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Inguinal canal
Inguinal canal
Published: 2014/03/07
Channel: Access Anatomy
Inguinal canal & Spermatic cord
Inguinal canal & Spermatic cord
Published: 2015/06/06
Channel: The Noted Anatomist
Inguinal Canal - Anatomy Lecture for Medical Students - USMLE Step1
Inguinal Canal - Anatomy Lecture for Medical Students - USMLE Step1
Published: 2016/03/05
Channel: PETROMed Lectures
Innovative Anatomy - Inguinal Canal (iClinical®)
Innovative Anatomy - Inguinal Canal (iClinical®)
Published: 2014/08/01
Channel: Ron Grimley Undergraduate Centre - RGUC
Anatomy of the Groin  Inguinal region
Anatomy of the Groin Inguinal region
Published: 2012/04/28
Channel: aras murad
Inguinal canal by Dr.(prof) A.K.Singh
Inguinal canal by Dr.(prof) A.K.Singh
Published: 2017/01/02
Channel: DR. A.K. SINGH
Anatomy of the inguinal region, simplified
Anatomy of the inguinal region, simplified
Published: 2012/04/21
Channel: Human Anatomy Education
3D Tour of the Inguinal Canal
3D Tour of the Inguinal Canal
Published: 2017/06/18
Channel: About Medicine
Muscles of the Anterior Abdominal Wall - 3D Anatomy Tutorial
Muscles of the Anterior Abdominal Wall - 3D Anatomy Tutorial
Published: 2012/08/08
Channel: AnatomyZone
Borders of the Inguinal Canal
Borders of the Inguinal Canal
Published: 2015/02/16
Channel: Philip Rivera
Inguinal canal 2(content and mechanism)
Inguinal canal 2(content and mechanism)
Published: 2017/03/17
Channel: DIMPLE GANATRA
Introduction to Direct and Indirect Inguinal Hernia
Introduction to Direct and Indirect Inguinal Hernia
Published: 2016/05/01
Channel: Armando Hasudungan
inguinal canal
inguinal canal
Published: 2013/04/12
Channel: مصطفي سليم
Inguinal canal video
Inguinal canal video
Published: 2011/11/15
Channel: Khushbu Taori
Development of inguinal Canal
Development of inguinal Canal
Published: 2017/05/31
Channel: video Junction
Dermatomes and Inguinal Canal – Anatomy | Medical Education Videos
Dermatomes and Inguinal Canal – Anatomy | Medical Education Videos
Published: 2015/07/17
Channel: Lecturio Medical Videos
Inguinal canal 1
Inguinal canal 1
Published: 2017/03/16
Channel: DIMPLE GANATRA
Inguinal canal
Inguinal canal
Published: 2017/08/14
Channel: Sam Webster
Inguinal Canal
Inguinal Canal
Published: 2014/02/07
Channel: Padam Panchal
Anatomy of Inguinal Canal and Inguinal Hernia
Anatomy of Inguinal Canal and Inguinal Hernia
Published: 2015/02/17
Channel: Dr Praveen Choudhary
How to perform inguinal ring test ?
How to perform inguinal ring test ?
Published: 2013/08/26
Channel: Ghaleb Mihyar
Male Reproductive Model - Upright Model - Scrotum & Inguinal Canal.avi
Male Reproductive Model - Upright Model - Scrotum & Inguinal Canal.avi
Published: 2008/12/08
Channel: drbobrd
Inguinal canal
Inguinal canal
Published: 2016/04/06
Channel: Soton Anatomy Hub
Inguinal region: dissection of a female body
Inguinal region: dissection of a female body
Published: 2011/04/19
Channel: Human Anatomy Education
Examination for Hernias of the Inguinal Region
Examination for Hernias of the Inguinal Region
Published: 2016/01/10
Channel: Dl Company TV
11 Canal Inguinal
11 Canal Inguinal
Published: 2013/05/10
Channel: BREGMAR
ANATOMY LECTURES , INGUINAL CANAL
ANATOMY LECTURES , INGUINAL CANAL
Published: 2017/02/01
Channel: Rajeev Ranjan Gupta , AIIMS , New Delhi
INGUINAL CANAL - BOUNDARIES
INGUINAL CANAL - BOUNDARIES
Published: 2015/05/12
Channel: viren kariya
8. Abdomen - Inguinal canal الدكتور أحمد كمال.cxt
8. Abdomen - Inguinal canal الدكتور أحمد كمال.cxt
Published: 2010/08/25
Channel: Jameel Hijazeen
Hernias, Inguinal Canal and Contents Made Simple!
Hernias, Inguinal Canal and Contents Made Simple!
Published: 2013/06/10
Channel: Simple Science Answers
Anatomy - Abdomen & Pelvis (Inguinal ligament)
Anatomy - Abdomen & Pelvis (Inguinal ligament)
Published: 2016/04/23
Channel: Dr. Bhatia Medical Coaching Institute (DBMCI)
38. Inguinal canal
38. Inguinal canal
Published: 2011/07/28
Channel: Bekkamedisin
Inguinal canal dissection
Inguinal canal dissection
Published: 2017/04/24
Channel: anatomy dissections
Inguinal canal
Inguinal canal
Published: 2016/11/16
Channel: TrickyAnatomy
Inguinal Canal
Inguinal Canal
Published: 2012/11/04
Channel: DrKrishna Garg
Anatomy of the Inguinal Area & Thigh, Part 1
Anatomy of the Inguinal Area & Thigh, Part 1
Published: 2015/02/26
Channel: Stanford Anatomy
amaizing description of inguinal canal anatomy
amaizing description of inguinal canal anatomy
Published: 2016/12/02
Channel: hiranmoy mondal
Inguinal Canal
Inguinal Canal
Published: 2012/04/28
Channel: aras murad
Inguinal Stretch - Patient
Inguinal Stretch - Patient
Published: 2014/08/05
Channel: Price Chiropractic
Peritoneal & Inguinal-Human Anatomy Dissection
Peritoneal & Inguinal-Human Anatomy Dissection
Published: 2012/08/25
Channel: Christine Jackson
Inguinal Canal - Abdomen (Part 14/16) [BDC Anatomy]
Inguinal Canal - Abdomen (Part 14/16) [BDC Anatomy]
Published: 2014/03/17
Channel: Dr. Prodigious
Inguinal Canal
Inguinal Canal
Published: 2014/07/13
Channel: Angela Zanotti
Pain Medicine - Ilioinguinal Nerve, Iliohypogastric Nerve, Inguinal Canal, TAP
Pain Medicine - Ilioinguinal Nerve, Iliohypogastric Nerve, Inguinal Canal, TAP
Published: 2015/03/28
Channel: Regional Anesthesia
Anatomy of the INGUINAL CANAL & hernias
Anatomy of the INGUINAL CANAL & hernias
Published: 2017/08/11
Channel: Anatomy with Shen
Sample Lecture - Inguinal Canal
Sample Lecture - Inguinal Canal
Published: 2014/11/04
Channel: SmarTeach
Inguinal Canal Block
Inguinal Canal Block
Published: 2017/01/07
Channel: Regional Anesthesia
Inguinal canal dissection
Inguinal canal dissection
Published: 2015/10/19
Channel: Oluwole Ogunranti
Laparoscopic  Inguinal Anatomy - 1
Laparoscopic Inguinal Anatomy - 1
Published: 2016/10/24
Channel: Sunrise Hospital
Surgical anatomy of inguinal canal
Surgical anatomy of inguinal canal
Published: 2012/07/27
Channel: abraham niby francis
anatomy of inguinal canal
anatomy of inguinal canal
Published: 2011/02/17
Channel: Pushkar Dhir
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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Inguinal canal
Gray1227.png
Front of abdomen, showing surface markings for arteries and inguinal canal. (Inguinal canal is tube at lower left.)
Gray1143.png
The scrotum. On the left side the cavity of the tunica vaginalis has been opened; on the right side only the layers superficial to the Cremaster have been removed. (Right inguinal canal visible at upper left.)
Details
Identifiers
Latin canalis inguinalis
MeSH A01.047.412
TA A04.5.01.026
FMA 19928
Anatomical terminology

The inguinal canals are the two passages in the anterior abdominal wall which in men convey the spermatic cords and in women the round ligament of uterus. The inguinal canals are larger and more prominent in men. There is one inguinal canal on each side of the midline.

Structure[edit]

The inguinal canals are situated just above the medial half of the inguinal ligament. In both sexes the canals transmit the ilioinguinal nerves. The canals are approximately 3.75 to 4 cm long.[citation needed], angled anteroinferiorly and medially.

A first-order approximation is to visualize each canal as a cylinder.[1]

Walls[edit]

To help define the boundaries, these canals are often further approximated as boxes with six sides. Not including the two rings, the remaining four sides are usually called the "anterior wall", "inferior wall ("floor")", "superior wall ("roof")", and "posterior wall".[2] These consist of the following:

superior wall (roof):
Medial crus of aponeurosis of external oblique
Musculoaponeurotic arches of internal oblique and transverse abdominal
Transversalis fascia
anterior wall:
aponeurosis of external oblique
fleshy part of internal oblique (lateral third of canal only)[3]
superficial inguinal ring (medial third of canal only)[4]
(inguinal canal) posterior wall:
transversalis fascia
conjoint tendon (Inguinal falx,reflected part of inguinal ligament, medial third of canal only)[4]
deep inguinal ring (lateral third of canal only)[4]
inferior wall (floor):
inguinal ligament
lacunar ligament (medial third of canal only)[4]
iliopubic tract (lateral third of canal only)[3]

Development[edit]

During development each gonad (ovary or testicle) descend from their starting point on the posterior abdominal wall (para-aortically) from the labioscrotal swellings near the kidneys, down the abdomen, and through the inguinal canals to reach the scrotum. Each testicle then descends through the abdominal wall into the scrotum, behind the processus vaginalis (which later obliterates). Thus lymphatic spread from a testicular tumour is to the para-aortic nodes first, and not the inguinal nodes.

Function[edit]

The structures which pass through the canals differ between males and females:

The classic description of the contents of the spermatic cords in the male are:

3 arteries: artery to vas deferens (or ductus deferens), testicular artery, cremasteric artery;

3 fascial layers: external spermatic, cremasteric, and internal spermatic fascia;

3 other structures: pampiniform plexus, vas deferens (ductus deferens), testicular lymphatics;

3 nerves: genital branch of the genitofemoral nerve (L1/2), sympathetic and visceral afferent fibres, ilioinguinal nerve (N.B. outside spermatic cord but travels next to it)

Note that the ilioinguinal nerve passes through the superficial ring to descend into the scrotum, but does not formally run through the canal.

Clinical significance[edit]

Abdominal contents (potentially including intestine) can be abnormally displaced from the abdominal cavity. Where these contents exit through the inguinal canal the condition is known as an indirect or oblique inguinal hernia. This can also cause infertility. This condition is far more common in men than in women, owing to the inguinal canal's small size in women.

A hernia that exits the abdominal cavity directly through the deep layers of the abdominal wall, thereby bypassing the inguinal canal, is known as a direct inguinal hernia.

Additional images[edit]

See also[edit]

References[edit]

  1. ^ "Gross Anatomy Image". Retrieved 2007-11-20. 
  2. ^ Adam Mitchell; Drake, Richard; Gray, Henry David; Wayne Vogl (2005). Gray's anatomy for students. Elsevier/Churchill Livingstone. p. 260. ISBN 0-443-06612-4. 
  3. ^ a b Dalley, Arthur F.; Moore, Keith L. (2006). Clinically oriented anatomy. Hagerstown, MD: Lippincott Williams & Wilkins. p. 217. ISBN 0-7817-3639-0. 
  4. ^ a b c d Arthur F., II Dalley; Anne M. R. Agur. Grant's Atlas of Anatomy. Hagerstown, MD: Lippincott Williams & Wilkins. p. 102. ISBN 0-7817-4255-2. 
  5. ^ "Anatomy Tables - Inguinal Region". Retrieved 2007-11-20. 

^ Adam Mitchell; Drake, Richard; Gray, Henry David; Wayne Vogl (2010). Gray's anatomy for students. Elsevier/Churchill Livingstone. pp. 286. ISBN 0-443-06612-4.

External links[edit]

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