Subvalvular apparatus

(noun)

The papillary muscles and the chordae tendineae, known as the subvalvular apparatus, hold the valves closed so that they do not prolapse.

Related Terms

Examples of Subvalvular apparatus in the following topics:

  • Operation of Atrioventricular Valves

    • The subvalvular apparatus describes the structures beneath the AV valves that prevent the valves prom prolapsing.
    • The subvalvular apparatus includes the chordae tendineae and the papillary muscles.
    • The subvalvular apparatus has no effect on the opening and closing of the valves, which is caused entirely by the pressure gradient of blood across the valve as blood flows from high pressure to low pressure areas.

  • Classification of Receptors by Stimulus

    • A sensory receptor's adequate stimulus is the stimulus modality for which it possesses the adequate sensory transduction apparatus.

  • Nephron, Parts, and Histology

    • A group of specialized cells known as juxtaglomerular apparatus (JGA) are located around the afferent arteriole where it enters the renal corpuscle.
    • Juxtaglomerular apparatus.

  • Early Pregnancy Tests

    • Radioimmunoassays require sophisticated apparatus and special radiation precautions and are expensive.

  • Regulation of Water Output

    • To review the renin-angiotensin system, low blood volume activates the juxtaglomerular apparatus in a variety of ways, which secretes renin.

  • Regulation of Water Intake

    • The macula densa cells in the walls of the ascending loop of henle of the nephron is another type of osmoreceptor, however it stimulates the juxtaglomerular apparatus (JGA) instead of the hypothalamus.

  • Proprioceptive Sensations

    • The Golgi organ should not be confused with the Golgi apparatus—an organelle in the eukaryotic cell—or the Golgi stain, which is a histologic stain for neuron cell bodies.

  • Intubation During Anesthesia

    • The most widely used route is orotracheal, in which an endotracheal tube is passed through the mouth and vocal apparatus into the trachea.

  • Uterus

    • The mobility is conferred to it by musculo-fibrous apparatus that consists of a suspensory and sustentacular part.

  • Spermatogenesis

    • The Golgi apparatus surrounds the now condensed nucleus, becoming the acrosome.