Chapter 1 The Human Body: An Orientation
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the study of structure | anatomy
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subdivision of anatomy, hands on | gross/macroscopic anatomy
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subdivision of anatomy, cell structure | microscopic anatomy
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subdivision of anatomy, embryology | developmental anatomy
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the study of function at many levels | physiology
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subdivisions are based on each particular organ system | physiology
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principle of complementarity | anatomy and physiology and inseparable
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function always reflects ______ | structure
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what a structure can do depends on its _____ | form
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6 levels of structural organization | chemical, cellular, tissue, organ, organ system, organism
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chemical | atoms and molecules
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cellular | cells and their organelles
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tissue | groups of similar cells
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organ | 2 or more types of tissues
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organ system | organs that work closely together
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organism | all organ systems
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external body covering (hair, skin, nails) | integumentary system
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protects and supports organs, provides framework for muscles | skeletal system
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maintains posture, produces heat, motion and facial expressions | muscular system
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control system for the body, activates muscles and glands | nervous system
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glands secrete hormones to regulate cell processes | endocrine system
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transports blood carrying oxygen, carbon dioxide, nutrients, etc; heart pumps blood | cardiovascular system
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houses white blood cells, attacks foreign substances | lymphatic system
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supplies blood with oxygen and removes carbon dioxide | respiratory system
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breaks down food | digestive system
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regulates water, electrolyte and acid-base balance of blood, eliminates waste | urinary system
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reproduction | male and female reproductive systems
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anatomical position | body erect, feet slightly apart, palms forward
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toward the head | superior, cranial
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toward the lower body | inferior, caudal
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toward the front of the body | ventral, anterior
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toward the back of the body | dorsal, posterior
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toward or at the midline | medial
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away from midline | lateral
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between a medial and lateral structure | intermediate
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closer to the trunk of the body | proximal
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away from the trunk of the body | distal
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toward the body surface | superficial, external
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away from body surface | deep, internal
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axial body division | head, neck, trunk
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appendicular body division | limbs
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flat surface along which a body is cut for anatomical study | plane
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divides body into right and left | sagittal plane
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plane lies on midline | midsagittal plane, median
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place not on midline | parasagittal plane
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divides body into anterior and posterior parts | frontal plane
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divides body into superior and inferior parts | transverse plane, horizontal
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diagonal cut | oblique section
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cavity that protects the nervous system | dorsal cavity
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2 parts of the dorsal cavity | cranial and vertebral/spinal cavities
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cavity that encases brain | cranial cavity
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cavity that encases spinal cord | vertebral/spinal cavity
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cavity that houses internal organs | ventral cavity
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internal organs | viscera
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2 parts of the ventral cavity | thoracic and abdominopelvic cavities
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2 pleural cavities | each house a lung
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mediastinum | contains pericardial cavity, surrounds thoracic organs
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pericardial cavity | encloses heart
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cavity that contains the stomach, intestines, spleen and liver | abdominal cavity
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cavity that contains the urinary bladder, reproductive organs and rectum | pelvic cavity
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thin, double-layered membrane separated by serious fluid | serosa membrane
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parietal serosa | lines internal body walls
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visceral serosa | covers internal organs
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upper right and left regions | hypochondriac regions
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lower right and left regions | iliac/inguinal regions
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upper middle region | epigastric
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center-most region | umbilical region
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lower middle region | hypogastric/pubic region
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forehead | frontal
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eye socket | orbital
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nose | nasal
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mouth | oral
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chin | mental
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neck | cervial
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shoulder | acromial
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upper arm | brachial
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forearm | antebrachial
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armpit | axillary
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middle of chest | sternal
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breast | mammary
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belly button | umbilical
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inner elbow | antecubital
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thumb | pollex
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palm | palmar
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fingers, toes | digital
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hip | coxal
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upper leg | femoral
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knee | patellar
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shin | crural
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wrist | carpal
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ankle | tarsal
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top of foot | metatarsal
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big toe | hallux
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under umbilical | pelvic
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under pelvic | inguinal
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under inguinal | pubic
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ear | otic
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back of head | occipital
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back, shoulder blades | scapular
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elbow | olecranal
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spine | vertebral
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lower back | lumbar
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lower middle back | sacral
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butt | gluteal
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below butt | perineal
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back of hand | metacarpal
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back of knee | popliteal
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calf | sural
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lower leg | fibular, peroneal
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heel of foot | calcaneal
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bottom of foot | plantar
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hand | manus
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cheek | buccal
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