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Details

Muscles - Pelvis/lower limb
Origin/Insertion/Action
7
Anatomy
Undergraduate 1
11/27/2008

Additional Anatomy Flashcards

 


 

Cards

Term
[image]
Definition

Origin:

• pubic symphysis and pubic crest

 

Insertion:

• xiphoid process

• 5
th – 7th costal cartilages

 

Nerve: inferior 6 intercostal nerves

 

Action:

flexion of the trunk (lumbar vertebrae)

compresses abdominal cavity

Term
[image]
Definition

Origin:

• external surfaces of 5
th – 12th ribs

Insertion:

• linea alba

• pubic tubercle

• anterior ½ of iliac crest

 

Nerve: inferior 6 intercostal nerves

 

Action:

Unilaterally: contralateral rotation,

and lateral flexion

Bilaterally: flexes trunk and compresses abdominal cavity

Term
[image]
Definition

Origin:

• thoracolumbar fascia

• anterior 2/3rds of iliac crest

• lateral half of inguinal ligament

 

Insertion:

• inferior borders of 10
th - 12th ribs

• linea alba

• pectin pubis

 

Nerve: inferior 6 intercostal nerves

 

Action:

Unilaterally: ipsilateral rotation, lateral flexion

Bilaterally: flexes trunk and compresses abdominal cavity

Term
[image]
Definition

Origin:

• internal surfaces of 7
th – 12th costal cartilages

• thoracolumbar fascia

• iliac crest

• lateral 1/3rd of inguinal ligament

Insertion:

• linea alba with aponeurosis of internal oblique

• pubic crest

• pectineal line

 

Nerve: inferior 6 intercostal nerves

 

Action:

compression of the abdominal cavity

support of viscera

Comments:

• Innermost of the 3 flat abdominal muscles

• Its fibers travel horizontally and end in an aponeurosis

Term
[image]
Definition

Origin:

• iliac fossa

• iliac crest

• ala of sacrum

• anterior SI ligament

 

Insertion:

• blends with the psoas major to insert onto the lesser trochanter

 

Nerve: ventral rami of L1- L3

 

Action:

Hip flexion

Term
[image]
Definition

Origin:

• TVP’s L1- L5,

• sides of the bodies of T12 – L5 and respective IVDs

 

Insertion:

• lesser trochanter

 

Nerve: ventral rami of L1 – L3

 

Action:

hip flexion

 

Comments:

Principle hip flexor

Term
[image]
Definition

Origin:

• medial ½ of inferior border of 12
th rib

• tips of TVP’s of L/S

 

Insertion:

• iliolumbar ligament

• internal lip of iliac crest

 

Nerve: ventral braches of T12 – L4

 

Action:

Unilaterally: lateral flexion

Bilaterally: extends the spine

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