Chapter 1 Flashcards
Define anatomy and physiology and describe their subdivisons
Anatomy: studies the structure of body parts and their relationships to one another; gross, regional, systemic, surface, microscopic, developmental
Physiology concerns the function of the body; renal, neurophysiology, cardiovasular
Explain the principle of complementarity
Anatomy and physiology are inseparable because function always reflects structure
Name the levels of structural organization
chemical, cellular, tissue, organ, organ system, organismal
List the functional characteristics necessary to maintain life in humans
Maintaining boundaries, movement, responsiveness, digestion, metabolism, excretion, and reproduction, growth
List the survival needs of the body
Nutrients, oxygen, water, normal body temperature, appropriate atmospheric pressure
List the 11 organ systems
integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, reproductive
Define homeostasis and explain its significance
The ability to maintain relatively stable internal conditions even though the outside world changes continuously
Describe homeostatic control
- Stimulus produces change
- Receptor detects change
- Input: afferent pathway –> control center
- Output: efferent pathway –>effector
- Response
Describe negative and positive feedback
Negative: shuts off original effect or reduces its intensity
Positive: response enhances the original stimulus so that the response is accelerated
Describe the anatomical position
body erect, feet slightly apart, palms face forward, thumbs point up
Directional terms
Superior/Inferior Ventral/Dorsal Medial/Lateral Intermediate Proximal/Distal Superficial/Deep
Regional terms
Axial/Appendicular
Look in book for further divisions
Body planes
Sagittal/Midsagittal/Parasagittal
Frontal
Transverse
(Oblique)
Major cavities and subdivisions
Dorsal: cranial, spinal
Ventral: thoracic (pleural, mediastinum, pericardial cavities), abdominopelvic (abdominal, pelvic)
Define and explain the serous membrane
A thin, double-layer membrane that covers the walls of the ventral body cavity and outer surfaces of the organs; parietal serosa lines the cavity walls; visceral serosa covers the organs; membranes separated by serous fluid