Anatomy Oina

Front 1

External Oblique Muscle

Back 1

O: Ribs 5-12
I: Linea Alba, pubic tubercle, anterior iliac crest
N: thoraco-abdominal nerves (T7-T11 spinal nerves), subcostal nerve
A: Compresses/supports abdominal viscera, flexes/rotates trunk

Front 2

Internal Oblique

Back 2

O: Thoracolumbar fascia, anterior 2/3 iliac crest, connective tissue deep to inguinal ligament
I:10-12 ribs, linea alba, pecten pubis
N: Thoraco-abdominal nerves (anterior rami T6-T12), first lumbar nerves
A: Compress/Support abdominal viscera, flexes/rotates trunk

Front 3

Transversus abdominis

Back 3

O: 7-12 costal cartilages, thoracolumbar fascia, iliac crest, connective tissue deep to inguinal ligament
I: Linea alba w/ aponeurosis of Internal oblique, pubic crest, pecten pubis
N: Thoraco-abdominal (Anterior Rami T6-T12), first lumbar nerves
A: Compresses/supports abdominal viscera

Front 4

Rectus Abdominis

Back 4

O: Pubic symphysis and Pubic crest
I: Xiphoid Process, 5-7 costal cartilages
N: Thoraco-abdominal (Anterior Rami T6-T12 spinal)
A: Flexes Trunk, compresses abdominal viscera, stabilizes and controls pelvis tilt

Front 5

Platysma

Back 5

O: Inferior border of mandible, skin, subcutaneous tissue of lower face
I: Fascia of Pec Major and Deltoid
N: Cervical Branch of Facial N (CNVII)
A: Drawn down corners of mouth, draw skin superiorly w/ teeth clenched.

Front 6

Sternocleidomastoid

Back 6

SA: Lateral surface of mastoid, lateral 1/2 superior nuchal line
IA: Sternal Head- Anterior surface of manubrium
Clavicular Head- superior surface of medial 1/3 clavicle
N: Spinal Accessory (CN XI)
A: Unilateral: Ipsilateral flexion and contralateral rotation
Bilateral: Extend atlanto-occipital joint, flex chin to chest, thrust chin forward, elevate manubrium and clavicle w/ deep respiration

Front 7

Suprahydoid Muscles

Back 7

Above Hyoid Bone

secures base of tongue, elevates hyoid, assists w/ swallowing and tone production

Front 8

Infrahyoid Muscles

Back 8

Below hyoid bone

Depresses hyoid w/ swallowing and speaking

Front 9

True Ribs

False Ribs

Floating Ribs

Back 9

True Ribs: 1-7 (direct attachment from vertebrae to sternum)

False Ribs: 8,9,10 (attach to lower costal cartilages)

Floating Ribs: 11, 12

Front 10

Pectoralis Major

Back 10

O: Clavicular- Medial 1/2 clavicle
Sternocostal- Anterior surface sternum, top 6 costal cartilages, aponeurosis of EO
I: Lateral lip intertubercular groove humerus
N: Lateral and Medial pectoral N (C5, C6) and (C7, C8, T1)
A: Adduct and medially rotate humerus, draw scap forward and down,

Front 11

Pectoralis Minor

Back 11

O: Ribs 3-5
I: Medial border and superior surface corticoid process of scap
N: Medical Pectoral N (C8, T1)
A: Stabilize scap, draw it inferior and anterior

Front 12

Subclavius

Back 12

PA: Junction of 1st rib and costal cartilage
DA: Inferior surface of middle 1/3 clavicle
N: N to subclavius (C5-6)
A: Anchors/depresses clavicle

Front 13

Serratus Anterior

Back 13

PA: External surfaces of lateral parts of ribs 1-8
DA: Inferior surface of medial border of scap
N: Long thoracic N (C5-7)
A: Protracts/holds scap against thoracic wall, rotates scap

Front 14

External Intercostals

Back 14

SA: Inferior border of rib above
IA: Superior border of rib below
N: Intercostal N
A: Elevate ribs w/ forced inspiration

Front 15

Internal Intercostals

Back 15

SA: Inferior border of rib above from sternum to angle of rib
IA: Superior border of rib below
N: Intercostal N
A: Avitve w/ forced respirations

Front 16

Axilla Boundaries

Back 16

Apex: Cervico-axillary canal between clavicle and rib 1
Base: Skin/fascia of armpit
Anterior wall: Pec major, minor, and fascia
Posterior Wall: anterior surface scap, subscapularis, teres major, lats
Medial wall: Thoracic wall, serratus anterior
Lateral wall: Intertubercular groove of hum

Front 17

Psoas Minor

Back 17

PA: sides of T12-L1 vert and intervertebral disc
DA: Pectineal Line, iliopuctineal eminence via iliopectineal arch
A: Flexion of pelvis on lumbar spine, pelvic stabilizer

DOES NOT CROSS HIP JOINT...NOT A HIP FLEXOR!!!

Front 18

Psoas Major

Back 18

PA: sides of T12-L5 vert and discs between. Transverse processes of all lumbar
DA: Lesser troch of femur
N: Ventral Rami lumbar (L1,2,3)
A: Hip flexion, stabilize hip joint, external rotation of femur

Front 19

Iliacus

Back 19

PA: Iliac crest, fossa, ala of sacrum and anterior sacroiliac ligament
DA: Tendon of psoas major
N: Femoral (F2,F3)
A: Hip flexion, stabilize hip joint, external femur rotation

Front 20

Tensor Fascia Latae

Back 20

PA: ASIS and Ant part of external lip of iliac crest
DA: Lat condyle of tibia VIA IT Band
N: Superior Gluteal
A: Abduct, internal rotate, flex thigh, help knee extend, steadies trunk on thigh

Front 21

Quadriceps Femoris

Back 21

Rectus Femoris
Vastus Intermedius
Vastus Medialis
Vastus Lateralis

Front 22

Rectus Femoris

Back 22

PA: AIIS and ilium superior to acetabulum
DA: Base patella and tib tuberosity via patella tendon
N: Femoral
A: Extend leg @ knee, Helps iliopsoas flex thigh, stabilizes hip joint

Front 23

Vastus Intermedius

Back 23

PA: Ant and Lateral surfaces of body of femur (deep to RF)
DA: Base patella and tib tuberosity via Patella tendon
N: Femoral
A: Extend leg @ knee, flexes thigh

Front 24

Vastus Medialis

Back 24

PA: Intertrochanteric line & medial lip of linea aspera
DA: base patella and tib tuberosity via patella tendon
N: Femoral
A: Extend knee, flex thigh

Front 25

Vastus Lateralis

Back 25

PA: Greater troch and lateral lip of linea aspera femur
DA: Base patella, tib tuberosity via patella tendon
N: Femoral
A: Extend leg @ knee, flex thigh

Front 26

Sartorius

Back 26

PA: ASIS Inferior notch superiorly
DA: Sup part of medial tibia
N: Femoral
A: Tailor-- flex abduct external rotate at thigh, flex at knee

Front 27

Pectineus

Back 27

PA: Pectin Pubis, sup ramus of pubis
DA: Pectineal line of femur
N: Femoral
A: Adducts and flexes thigh

Front 28

Adductor Longus

Back 28

PA: Body pubis inferior to crest
DA: Middle 1/3 linea aspera
N: Obturator
A: Adduct thigh

Front 29

Gracilis

Back 29

PA: Body and inferior ramus pubis
DA: Super part medial tibia
N: Obturator
A: Adducts thigh, aids in knee flexion and internal rotation

Front 30

Adductor Brevis

Back 30

PA: body and inferior ramus
DA: Pectineal line and proximal linea aspera
N: Obturator
A: Adduct and slight flexion of thigh

Front 31

Adductor Magnus (Adductor Portion)

Back 31

PA: Inf. ramus pubis, ramus ischium
DA: Gluteal tuberosity, linea aspera, medial supracondylar line
N: Obturator
A: Adduct and flex thigh

Front 32

Adductor Magnus (Hamstring Portion)

Back 32

PA: Ischial tuberosity
DA: Adductor tubercle
N: Tibial part of sciatic
A: Extend Thigh