Loose connective tissue is found in the submucosa of the digestive tract, subcutaneous tissue of certain regions, and interior of organs where it binds lobes and lobules. It also occurs in the choroid and sclera of the eye where pigment cells are present. Dense irregular connective tissue is located in the reticular dermis layer, sheaths of muscles and nerves, adventitia of large blood vessels, and capsules of glands and organs. Regular connective tissues compose ligaments, tendons, and aponeurosis and contain collagen, with some ligaments also containing elastin like the ligamenta flava and vocal cords.

1. Dr. Sandeep Madaan
MBBS, MD(Anatomy)

2. Loose (areolar) connective tissue
Submucosa in the digestive tract and other viscera lined by mucosae,
subcutaneous tissue in regions devoid of fat (e.g. eyelids, penis, scrotum and
labia),
supporting layer (lamina propria) of mucosal epithelia
supporting layer of vascular endothelia,
in the interior of organs, where it binds together the lobes & lobules of glands
A variant of loose connective tissue occurs in the choroid and the sclera of
the eye, where large numbers of pigment cells (melanocytes) are also
present.
Dense irregular connective tissue
Reticular layer of the dermis
Superficial connective tissue sheaths of muscle and nerves
Adventitia of large blood vessels
Capsules of various glands and organs (e.g. testis, sclera of the eye,
periostea and perichondria).
Regular connective tissues
ligaments, tendons or Aponeurosis
Although regular connective tissue is predominantly collagenous, some ligaments contain
significant amounts of elastin, e.g. the ligamenta flava of the vertebral laminae and the vocal