System: Reproductive

Left Gonadal Vein

Left Gonadal Vein The structure indicated is the left gonadal vein. The gonadal veins are the veins which drain the testes in men (testicular vein) and the ovaries (ovarian vein) in women.  The left gonadal vein drains into the left renal vein, which then drains into the inferior vena cava. The right gonadal vein however, drains directly into the inferior vena cava. The inferior vena cava is responsible for carrying deoxygenated blood into the right atrium of the heart from the lower part of the body. The inferior vena cava is formed at the point of union of the right …

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left gonadal vein

Seminal Vesicles

Seminal Vesicles The structure indicated is the seminal vesicle. The seminal vesicles are paired accessory glands of the male reproductive system. The seminal vesicles lie lateral to the ductus deferens just beneath the bladder. The excretory duct of the seminal vesicles join the ipsilateral vas deferens to form the ejaculatory ducts. The ejaculatory ducts formed on either side then pass through the prostate to open into the prostatic urethra at the colliculus seminalis. The seminal vesicles contribute a significant volume of the fluid which forms semen. Learn about the basic anatomy and structure of the male reproductive system in this …

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Seminal Vesicle

Suspensory Ligament of Breast (Cooper’s Ligaments)

Suspensory Ligament of Breast (Cooper’s Ligaments) The structure indicated is the suspensory ligament of the breast, also known as Cooper’s ligaments. These ligaments are formed from the connective tissue stroma which surround the ducts and lobules of the mammary gland – in certain areas the connective tissue condenses forming ligaments which support the breast, extending from the dermis of the overlying skin to the deep fascia. These suspensory ligaments support the breast on the chest wall. The suspensory ligaments of Cooper give rise to the dimpling appearance (peau d’orange) that is seen following development of inflammatory carcinoma, as the lymphatic …

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Suspensory Ligament of Breast

Tunica Vaginalis

Tunica Vaginalis The structure indicated is the tunica vaginalis. The tunica vaginalis forms the serous covering of the testis, originating in embryological life from the processus vaginalis of the peritoneum (an embryonic outpouching of the peritoneum). In fetal life, the processus vaginalis precedes the descent of the testis into the scrotum from the abdomen and then closes off. The remaining part then becomes known as the tunica vaginalis which adheres to the surface of the testis and reflects back onto the internal aspect of the scrotum. It therefore consists of a visceral portion and a parietal portion. The visceral portion …

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Tunica Vaginalis

Cervical Canal

Cervical Canal The structure indicated is the cervical canal. The uterus consists of a body and a cervix. The cervix forms the neck of the uterus, and communicates inferiorly with the vagina at the external orifice (external os), and superiorly with the uterine cavity via the internal orifice (internal os). The cervical canal is the narrow passage which runs through the cervix. The inferior part of the cervix bulges into the superior aspect of the vagina and is called the vaginal portion of the cervix (above this is the supravaginal portion). The vaginal part of the cervix is known as …

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Cervical Canal

Pelvic Floor

3D video anatomy tutorial on the structures which make up the pelvic floor.
Pelvic Floor