The nerve to piriformis is a nerve that innervates the piriformis muscle.
List of articles in "Anatomical Structure" category - Page 190
Circular folds
The circular folds (valves of Kerckring) (also plicae circulares / valvulae conniventes) are large valvular flaps projecting into the lumen of the bowel.
Intervenous tubercle
The intervenous tubercle (tubercle of Lower) is a small projection on the posterior wall of the right atrium above the fossa ovalis. It is distinct in the hearts of quadrupeds […]
Limbus of fossa ovalis
The limbus of fossa ovalis (anulus ovalis) is the prominent oval margin of the fossa ovalis. It is in the right atrium.It is most distinct above and at the sides […]
Left atrial appendage
The left atrial appendage (LAA) (also known as the left auricular appendix auricula or left auricle) is a muscular pouch connected to the left atrium of the heart.It has a […]
Right atrial appendage
The right atrial appendage (RAA) (also known as the right auricular appendix right auricula or right auricle) is a small conical muscular pouch attached to the right atrium of the […]
Opening of the pulmonary artery
The opening of the pulmonary artery (or trunk) is circular in form and situated at the summit of the conus arteriosus close to the ventricular septum. It is placed above […]
Right atrioventricular orifice
The right atrioventricular orifice (right atrioventricular opening) is the large oval aperture of communication between the right atrium and ventricle.Situated at the base of the atrium it measures about 4 […]
Openings of smallest cardiac veins
The openings of smallest cardiac veins (foramina venarum minimarum or foramina Thebesii) are located in the heart. Here the smallest cardiac veins returns blood into the heart chambers from the […]
Aortic opening
The aortic opening (aortic orifice) is a circular aperture in front and to the right of the atrioventricular from which it is separated by the anterior cusp of the bicuspid […]