Transversalis fascia

Information about Transversalis fascia

The abdominal inguinal ring. ("Fascia transversalis" visible near center.)
Femoral sheath laid open to show its three compartments.
Latinfascia transversalis
subject #118 418
Dorlands/Elsevier f_03/12355646
The transversalis fascia (or transverse fascia) is a thin aponeurotic membrane which lies between the inner surface of the Transversus and the extraperitoneal fat.

It forms part of the general layer of fascia lining the abdominal parietes, and is directly continuous with the iliac and pelvic fasciae.

In the inguinal region, the transversalis fascia is thick and dense in structure and is joined by fibers from the aponeurosis of the Transversus, but it becomes thin as it ascends to the diaphragm, and blends with the fascia covering the under surface of this muscle.

Behind, it is lost in the fat which covers the posterior surfaces of the kidneys.

Below, it has the following attachments: posteriorly, to the whole length of the iliac crest, between the attachments of the Transversus and Iliacus; between the anterior superior iliac spine and the femoral vessels it is connected to the posterior margin of the inguinal ligament, and is there continuous with the iliac fascia.

Medial to the femoral vessels it is thin and attached to the pubis and pectineal line, behind the inguinal aponeurotic falx, with which it is united; it descends in front of the femoral vessels to form the anterior wall of the femoral sheath.

Beneath the inguinal ligament it is strengthened by a band of fibrous tissue, which is only loosely connected to the ligament, and is specialized as the deep crural arch.

The spermatic cord in the male and the round ligament of the uterus in the female pass through the transversalis fascia at a spot called the abdominal inguinal ring.

This opening is not visible externally, since the transversalis fascia is prolonged on these structures as the infundibuliform fascia.

Additional images


Diagram of sheath of Rectus.

Diagram of a transverse section through the anterior abdomina wall, below the linea semicircularis.

Gray547.png


External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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General anatomy of torso
ThoraxMediastinum (Superior, Anterior, Middle, Posterior) • Superior thoracic aperture • Inferior thoracic aperture • Triangle of auscultation • Intercostal space • Thoracic plane • Thoracic cavity • Thoracic cage
Thoracic diaphragmopenings (Caval opening, Esophageal hiatus, Aortic hiatus, Foramina of Morgagni) • Central tendon • Crus of diaphragm • arcuate ligaments (Lateral, Medial, Median)
AbdomenMcBurney's point • Lumbar triangle • Arcuate line • Linea alba
PerineumUrogenital triangle • Anal triangle • Superficial perineal pouch • Perineal membrane • Deep perineal pouch • Urogenital diaphragm • Superior fascia of the urogenital diaphragm • Ischiorectal fossa - Pudendal canal
FasciaPectoral fascia - Clavipectoral fascia - Transversalis fascia - Deep inguinal ring - Superficial inguinal ring - Fascia of Camper - Fascia of Scarpa - Fascia of Colles
The abdominal inguinal ring (internal or deep abdominal ring, deep inguinal ring, internal inguinal ring) is the entrance to the inguinal canal. The surface anatomy of the point is disputed, but in a recent study[1]
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Latin}}} 
Official status
Official language of: Vatican City
Used for official purposes, but not spoken in everyday speech
Regulated by: Opus Fundatum Latinitas
Roman Catholic Church
Language codes
ISO 639-1: la
ISO 639-2: lat
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Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the UK, USA and elsewhere.
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Aponeuroses (απο, "away" or "of", and νευρον, "sinew") are membranes separating muscles from each other. They have a shiny, whitish-silvery color, and are histologically similar to tendons, but are very sparingly supplied with blood
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The transversus abdominis muscle, also known as the transversalis muscle and transverse abdominal muscle, is a muscle layer of the anterior and lateral abdominal wall which is just deep to (layered below) the internal oblique muscle.
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Not to be confused with Fuchsia.


Fascia (făsh'ē-ə), pl. fas·ci·ae (făsh'ē-ē), adj. fascial (făsh'ē-əl) (from latin: a band) is the soft tissue component of the connective tissue system that
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A 'wall' is a usually solid structure that defines and sometimes protects an area. Most commonly, a wall delineates a building and supports its superstructure, separates space in buildings into rooms, or protects or delineates a space in the open air.
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The fascia of the pelvis may be resolved into:
  • (a) the fascial sheaths of
  • the Obturator internus (Fascia of the Obturator internus)

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diaphragm is a sheet of muscle extending across the bottom of the ribcage. The diaphragm separates the thoracic cavity from the abdominal cavity and performs an important function in respiration.
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The kidneys are organs that filter wastes (such as urea) from the blood and excrete them, along with water, as urine. The medical field that studies the kidneys and diseases of the kidney is called nephrology[1].
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The crest of the ilium (or iliac crest) is convex in its general outline but is sinuously curved, being concave inward in front, concave outward behind.

It is thinner at the center than at the extremities, and ends in the anterior and posterior superior iliac spines.
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The Iliacus is a flat, triangular muscle, which fills the iliac fossa.

It arises from the upper two-thirds of this fossa, and from the inner lip of the iliac crest; behind, from the anterior sacroiliac and the iliolumbar ligaments, and base of the sacrum; in front, it
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The anterior superior iliac spine (ASIS) is an important landmark of surface anatomy. It refers to the anterior extremity of the iliac crest of the pelvis, which provides attachment for the inguinal ligament and the sartorius muscle.
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Femoral vessel may refer to:
  • Femoral artery
  • Femoral vein

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The inguinal ligament is a band running from the pubic tubercle to the anterior superior iliac spine. Its anatomy is very important for operating on hernia patients.

It forms the base of the inguinal canal which is the place from where the inguinal hernia develops.
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The iliac fascia has the following connections:
  • laterally, to the whole length of the inner lip of the iliac crest.
  • medially, to the linea terminalis of the lesser pelvis, where it is continuous with the periosteum.

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Pubis may refer to the following:
  • Pubis (bone)
  • Mons pubis, a padding of fat that protects the pubis bone

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In anatomy, pectineal line (and similar terms) refers to multiple comb-shaped lines. It can refer to:
  • Pectineal line (femur)
  • Pectineal line (pubis)
  • Pectinate line (border between anal canal and rectum)

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The conjoint tendon is a structure formed from the conjoin tendons of the internal oblique and transversus abdominis muscles. It was formerly known as the inguinal aponeurotic falx.
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The femoral sheath (crural sheath) is formed by a prolongation downward, behind the inguinal ligament, of the fasciæ which line the abdomen, the transversalis fascia being continued down in front of the femoral vessels and the iliac fascia behind them.
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deep crural arch (or iliopubic tract).

It is apparently a thickening of the transversalis fascia joined laterally to the center of the lower margin of the inguinal ligament, and arching across the front of the femoral sheath to be inserted by a broad attachment into
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spermatic cord is the name given to the cord-like structure in males formed by the vas deferens and surrounding tissue that run from the abdomen down to each testicle.

Contents of spermatic cord


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The round ligament of the uterus originates at the uterine horns, in the parametrium.

It leaves the pelvis via the deep inguinal ring[2], passes through the inguinal canal and continues on to the labia majora[3]
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The abdominal inguinal ring (internal or deep abdominal ring, deep inguinal ring, internal inguinal ring) is the entrance to the inguinal canal. The surface anatomy of the point is disputed, but in a recent study[1]
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The internal spermatic fascia (infundibuliform fascia) is a thin layer, which loosely invests the cord; it is a continuation downward of the transversalis fascia.

Additional images



The scrotum.

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The State University of New York Health Science Center at Brooklyn, better known as SUNY Downstate Medical Center, is an academic medical center and is the only one of its kind in the Borough of Brooklyn in New York City.
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The State University of New York Health Science Center at Brooklyn, better known as SUNY Downstate Medical Center, is an academic medical center and is the only one of its kind in the Borough of Brooklyn in New York City.
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The inguinal canal is a passage in the anterior (toward the front of the body) abdominal wall which in men conveys the spermatic cord and in women the round ligament. The inguinal canal is larger and more prominent in men.
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University of Michigan, Ann Arbor (U of M, UM or simply Michigan) is a coeducational public research university in the state of Michigan. The university was founded in 1817 in Detroit, about 20 years before the territory of Michigan officially became a state,
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Medical University of Vienna , formerly the faculty of medicine of the University of Vienna, became an independent university on January 1, 2004. The independence of medical schools from the structure of "general" universities was part of a larger reform of the Austrian university
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