The hilus of the kidney.    From Wordnet, Princeton University. 

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.    From Wordnik.com.  [A Practical Physiology] Reference

Notice that all the vessels leave and enter the kidney at the hilus.    From Wordnik.com.  [A Practical Physiology] Reference

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.    From Wordnik.com.  [A Practical Physiology] Reference

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.    From Wordnik.com.  [A Practical Physiology] Reference

(B), or DNcdk5 with aberrant dendrites extending into the hilus (C).    From Wordnik.com.  [PLoS Biology: New Articles] Reference

Surgical exploration showed a tumour arising from the lower anterior hilus of the left kidney.    From Wordnik.com.  [BioMed Central - Latest articles] Reference

It then runs lateralward toward the hilus of the ovary, and ends by joining with the ovarian artery.    From Wordnik.com.  [VI. The Arteries. 5b. The Common Iliac Arteries] Reference

Instead of entering the kidney at the hilus, they usually pierce the upper or lower part of the gland.    From Wordnik.com.  [VI. The Arteries. 5a. 2. The Abdominal Aorta] Reference

The nucleus emboliformis lies immediately to the medial side of the nucleus dentatus, and partly covering its hilus.    From Wordnik.com.  [IX. Neurology. 4a. The Hind-brain or Rhombencephalon] Reference

Importantly, newborn control cells or cdk5-overexpressing cells never extended dendritic processes towards the hilus.    From Wordnik.com.  [PLoS Biology: New Articles] Reference

The nerves passing into the hilus are few in number and are chiefly distributed to the bloodvessels supplying the gland.    From Wordnik.com.  [VIII. The Lymphatic System. 1. Introduction] Reference

Little or no anastomosis occurs between the superficial and deep lymphatics of the lungs, except in the region of the hilus.    From Wordnik.com.  [VIII. The Lymphatic System. 7. The Lymphatic Vessels of the Thorax] Reference

The cords of the central mass run together toward the future hilus and form a network which ultimately becomes the rete testis.    From Wordnik.com.  [XI. Splanchnology. 3. The Urogenital Apparatus] Reference

The lower of the two pulmonary veins, is situated below the bronchus, at the apex or lowest part of the hilus (Figs. 972, 973).    From Wordnik.com.  [XI. Splanchnology. 1e. The Lungs] Reference

These structures are invested by pleura, which, below the hilus and behind the pericardial impression, forms the pulmonary ligament.    From Wordnik.com.  [XI. Splanchnology. 1e. The Lungs] Reference

These are preganglionic fibers of the sympathetic system and terminate in the submaxillary ganglion and small ganglia in the hilus of the submaxillary gland.    From Wordnik.com.  [IX. Neurology. 5g. The Facial Nerve] Reference

The three histological areas used for the cell density evaluation reported above are, respectively, cerebral cortex, pyramidal layer of CA1 and hilus of the dentate gyrus.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

DNcdk5-expressing cells were grouped into cells that extended an apical dendrite toward the ML (DNcdk5) and cells that extended dendritic processes toward the hilus (BasalDNcdk5).    From Wordnik.com.  [PLoS Biology: New Articles] Reference

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.    From Wordnik.com.  [XI. Splanchnology. 1e. The Lungs] Reference

—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.    From Wordnik.com.  [XI. Splanchnology. 1e. The Lungs] Reference

It can then be traced around the surface of the spleen to the front of the hilus, and thence to the cardiac end of the greater curvature of the stomach as the anterior layer of the gastrolienal ligament.    From Wordnik.com.  [XI. Splanchnology. 2e. The Abdomen] Reference

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.    From Wordnik.com.  [XI. Splanchnology. 1e. The Lungs] Reference

Starting from here, the bursa may be traced across the aorta and over the medial part of the front of the left kidney and diaphragm to the hilus of the spleen as the anterior layer of the phrenicolienal ligament.    From Wordnik.com.  [XI. Splanchnology. 2e. The Abdomen] Reference

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.    From Wordnik.com.  [XI. Splanchnology. 1e. The Lungs] Reference

It consists of an irregularly folded lamina, of a grayish-yellow color, containing white fibers, and presenting on its antero-medial aspect an opening, the hilus, from which most of the fibers of the superior peduncle emerge (page 792).    From Wordnik.com.  [IX. Neurology. 4a. The Hind-brain or Rhombencephalon] Reference

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.    From Wordnik.com.  [XI. Splanchnology. 1e. The Lungs] Reference

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.    From Wordnik.com.  [VI. The Arteries. 5a. 2. The Abdominal Aorta] Reference

DNcdk5-expressing cells that were located in the hilus, similar to dendritic spines in the ML extending from control cells and Figure S3).    From Wordnik.com.  [PLoS Biology: New Articles] Reference

DNcdk5, and thus inhibiting cdk5 kinase activity, lost the polarity typical of dentate granule cells, and extended dendrites along the GCL or even towards the hilus when analyzed 4 wk after viral transduction (.    From Wordnik.com.  [PLoS Biology: New Articles] Reference

Do not cut directly through the hilus.    From Wordnik.com.  [A Practical Physiology] Reference

Bean-shaped with hilus, cortex and medulla.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

18 has no expression in pyramidal cells of CA3 but does express at high level in the hilus.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Expressing newborn granule cells extending into the hilus were decorated with dendritic spines (.    From Wordnik.com.  [PLoS Biology: New Articles] Reference

HL, hilus.    From Wordnik.com.  [PLoS Biology: New Articles] Reference

A) hilus to urethra bladder.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference