Coccygeo-Iliacus

Iliacus externus

Iliolumbar

Hope this helps!

The iliolumbar ligament has been described as the most important ligament for restraining movement at the lumbosacral junction. In addition, it may play an important role in restraining movement in the sacroiliac joints.

The Sartorius muscle is a long thin muscle that runs down the length of the thigh. It is the longest muscle in the human body. Its upper portion forms the lateral border of the femoral triangle. Its origin extends from the anterior superior spine of the ilium, with insertion into the medial border of the tuberosity of the tibia, with nerve supply from the femoral nerve, and whose action flexes the thigh and leg and rotates the leg medially and the thigh laterally.

Also called tailor's muscle.

Posterior Division:

Iliolumbar artery, lateral sacral artery, superior gluteal artery.

Anterior Division:

inferior gluteal artery, middle rectal artery, uterine artery, obturator artery, inferior vesical artery, superior vesical artery, obliterated umbilical artery, internal pudendal artery

GENERALLY known body parts:

intestines

iris

index finger

Assuming that your question in with reference to the human body ... and not the body of an automobile, aircraft, animal, or something else ...

From the SKELETAL SYSTEM of the human body:

iliac crest

iliofemoral ligament

iliolumbar ligament

iliopubic eminence of pelvis

inferior pubic ramus of pelvis

interclavicular ligament

intermediate cuneiform bone

interosseous membrane

intertransverse ligament

ischial tuberosity of pelvis

THE DIGESTIVE SYSTEM:

intestine

ileum

THE MUSCULAR SYSTEM:

iliopsoas muscle

iliotibial tract

inferior extensor retinaculum

inguinal ligament

THE LYMPHATIC SYSTEM:

inguinal nodes

intestinal trunk

THE CARDIOVASCULAR SYSTEM:

iliac artery (common)

iliac artery (external)

iliac artery (internal)

iliac vein (common)

iliac vein (external)

iliac vein (internal)

inferior mesenteric artery

inferior mesenteric vein

inferior vena cava

intermediate antebrachial vein

intestinal arteries

intestinal veins

the nerve cord is enclosed while a invertabrae nerve is opened