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The Language of anatomy. Chapter 1, pages 15-22. Anatomical position. Anatomical postion -standard body position Body is erect with the feet parallel Arms hanging at the sides with palms facing forward http://www.ronjones.org/Health&Fitness/FunctionalTraining/anatomicalposition.htm.
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The Language of anatomy Chapter 1, pages 15-22
Anatomical position • Anatomical postion-standard body position • Body is erect with the feet parallel • Arms hanging at the sides with palms facing forward http://www.ronjones.org/Health&Fitness/FunctionalTraining/anatomicalposition.htm
Directional terms • Used to explain exactly where one body structure is located in relation to another • Saves long descriptions • Examples: • Superior • Inferior • Ventral (anterior) • Dorsal (posterior) • Medial • Lateral • Proximal • Distal • Superficial (external) • Deep (internal)
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Practice • The wrist is ________________ to the hand. • Proximal • The breastbone is ____________ to the spine. • Superficial • The brain is _______________ to the spinal cord. • Superior • The thumb is _____________ to the fingers. (Hint: remember anatomical position) • Lateral
Body planes and sections • Section or cuts are made by medical students through an imaginary line or plane • There are 3 types of planes: • Sagittal section-cut longitudinally to divide the body into left and right parts • Frontal section-lengthwise cut that divides the body into ventral and dorsal parts • Transverse section-horizontal cut that divides the body into superior and inferior parts or cross section
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Body cavities • Body cavities are spaces within the body that contain, protect, separate, and support internal organs. • Two sets of internal body cavities: • Dorsal body cavity • Cranial cavity • Spinal cavity • Ventral body cavity • Thoracic cavity • Abdominopelvic cavity • Abdominal cavity • Pelvic cavity
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Ventral body cavity • Diaphragm-dome shaped muscle that separates the thoracic cavity and abdominopelvic cavity • Mediastinum-separates the lungs into right and left cavities in the thoracic cavity • Houses the heart, trachea, and other visceral organs
Dividing the abdominopelvic region • Medical personnel use 4 of less quadrants when describing the different areas:
Dividing the abdominopelvic region • Anatomists divide the abdominopelvic cavity into 9 regions:
Open body cavities • In addition to the large closed body cavities, there are several smaller body cavities. • Oral and digestive cavities start with mouth and extend to anus. • Nasal cavity part of the respiratory passageway. • Orbital cavities house the eyes • Middle ear cavities house 3 tiny bones that transmit sound vibrations to sound receptors in the cochlea (inner ear)