Shared Flashcard Set

Details

muscles - spine/thorax
attachments with actions trailguide to the body
11
Anatomy
Undergraduate 3
09/27/2008

Additional Anatomy Flashcards

 


 

Cards

Term

Erector Spinae Group

 

O - Common Tendon (thoracolumbar aponeurosis), attaching to posterior surface of sacrum, iliac crest, spinous processes of lumbar and last thoracic vertebrae.

 

I - Posterior ribs, spinous and transverse processes of thoracic and cervical vertebrae, mastoid process of temporal bone.

Definition

Actions

        *Bilaterally extend vertebral column

        *Unilaterally flex vertebral column, same side

Term

Transversospinalis group

 

O - sacrum and transverse processes L, T, and C vertebrae, articular processes lower cervicals

 

I - Spinous processes L, T, and C vertabrae (x- C1), superior nuchal line of occiput

Definition

Actions

 

*  Bilaterally:  Extend vertebral column and head

 

*  Unilaterally:  Rotate vertebral column to opposite side

 

Term

Splenius Capitus and Cervicis

Capitus

O - Ligamentum nuchae, spinous processes of C7 - T3

I - Mastoid process and lateral portion of superior nuchal line

 

Cervicis

O - Spinous process T3-T6

I -  Transverse process upper cervical vertebrae

Definition

Actions

 

*Unilaterally:  rotate head to same side

        

                         flex head/neck

 

*Bilaterally:  Extend head/neck

Term

Suboccipitals

 

O - Spinous process of axis (C2), tubercle and transverse process of atlas (C1)

 

I - Inferior nuchal line of occiput, transverse process atlas (C1)

Definition

Actions

 

*rock and tilt head into extension

 

*rotate head to same side

Term

Quadratus Lumborum

 

O - Posterior iliac crest

 

I - Last rib and transverse processes of 1st-4th lumbar vertebrae.

Definition

Actions

 

*Elevate hip

*Laterally flex vertebral column

*Assist in extending vertebral column

*Fixes last rib during respiration

Term

Rectus Abdominus

 

O - Pubic crest, pubic symphysis

 

I - Cartilage of 5th, 6th, and 7th ribs and xiphoid process

Definition

Actions

 

*Flex vertebral column

Term

External Oblique

 

O - Lower 8 ribs

 

I - Anterior part iliac crest, abdominal aponeurosis to linea alba

Definition

Actions

 

*Flex vertebral column

*Laterally flex vertebral column to same side

*Compress abdominal contents

*Rotate vertebral column to opposite side

 

Term

Internal Oblique

 

O - Lateral inguinal ligament, iliac crest and thoracolumbar fascia

 

I - Internal surface lower 3 ribs, abdominal aponeurosis to linea alba

Definition

Actions

 

*Flex vertebral column

*Compress abdominal contents

*Laterally flex vertebral column to same side

*Rotate vertebral column to same side

Term

Transverse Abdominus

 

O - Lateral inguinal ligament, iliac crest, thoracolumbar fascia and internal surface of lower 6 ribs

 

I - Abdominal aponeurosis to linea alba

Definition

Actions

 

*Compress abdominal contents

 

Term

Intercostals

 

O - Inferior border of rib above

 

I - Superior border of rib below

Definition

Actions

 

*External:  Increase space of thoracic cavity

 

*Internal:  Decrease space of thoracic  cavity

 

Term

Diaphragm

 

O - Costal Attachment:  Inner surface lower 6 ribs

     Lumbar Attachment: Upper 2 or 3 lumbar vertebrae

     Sternal Attachment:  Inner part of xiphoid process

 

I  - Central tendon

Definition

Actions

 

*Draw down central tendon of diaphragm

 

*Increase volume of thoracic cavity

 

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