Abdomen OINA's Flashcards Preview

Anatomy Exam 2 > Abdomen OINA's > Flashcards

Flashcards in Abdomen OINA's Deck (10)
Loading flashcards...
1

Rectus Abdominis

O-Anterior pubis
I-Cartilages of ribs 5-7, Xiphoid process of sternum
N-Intercostal n.
A-Flexes lumbar spine (Active during expiration and maintains abdominal tone

2

Psoas Major

O-Transverse processes, intervertebral discs and bodies of T12-L5
I-Lesser trochanter
N-L1-L3
A-Flexes thigh and trunk (picture cruch with stationary legs)

3

Iliacus

O-Superior 2/3 of Iliac fossa
I-Lesser tochanter of femur
N-Femoral n.
A-Flexes trunk

4

Quadratus Lumborum

O- 12th rib and tips of lumbar transvesre process
I-Iliolumbar ligament and iliac crest
N-T12-L4
A-Flexes trunk laterally and fixes 12th rib

5

Obturator internus

O-Ilium, superior pubic ramus, and ischium
I-Greater trochanter of femur (not relevant)
N-nerve to obturator internus
A-not relevant

6

Piriformis

O-2nd-4th sacral segments
I-Greater trochanter of femur
N-S1-S2
A- not relevant

7

Coccygeus

O-Ischial spine
I-Inferior end of sacrum, coccyx
N-S3/S4/S5 (it can vary)
A-Supports pelvis viscera and flexes coccyx

8

Iliococcygeus (Levator ani)

O-Tendinous arch of obturator fascia
I-Perineal body, coccyx
N-S4, Pudendal n.
A-Supports pelvic viscera

9

Puborectalis (Levator ani)

O-Inferior ramus of pubis
I-Rectum, prostate in males, vagina in females
N-S4, Pudendal nerve
A-Supports pelvic viscera

10

Pubococcygeus (Levator ani)

Inferior ramus of pubis, tendinous arch of obturator internus
I-coccyx
N-S4, Pudendal n.
A-Supports pelvis viscera