1. Anatomical Landmarks and Cavities

2. Levels of Structural Organization
Chemical – _________________________
_____________ – cells are made of molecules
Tissue – consists of similar types of cells
Organ – _________________________________
_____________– consists of different organs that work closely together
___________________– made up of the organ systems
***The purpose of the 11 organ systems is for the human body to maintain homeostasis.

3. Anatomical Terminology
FIGURE 1–6 Anatomical Landmarks. Anterior

4. Anatomical Terminology

5. Anatomical Terminology

6. Divisions Axial Portions ___________ ________ Neck Trunk Upper limbs
____________

7. Axial Portions _________________ Vertebral canal __________________
Abdominopelvic Cavity

8. Body Cavities
The Axial portion of the body is then further divided into two major cavities – the dorsal cavity and the ventral cavity
Dorsal cavity protects the nervous system, and is divided into two subdivisions: _____________________________________
Ventral cavity houses the internal organs (viscera), and is divided into two subdivisions: - ________________________________

9. Body Cavities
Ventral Cavity
Figure 1.9a

10. Dorsal cavity Dorsal Body Cavities
____________________________________________________________
Vertebral cavity runs within the vertebral column and encases the spinal cord

11. Body Cavities
Ventral Cavity
Figure 1.9a

12. Ventral Body Cavities
Thoracic cavity is subdivided into pleural cavities, the mediastinum, and the pericardial cavity
_________________________
Mediastinum – contains the pericardial cavity, and surrounds the remaining thoracic organs
___________________________

13. Body Cavities
Figure 1.9b
Thoracic cavity

14. Ventral Body Cavities
The abdominopelvic cavity is separated from the superior thoracic cavity by the dome-shaped diaphragm
It is composed of two subdivisions
Abdominal cavity – ______________________________________________________________________________________
____________– lies within the pelvis enclosed by hip bones and contains the bladder, reproductive organs, and rectum

15. Body Cavities
Figure 1.9b
Thoracic cavity

16. Organs of the Abdominopelvic Regions
Figure 1.11b

17. Abdominopelvic Quadrants
Right upper
Left upper
Right lower
Left lower
Figure 1.12

18. Other Body Cavities
Oral and digestive – __________________________________
Nasal –located within and posterior to the nose
__________– house the eyes
Middle ear – contains bones (ossicles) that transmit sound vibrations
Synovial –_______________