and its parts work or functionand its parts work or function
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Anatomy – levels of study:Anatomy – levels of study:
Gross anatomyGross anatomy• Large structuresLarge structures• easily observableeasily observable
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Anatomy – levels of study:Anatomy – levels of study:
Microscopic anatomyMicroscopic anatomy• Very smallVery small• can only be viewed with a microscopecan only be viewed with a microscope
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Levels of structural organization:Levels of structural organization:
1.1. Chemical level (atoms and Chemical level (atoms and molecules)molecules)
2.2. Cellular levelCellular level
3.3. Tissue levelTissue level
4.4. Organ levelOrgan level
5.5. Organ system levelOrgan system level
6.6. Organism levelOrganism level
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Levels of structural organizationLevels of structural organization
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Necessary Life Functions
1. Maintain boundaries2. Movement
LocomotionMovement of substances
3. ResponsivenessAbility to sense changes and react
4. DigestionBreakdown and delivery of nutrients
5. MetabolismProduction of energyMaking body structures
6. ExcretionElimination of waste from metabolic reactions
7. ReproductionProduction of future generations
8. GrowthIncreasing cell size and number
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Survival NeedsSurvival Needs NutrientsNutrients
Chemicals for energy and cell buildingChemicals for energy and cell buildingIncludes carbo’s, lipids, proteins, vitamins, Includes carbo’s, lipids, proteins, vitamins,
and mineralsand minerals OxygenOxygen
Required for chemical reactionsRequired for chemical reactions WaterWater
60 – 80% of body weight60 – 80% of body weightProvides for metabolic reactionsProvides for metabolic reactions
Stable body temperatureStable body temperature Atmospheric pressureAtmospheric pressure
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Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Homeostasis Maintenance of a stable internal environment
= a dynamic state of equilibrium
Homeostasis must be maintained for normal body functioning and to sustain life
Homeostatic imbalance – a disturbance in homeostasis resulting in disease
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Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Overview of Homeostasis
Figure 1.4
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The Language of AnatomyThe Language of Anatomy
Special terminology is used to Special terminology is used to prevent misunderstandingprevent misunderstanding
Exact terminology is used forExact terminology is used for1.1. PositionPosition
2.2. DirectionDirection
3.3. RegionsRegions
4.4. StructuresStructures
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ORGAN SYSTEMS ORGAN SYSTEMS OVERVIEWOVERVIEW
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The Skeletal SystemThe Skeletal System Protects and supportsProtects and supports
Provides muscleProvides muscleattachmentattachment
Blood cellBlood cell
formationformation
Stores mineralsStores minerals
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The Muscular SystemThe Muscular System
LocomotionLocomotion
PosturePosture
Produces heatProduces heat
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The Nervous SystemThe Nervous System
Fast-acting controlFast-acting controlsystemsystem
Responds to internal Responds to internal andandexternal changeexternal change
Activates muscles Activates muscles andandglandsglands
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Cardiovascular SystemCardiovascular System
Transports materials Transports materials via blood pumped by via blood pumped by heartheart• OxygenOxygen• Carbon dioxideCarbon dioxide• NutrientsNutrients• WastesWastes
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The Respiratory SystemThe Respiratory System
Supplies blood with Supplies blood with oxygenoxygen
Removes carbon Removes carbon dioxidedioxide
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The Digestive SystemThe Digestive System
DigestionDigestion
Nutrient absorptionNutrient absorption
Eliminates Eliminates
indigestible materialindigestible material
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Body PlanesBody Planes
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Planes of Planes of the Bodythe Body
Median PlaneMedian Plane
(mid-sagittal)(mid-sagittal)
Cuts into Cuts into rightright
and left sidesand left sides
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Planes of Planes of the Bodythe Body
Frontal PlaneFrontal Plane(coronal)(coronal)
Cuts into Cuts into front front and back sectionsand back sections
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Planes of Planes of the Bodythe Body
Transverse Transverse PlanePlane
Cuts into Cuts into top top and bottom and bottom
sectionssections
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Body CavitiesBody Cavities
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Body CavitiesBody Cavities Ventral Cavities: (anterior or front)
•Thoracic cavityholds the heart and lungs Abdominopelvic divides into:•Abdominal cavity •holds the digestive organs•Pelvic cavity •holds the reproductive organs
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Dorsal Cavities:(Posterior or back)
•Cranial cavity holds the brain
•Spinal cavity holds the spinal cord
Body CavitiesBody Cavities
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Anatomical PositionAnatomical PositionFeet togetherArms to the sideHead eyes and palms of the hands facing forward
The thumb is a lateral structure, not an anterior one
Anatomical position ensures consistency in conversation and explanations.
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Orientation of the BodyOrientation of the Body
Superior (cranial or Superior (cranial or cephalad)cephalad)
Toward the Toward the headhead end or end or upper part of a structure upper part of a structure or the body; above.or the body; above.
Inferior (caudal)Inferior (caudal) Away from the head end Away from the head end
or toward the or toward the lower part lower part of a structure or the of a structure or the body; belowbody; below
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Anterior and PosteriorAnterior and Posterior
Anterior (ventral)Anterior (ventral) Toward or at the Toward or at the
front front of the body: of the body: in front of in front of
Posterior (dorsal)Posterior (dorsal) Toward or at the Toward or at the
backsidebackside of the of the body: behindbody: behind
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Medial and LateralMedial and Lateral
MedialMedial Toward or at the Toward or at the
midlinemidline of the of the body: on the body: on the innerinner side ofside of
LateralLateral Away from the Away from the mid mid
line line of the body: on of the body: on the the outerouter side of side of
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Proximal and DistalProximal and Distal
ProximalProximal Close to the origin of Close to the origin of
the body part or the the body part or the point ofpoint of attachment of attachment of a limba limb to the body to the body trunktrunk
DistalDistal Farther from Farther from the origin the origin
of the body part or the of the body part or the point of attachment of point of attachment of a limb to the body a limb to the body trunktrunk