IN A SYMPOSIUM devoted to angiotensin, it is appropriate to consider briefly the juxtaglomerular apparatus. Angiotensin makes its appearance in the body as a direct result of the proteolytic action of renin, and there is considerable evidence to support the hypothesis that all the renin in a kidney comes from the juxtaalomerular apparatus. Before reviewing this evidence, the anatomy of the juxt...

The writer, in sputtering a large number of mirrors, has found that the apparatus and methods to be described have several advantages, particularly where very large and perfect mirrors are desired. The accompanying diagram will be self explanatory, and the dimensions given have been found convenient for mirrors up to 10 cm diameter. The apparatus has been designed to avoid the use of any grease...

This review deals with the functional anatomy of the six components of the mitral apparatus, namely, the left atrial wall, annulus, leaflets, chordae tendineae, papillary muscles, and left ventricular wall. Each component is considered individually, in the context of the apparatus as a whole, in relation to the mode of closure of the normal mitral valve, and in the light of many acquired and co...

In the apparatus about to be described I make no claim to originality in design. It has been my endeavour to find the simplest form of anaesthetic apparatus which could, with slight adaptation, be used with reliability for intra-tracheal, intra-pharyngeal, or intra-nasal induction using ether with air or oxygen. This apparatus has been in constant use for the past 33r years in certain Indian mi...

This department welcomes brief communications reporting new demonstrations, laboratory equipment, techniques, or materials of interest to teachers of physics. Notes on new applications of older apparatus, measurements supplementing data supplied by manufacturers, information which, while not new, is not generally known, procurement information, and news about apparatus under development may be ...

This department welcomes brief communications reporting new demonstrations, laboratory equipment, techniques, or materials of interest to teachers of physics. Notes on new applications of older apparatus, measurements supplementing data supplied by manufacturers, information which, while not new, is not generally known, procurement information, and news about apparatus under development may be ...

The lacrimal apparatus The lacrimal system consists of: 1Secretory portion: Comprises the following: aThe lacrimal gland: Which is divided into palpebral (Aqueoussecretion) (near the temporal aspect of upper eyelid) and orbital (near the eyeball) lobes, and it is situated in the upper temporal angle of the orbit. bAccessory lacrimal glands: glands of Krause and glands of wolfring. cMeibomian gl...

IN A SYMPOSIUM devoted to angiotensin, it is appropriate to consider briefly the juxtaglomerular apparatus. Angiotensin makes its appearance in the body as a direct result of the proteolytic action of renin, and there is considerable evidence to support the hypothesis that all the renin in a kidney comes from the juxtaalomerular apparatus. Before reviewing this evidence, the anatomy of the juxt...

IN A SYMPOSIUM devoted to angiotensin, it is appropriate to consider briefly the juxtaglomerular apparatus. Angiotensin makes its appearance in the body as a direct result of the proteolytic action of renin, and there is considerable evidence to support the hypothesis that all the renin in a kidney comes from the juxtaalomerular apparatus. Before reviewing this evidence, the anatomy of the juxt...