Muscle Attachments

Question 1

diaphragm

Answer 1

ORIGIN 
-	the lumbar vertebrae 
-	bodies and intervening discs L1 – L3 
-	inner surface of the lower six ribs  and their costal cartilages 
-	posterior surface of the xiphoid 
-	process of the sternum 
INSERTION  
-	central tendon

Question 2

intercostals

Answer 2

ORIGIN
- upper border of rib
INSERTION
- lower border of rib above

Question 3

levator costorum

Answer 3

ORIGIN
- transverse processes of vertebrae C7 – T11
INSERTION
- upper border of rib below

Question 4

subcostals

Answer 4

like innermost intercostals but jumps 1-2 intercostal spaces

Question 5

rectus abdominus

Answer 5

ORIGIN 
-	xiphoid process of sternum
-	costal cartilages of ribs 5, 6 and 7
INSERTION  
-	pubic crest and pubic symphysis

Question 6

external oblique

Answer 6

ORIGIN 
-	outer border lower 8 ribs and costal cartilages 
INSERTION  
-	iliac crest
-	linea alba

Question 7

internal oblique

Answer 7

ORIGIN 
-	lower border lower 4 ribs and costal cartilages 
INSERTION  
-	iliac crest 
-	linea alba

Question 8

transverse abdominus

Answer 8

ORIGIN 
-	inner surface of costal cartilages of lower 6 ribs
INSERTION  
-	iliac crest
-	thoracolumbar fascia 
-	inguinal ligament

Question 9

pyramidalis

Answer 9

ORIGIN
- pubic crest
INSERTION
- linea alba

Question 10

quadratus lumborum

Answer 10

ORIGIN 
-	iliac crest 
-	adjacent iliolumbar ligament 
INSERTION  
-	medial half lower border rib 12

Question 11

psoas major

Answer 11

ORIGIN 
-	bodies and IV discs 
-	transverse process of T12 – L5 
INSERTION  
-	lesser trochanter of femur with iliacus

Question 12

psoas minor

Answer 12

ORIGIN
- bodies and IV discs T12 – L1
INSERTION
- iliopubic eminence

Question 13

iliacus

Answer 13

ORIGIN
- iliac fossa
INSERTION
- lesser trochanter of femur with psoas major

Question 14

serratus posterior superior

Answer 14

ORIGIN
- spinous process of C7 to T3
INSERTION
- angles of ribs 2 – 5

Question 15

serratus posterior inferior

Answer 15

ORIGIN
- spinous process of T11 – L2
INSERTION
- angles of ribs 9 – 12

Question 16

erector spinae

Answer 16

COMMON ORIGIN

• spinous processes and supraspinous ligaments T11 – L5
• transverse processes of lumbar vertebrae
• median sacral crest
• iliac crest

Question 17

iliocostalis lumborum

Answer 17

ORIGIN
- common origin
INSERTION
- attaches to angles of lower ribs

Question 18

iliocostalis throcacis

Answer 18

ORIGIN
- angles of lower ribs
INSERTION
- angles of upper ribs

Question 19

iliocostalis cervicis

Answer 19

ORIGIN
- angles of upper ribs
INSERTION
- transverse processes of lower cervical vertebrae

Question 20

longissimus thoracis

Answer 20

ORIGIN
- common origin
INSERTION
- transverse processes of thoracic vertebrae + adjacent rib

Question 21

longissimus cervicis

Answer 21

ORIGIN
- transverse processes upper thoracic vertebrae
INSERTION
- transverse processes mid cervical vertebrae

Question 22

longissimus capitis

Answer 22

ORIGIN
- transverse processes upper thoracic and mid cervical vertebrae
INSERTION
- base of skull (mastoid process of temporal bone)

Question 23

spinalis thoracis

Answer 23

ORIGIN
- spinous process low thoracic and upper lumbar vertebrae
INSERTION
- spinous process upper thoracic vertebrae

Question 24

spinalis cervicis

Answer 24

ORIGIN
- spinous process upper thoracic vertebrae
INSERTION
- spinous process cervical vertebrae

Question 25

spinalis capitus

Answer 25

- = medial portion of semispinalis capitis

Question 26

multifidus

Answer 26

ORIGIN - transverse processes INSERTION - 2-5 spinous processes above

Question 27

rotatores

Answer 27

ORIGIN - transverse processes INSERTION - 1-2 spinous processes above

Question 28

intertransversarii

Answer 28

ORIGIN - transverse process INSERTION - transverse process

Question 29

interspinales

Answer 29

ORIGIN - spinous process INSERTION - spinous process

Question 30

sternocleidomastoid

Answer 30

``` ORIGIN - mastoid process of temporal bone - superior nuchal lien INSERTION - sternal head (anterior surface manubrium) - clavicular head (medial 1/3 clavicle) ```

Question 31

platysma

Answer 31

ORIGIN - skin and subcutaneous tissue of upper thorax and shoulder INSERTION - mandible and fascia of lower face

Question 32

longus colli

Answer 32

``` ORIGIN - upper thoracic vertebrae INSERTION - bodies to transverse process - transverse process to bodies - bodies to bodies ```

Question 33

longus capitis

Answer 33

ORIGIN - upper cervical transverse process INSERTION - anterior base of skull

Question 34

scalenes anterior

Answer 34

ORIGIN - transverse processes of C3 - 6 INSERTION - rib 1

Question 35

scalenes medius

Answer 35

ORIGIN - transverse processes of C1 – 7 INSERTION - rib 1