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Anatomic Reference Systems. Describe the location and functions of body parts using: Body planes Body directions Body cavities Body Regions. (continues). Surface Anatomy. Anatomical position – hands at side, palms up, feet forward and together. Supine – anatomical position lying face up
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Anatomic Reference Systems • Describe the location and functions of bodyparts using: • Body planes • Body directions • Body cavities • Body Regions (continues)
Surface Anatomy • Anatomical position – hands at side, palms up, feet forward and together. • Supine – anatomical position lying face up • Prone – anatomical position lying face down
Anatomical Landmarks See page 16
Abdominopelvic Quadrants 4 Quadrants RUQ RLQ LUQ LLQ Describing areas of concern by clinicians.
Abdominopelvic Regions More precise locations when discussing clinically External landmarks help identify internal organ location. (continues)
Planes Transverse- superior/inferior section (cross-section) Frontal/Coronal – anterior (ventral)/posterior (dorsal) Sagittal – left/right (continues)
Directional Terms • Be familiar with terms on P. 19 • Let’s practice
Anatomic Reference Systems (continues)
Anatomic Reference Systems (continues)
Body Cavities • Ventral Body Cavity (Coelem) • Contains most internal organs- rearranges during fetal development • Divided into 2 cavities by the diaphragm (flat muscular sheet) • Thoracic • Abdominopelvic • Organs in cavities change shape during various physiological activities. • Organs known as viscera • Covered by membrane known as visceral layer.
Body Cavities cont. • Thoracic cavity • 1 Pericardial cavity (heart) • 2 pleural cavities (lungs) • Membranes: • Pericardium (peri-around, cardi-heart) • Visceral – covers the heart • Parietal – the opposing surface • Surrounded by the mediastinum • Pleura • Visceral covers the lungs • Parietal- opposing surface
Body Cavities cont. • Abdominopelvic – below diaphragm to the pelvis • Abdominal cavity • Liver, stomach, spleen, SI, LI • Pelvic cavity • LI, blader