1. Organization of the Human Body
Lecture Notes:
Outcomes 1.3 and 1.6

2. Levels of Organization
Subatomic particles

3. Subatomic particles
Atom

4. Atom
Molecule

5. Subatomic particles
Atom
Molecule
Macromolecule

6. Subatomic particles
Atom
Molecule
Macromolecule
Organelle

7. Subatomic particles
Atom
Molecule
Macromolecule
Organelle
Cell

8. Subatomic particles
Atom
Molecule
Macromolecule
Organelle
Cell
Tissue

9. Subatomic particles
Atom
Molecule
Macromolecule
Organ
Organelle
Cell
Tissue

10. Subatomic particles
Atom
Organ system
Molecule
Macromolecule
Organ
Organelle
Cell
Tissue

11. Subatomic particles
Atom
Organ system
Molecule
Macromolecule
Organ
Organelle
Organism
Cell
Tissue

12. Body Cavities- Portions
Axial Portion vs. Appendicular Portion
Head
Neck
Trunk
Upper and Lower Limbs

13. Body Cavities of the Axial Portion
Cranial cavity
Vertebral canal
Thoracic cavity
Diaphragm
Abdominal
cavity
Abdominopelvic
cavity
Pelvic cavity
(a)
Cranial cavity
Vertebral canal
Mediastinum
Right pleural
cavity
Left pleural cavity
Thoracic cavity
Thoracic
cavity
Pericardial
cavity
Diaphragm
Abdominal
cavity
Abdominopelvic
cavity
Pelvic cavity
(b)

14. Serous Membranes
double membrane lining abdominopelvic cavity (peritoneum), lungs (pleura), and surrounding the heart (pericardium)
Parietal layer - attaches to cavity wall
Visceral layer - attaches to organ
Serous fluid between layers acts as lubricant

16. Pleural Membranes = Thoracic/Lungs

17. Pericardial Membranes= Heart

18. Thoracic Cavity: Pleural & Pericardial Membranes
Plane of
section
Vertebra
Spinal cord
Mediastinum
Azygos v.
Aorta
Left lung
Esophagus
Right lung
Rib
Right atrium
of heart
Left ventricle
of heart
Right ventricle
of heart
Visceral pleura
Visceral pericardium
Pleural cavity
Pericardial cavity
Parietal pleura
Anterior
Parietal pericardium
Sternum
Fibrous pericardium

19. Peritoneal Membranes= Abdomen & Pelvis

20. Abdominopelvic Cavity: Peritoneal Membranes
Spinal cord
Plane of
section
Vertebra
Right kidney
Aorta
Left
kidney
Inferior
vena cava
Spleen
Pancreas
Large
intestine
Small intestine
Large intestine
Liver
Rib
Gallbladder
Duodenum
Costal cartilage
Visceral peritoneum
Stomach
Peritoneal cavity
Anterior
Parietal peritoneum

21. Organ Systems