Lecture 1 Intro to Anatomy and Physiology Body regions organ systems body cavities biological molecules

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Lecture 1Intro to Anatomy and PhysiologyBody
regionsorgan systemsbody cavitiesbiological
molecules
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Characteristics of all life forms

• O rganization
• R eproduction
• C hange grow, use energy
• A dapt populations respond to their environment
  They Evolve

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• What is anatomy?
• Anatomy
• Versus physiology
• Levels of organization

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Eleven Organ SystemsWhat does each do?How are
they studied?Gross anatomycytologyhistologyint
eractions - homeostasis
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Homeostasis

• The maintenance of a stable internal environment
  of a living organism within life sustaining,
  physiological limits.
• Involve Negative Feedback loops which require
• Sensor or receptor
• Control center
• effector

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Negative Positive Feedback Loops

• Negative feedback loop
• original stimulus reversed
• most feedback systems in the body are negative
• used for conditions that need frequent adjustment
• body temperature, blood sugar levels, blood
  pressure
• What happens if control fails?
• Positive feedback loop
• original stimulus intensified
• seen during normal childbirth

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• Dorsal Cavities
• Brain is enclosed in the _______________
• Spinal Cord in enclosed in _____________
• Ventral Cavities
• Above the diaphragm_________________
• Divided into/contains_____________________
• Protected by rib cage
• Below the diaphragm _________________
• Superior part contains stomach liver
  others
• Inferior part within coxal bones_____________

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• Body Regions
• Axial refers to _________________
• Appendicular refers to _____________
• Body region names
• Relate to anatomical names
• Part of the jargon
• See p 18 and fill-in exercise in lab manual

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• Planes and Sections
• Sagital
• Mid-sagital
• Para-sagital
• Frontal
• Transverse

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• Directional Terms
• Right - Left
• Medial Lateral
• Distal Proximal
• Dorsal Ventral Anterior Posterior
• Superior Inferior Cranial Caudal
• Superficial - Deep

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• A plane which divides the body into left and
  right parts would be a ___________.
• A ____________ plane separates dorsal and ventral
  parts of the body.
• The stomach is ___________ to the diaphragm.
• The carpal region is ___________ to the radius
  and ulna.
• The knee is __________ to the tibia.
• The urinary bladder is located in the __________
  cavity.
• Review others from 17-20 in lab manual

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• Scientific Method How we know what we know
• Observation leads to question why, what is
  relationship? etc.
• Possible answer explanation ___________
• Test of explanation _______________
• Test may support or reject explanation
• Theory a generally accepted concept
• Major theories in biology

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