The Physiological spine model with soft discs and stand has extra soft disc material, which shows natural compression of discs under movement of the spine. While moving the spine one side of a disc gets compression from the vertebrae above and below material gets pressed out of the vertebrae - just like natural human disc material does. The Physiological spine model comes with an extra flexible metal joint rod and a flexible pelvis mounting, spinal cord, nerves, arteries, a sectioned sacrum, femur heads and stand.
![Human Skeleton Model "Sam" with Muscles & Ligaments - 3B Smart Anatomy, 1020176 [A13], Skeleton Models - Life size](/thumblibrary/A13/A13_01_140_140_Human-Skeleton-Model-Sam-with-Muscles-Ligaments-3B-Smart-Anatomy.jpg)
![Flexible Human Skeleton Model Fred - 3B Smart Anatomy, 1020178 [A15], Skeleton Models - Life size](/thumblibrary/A15/A15_01_140_140_Flexible-Human-Skeleton-Model-Fred-3B-Smart-Anatomy.jpg)
![Classic Flexible Human Spine Model with Ribs & Femur Heads - 3B Smart Anatomy, 1000120 [A56/2], Human Spine Models](/thumblibrary/A56-2/A56-2_01_140_140_Classic-Flexible-Human-Spine-Model-with-Ribs-Femur-Heads-3B-Smart-Anatomy.jpg)
![Highly Flexible Human Spine Model, Mounted on a Flexible Core, with Femur Heads - 3B Smart Anatomy, 1000131 [A59/2], Human Spine Models](/thumblibrary/A59-2/A59-2_01_140_140_Highly-Flexible-Human-Spine-Model-Mounted-on-a-Flexible-Core-with-Femur-Heads-3B-Smart-Anatomy.jpg)
![Stages of Disc Prolapse and Vertebral Degeneration - 3B Smart Anatomy, 1000158 [A795], Vertebra Models](/thumblibrary/A795/A795_01_140_140_Stages-of-Disc-Prolapse-and-Vertebral-Degeneration-3B-Smart-Anatomy.jpg)
![Pitting Edema Trainer, 3004480 [W44785], Edema Diagnosis](/thumblibrary/W44785/W44785_01_140_140_Pitting-Edema-Trainer.jpg)
![Non-Pitting Edema Trainer, 3004481 [W44786], Edema Diagnosis](/thumblibrary/W44786/W44786_01_140_140_Non-Pitting-Edema-Trainer.jpg)
![Physiological Human Skeleton Model Phil on Hanging Stand - 3B Smart Anatomy, 1020179 [A15/3], Skeleton Models - Life size](/thumblibrary/A15-3/A15-3_01_140_140_Physiological-Human-Skeleton-Model-Phil-on-Hanging-Stand-3B-Smart-Anatomy.jpg)
![Deluxe Functional Human Shoulder Joint, Physiological Movable - 3B Smart Anatomy, 1000160 [A80/1], Joint Models](/thumblibrary/A80-1/A80-1_01_140_140_Deluxe-Functional-Human-Shoulder-Joint-Physiological-Movable-3B-Smart-Anatomy.jpg)
![Functional Human Hip Joint Model - 3B Smart Anatomy, 1000161 [A81], Joint Models](/thumblibrary/A81/A81_01_140_140_Functional-Human-Hip-Joint-Model-3B-Smart-Anatomy.jpg)
![Functional Human Knee Joint Model with Ligaments - 3B Smart Anatomy, 1000163 [A82], Joint Models](/thumblibrary/A82/A82_01_140_140_Functional-Human-Knee-Joint-Model-with-Ligaments-3B-Smart-Anatomy.jpg)
![Functional Human Knee Joint Model with Ligaments & Marked Cartilage - 3B Smart Anatomy, 1000164 [A82/1], Joint Models](/thumblibrary/A82-1/A82-1_01_140_140_Functional-Human-Knee-Joint-Model-with-Ligaments-Marked-Cartilage-3B-Smart-Anatomy.jpg)
![Functional Human Elbow Joint Model with Ligaments - 3B Smart Anatomy, 1000165 [A83], Joint Models](/thumblibrary/A83/A83_01_140_140_Functional-Human-Elbow-Joint-Model-with-Ligaments-3B-Smart-Anatomy.jpg)
![Human Shoulder Joint Model with Rotator Cuff & 4 Removable Muscles, 5 part - 3B Smart Anatomy, 1000176 [A880], Joint Models](/thumblibrary/A880/A880_01_140_140_Human-Shoulder-Joint-Model-with-Rotator-Cuff-4-Removable-Muscles-5-part-3B-Smart-Anatomy.jpg)
![Human Ear Model, 3 times Life-Size, 6 part - 3B Smart Anatomy, 1000251 [E11], Ear Models](/thumblibrary/E11/E11_01_140_140_Human-Ear-Model-3-times-Life-Size-6-part-3B-Smart-Anatomy.jpg)
![Liver Model with Gall Bladder - 3B Smart Anatomy, 1014209 [K25], Digestive System Models](/thumblibrary/K25/K25_01_140_140_Liver-Model-with-Gall-Bladder-3B-Smart-Anatomy.jpg)
![Foot Skeleton Model with Ligaments - 3B Smart Anatomy, 1000359 [M34], Joint Models](/thumblibrary/M34/M34_01_140_140_Foot-Skeleton-Model-with-Ligaments-3B-Smart-Anatomy.jpg)