Showing results for "inguinal canal"

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Diagram of the components of the membranous labyrinth, highlighting structures relevant to the vestibulocochlear nerve and the inner ear.
The Ear

The Inner Ear

...is continuous with the vestibule. Scala tympani: Located inferiorly to the cochlear duct. It terminates at the round window. Semi-circular Canals There are three semi-circular canals: anterior, lateral and posterior....

Diagram illustrating the arterial supply to the thigh through the femoral artery.
Blood Vessels and Lymphatics of the Lower Limb

Arteries of the Lower Limb

...artery. It is a continuation of the external iliac artery (terminal branch of the abdominal aorta). The external iliac becomes the femoral artery when it crosses under the inguinal ligament...

Diagram of the ectocervix and endocervical canal, illustrating their openings.
The Female Reproductive Tract

The Cervix

...that projects into the vaginal lumen. It is lined by non-keratinised stratified squamous epithelium. The central opening, called the external os, leads into the endocervical canal. Endocervix (endocervical canal) –...

Superior view of the skull base illustrating the foramina and the associated cranial nerves.
Bones of the Head

The Cranial Foramina

...and ascending pharyngeal arteries. By TeachMeSeries Ltd (2025) Fig 3 The bony landmarks and foramina of the posterior cranial fossa. Hypoglossal Canal – CN XII The hypoglossal canal is located...

Muscles of the Abdomen

The Anterolateral Abdominal Wall

...external oblique. It is smaller and thinner in structure, with its fibres running superomedially (perpendicular to the fibres of the external oblique). Attachments: Originates from the inguinal ligament, iliac crest...

Embryology

Development of the Reproductive System

...ligamentous structure formed from mesenchyme. Testes As the body of the fetus grows, the testes become more caudal. They pass through the inguinal canal around the 28th week and reach...

Diagram illustrating the major ligaments of the ovary, including the ligament of ovary and suspensory ligament.
The Female Reproductive Tract

Ligaments of the Female Reproductive Tract

...uterus), and attaches to the labia majora, passing through the inguinal canal. The round ligament can be a source of pain during pregnancy, due to the increased force placed on...

Overview of the pelvic cavity and walls, highlighting the funnel shape of the pelvic floor muscles.
Muscles of the Pelvis

The Pelvic Floor

...the anal canal, and attaches to the pubis on the contralateral side. Actions: Tonic contraction bends the anal canal anteriorly. This creates the anorectal angle which contributes to faecal continence....

Nerves of the Back

The Spinal Cord

...relatively simple anatomical course: The spinal cord arises cranially as a continuation of the medulla oblongata (part of the brainstem). It then travels inferiorly within the vertebral canal, surrounded by...

Diagram illustrating the derivation of the pudendal nerve from the sacral plexus.
Other

The Pudendal Nerve

...through the pudendal canal (also known as Alcock’s canal – a structure formed by the fascia of the obturator internus muscle). Inside the pudendal canal, the nerve divides into branches,...

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