BIOB34H3 Chapter Notes - Chapter 1: Perineum, Peritoneum, Thoracic Cavity

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20 Mar 2013
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Chapter 1 The Human Body: An Orientation
Terms
- Anatomy: the study of body structure and relationships among structures
- Physiology: the study of body function
Levels of Organization
- Chemical level
1. atoms and molecules
- Cells
1. the basic unit of all living things
- Tissues
1. cells join together to perform a particular function
- Organs
1. tissues join together to perform a particular function
- Organ system
1. organs join together to perform a particular function
- Organismal
1. the whole body
Organ Systems
Anatomical Position
Regional Names
- Axial region
1. head
2. neck
3. trunk
a. thorax
b. abdomen
c. pelvis
d. perineum
- Appendicular region
1. limbs
Directional Terms
- Superior (above) vs. Inferior (below)
- Anterior (toward the front) vs. Posterior (toward the back)(Dorsal vs. Ventral)
- Medial (toward the midline) vs. Lateral (away from the midline)
- Intermediate (between a more medial and a more lateral structure)
- Proximal (closer to the point of origin) vs. Distal (farther from the point of origin)
- Superficial (toward the surface) vs. Deep (away from the surface)
Planes and Sections divide the body or organ
- Frontal or coronal
1. divides into anterior/posterior
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Document Summary

Anatomy: the study of body structure and relationships among structures. Cells: the basic unit of all living things. Tissues: cells join together to perform a particular function. Organs: tissues join together to perform a particular function. Organ system: organs join together to perform a particular function. Organismal: the whole body, organ systems, anatomical position, regional names. Axial region: head, neck, trunk, thorax, abdomen, pelvis, perineum. Anterior (toward the front) vs. posterior (toward the back)(dorsal vs. ventral) Medial (toward the midline) vs. lateral (away from the midline) Intermediate (between a more medial and a more lateral structure) Proximal (closer to the point of origin) vs. distal (farther from the point of origin) Deep (away from the surface: directional terms, planes and sections divide the body or organ. Frontal or coronal: divides into anterior/posterior. Sagittal: divides into right and left halves, includes midsagittal and parasagittal. Transverse or cross-sectional: divides into superior/inferior, body cavities.

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