Hilus

The hollow or concave side of the kidneys is turned inwards, and the deep fissure of this side, known as the hilus, widens out to form the pelvis. ❋ Albert F. Blaisdell (N/A)

Notice that all the vessels leave and enter the kidney at the hilus. ❋ Albert F. Blaisdell (N/A)

Observe that its shape is something like that of a bean, and note that the concave part (hilus), when in its normal position, is turned towards the backbone. ❋ Albert F. Blaisdell (N/A)

Through the hilus the renal artery passes into each kidney, and from each hilus passes outwards the renal vein, a branch of the inferior vena cava. ❋ Albert F. Blaisdell (N/A)

These are preganglionic fibers of the sympathetic system and terminate in the submaxillary ganglion and small ganglia in the hilus of the submaxillary gland. ❋ Unknown (1918)

It begins in the previous fissure near the posterior border of the lung, and, running horizontally forward, cuts the anterior border on a level with the sternal end of the fourth costal cartilage; on the mediastinal surface it may be traced backward to the hilus. ❋ Unknown (1918)

It then extends downward and forward over the costal surface, and reaches the lower border a little behind its anterior extremity, and its further course can be followed upward and backward across the mediastinal surface as far as the lower part of the hilus. ❋ Unknown (1918)

On the right lung (Fig. 972), immediately above the hilus, is an arched furrow which accommodates the azygos vein; while running upward, and then arching lateralward some little distance below the apex, is a wide groove for the superior vena cava and right innominate vein; behind this, and nearer the apex, is a furrow for the innominate artery. ❋ Unknown (1918)

Instead of entering the kidney at the hilus, they usually pierce the upper or lower part of the gland. ❋ Unknown (1918)

—The left lung is divided into two lobes, an upper and a lower, by an interlobular fissure, which extends from the costal to the mediastinal surface of the lung both above and below the hilus. ❋ Unknown (1918)

These structures are invested by pleura, which, below the hilus and behind the pericardial impression, forms the pulmonary ligament. ❋ Unknown (1918)

After freely communicating with other branches they form large vessels, which ultimately come into relation with the arteries and bronchial tubes, and accompany them to the hilus of the organ. ❋ Unknown (1918)

Little or no anastomosis occurs between the superficial and deep lymphatics of the lungs, except in the region of the hilus. ❋ Unknown (1918)

On the left lung (Fig. 973), immediately above the hilus, is a well-marked curved furrow produced by the aortic arch, and running upward from this toward the apex is a groove accommodating the left subclavian artery; a slight impression in front of the latter and close to the margin of the lung lodges the left innominate vein. ❋ Unknown (1918)

Before reaching the hilus of the kidney, each artery divides into four or five branches; the greater number of these lie between the renal vein and ureter, the vein being in front, the ureter behind, but one or more branches are usually situated behind the ureter. ❋ Unknown (1918)

Behind the hilus and the attachment of the pulmonary ligament is a vertical groove for the esophagus; this groove becomes less distinct below, owing to the inclination of the lower part of the esophagus to the left of the middle line. ❋ Unknown (1918)

Behind the hilus and pulmonary ligament is a vertical furrow produced by the descending aorta, and in front of this, near the base of the lung, the lower part of the esophagus causes a shallow impression. ❋ Unknown (1918)

As seen on the surface, this fissure begins on the mediastinal surface of the lung at the upper and posterior part of the hilus, and runs backward and upward to the posterior border, which it crosses at a point about 6 cm. below the apex. ❋ Unknown (1918)

The superficial efferents turn around the borders of the lungs and the margins of their fissures, and converge to end in some glands situated at the hilus; the deep efferents are conducted to the hilus along the pulmonary vessels and bronchi, and end in the tracheobronchial glands. ❋ Unknown (1918)

The lower of the two pulmonary veins, is situated below the bronchus, at the apex or lowest part of the hilus (Figs. 972, 973). ❋ Unknown (1918)