Back Anatomy

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 Memory of My First Day in Advance

Gross Anatomy Lab!

Presentationcadaver1
 
KNOW THE FOLLOWING:
1.YOUR SPINE 
2. MUSCLES OF THE BACK   
3.MOVEMENTS OF THE VERTEBRAL COLUMN
4.COMMON  REGIONS  OF INJURIES  DUE TO TRAUMA

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The Structure of The Spinal Column or Vertebral Column

The Vertebral Column or Spinal Column is the major support structure of the entire human body. It is composed of bony segments called vertebrae, which begin at the base of your skull and extend all the way to your lower back region. There are five different sections of an adult’s vertebral Column Cervical, Thoracic, Lumbar, Sacrum, Coccyx.

 

The Lumbar Vertebrae are the largest because they carry the weight of your upper body. During my undergraduate studies, one way I used to remember the number of vertebrae in each section is by reciting this little gem:

I have breakfast at 7 in the morning – 7 Cervical

I have lunch at 12 – 12 Thoracic

I have dinner at 5 – 5 Lumbar

Because I knew that there are 32 – 33 total vertebrae the remaining 8 had to be the 5 fused vertebrae (Sacrum) and 3 – 4 fused coccygeal (Coccyx).

Note: *The vertebral column typically consists of 33 vertebrae (7 cervical, 12 thoracic, 5 sacral & 4 coccygeal).  However, factors such as  sex , race, and developmental issues are responsible for variation in the number of vertebrae in individuals that are sometimes detected in medical images.

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3 Major Functions of The Spine

1.For protection of the spinal cord

2.Supports the body’s upright position

3.Serve as place of attachment for major muscles and ligaments

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The 3 Different Sections of the Vertebral Column
1.Cervical
2.Thoracic
3.Lumbar 4.Sacral
5.Coccygeal

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1.Major Back Muscles
2.Ligaments(grey-white)
3.Attaching to Spine

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The Position of the Vertebral Column in a Normal Individual

 

Movements of the Vertebral Column From L - R : Flexion, Hyperextension, Lateral Flexion to Right, Rotation to Right

Movements of the Vertebral Column
Flexion, Extension, Hyperextension, Lateral Flexion, and Rotation Occur at All the Joints of the Vertebral Column.

 

Imagevertebral movtmnt (127)

 

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Common Motor Vehicle and Football Injuries That May Cause Back Pain

 

football damage
    Hyperflexion  of the Neck Results in
               Torn Ligament or Rapture of Intervertebral
                    Disc C5/C6(Between Cervical Vertebra 5 & 6)
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Image (115)
         Hyperextension of the Neck — Resulting
      in a Crush or Compression Fracture of
Posterior Vertebral Arch Elements.
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During A Motor Vehicle Accident

The Cervical Region(neck region)

– Usually the Most Common Site of 

Injury. This Often Takes Place

When Motorists Are Rare-Ended.

Click On Picture Below to Enlarge.

Severe Hyperextension (Whiplash) Injury
of the Neck –May Cause the Anterior
Longitudinal Ligament to Tear Due to
Severe Stretching of the Neck.

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Imageback (140)

1. Can you identify the labeled areas above, and tell which of the following orders is correct?

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Imageback (139)

2. For the above labeled picture, which of the following orders is correct?

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Imageback (136)

3. Which of the following labeling orders is correct?

 

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Image back4(138)

4. Can you identify the labeled areas above, and tell which of the following orders is correct?

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Image6 (129)

5. Pay close attention to the labeling of this diagram and choose the correct order of back muscles:

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Image5 (128)

6. Below you are provided with 4 choices, choose the correct one:

Comments or questions are welcome.

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