anatomy human heart for Dummies

anatomy human heart for Dummies

Blog Article

cardiac skeleton – (also, skeleton from the heart) bolstered connective tissue located throughout the atrioventricular septum; incorporates four rings that encompass the openings in between the atria and ventricles, and the openings on the pulmonary trunk and aorta; the point of attachment to the heart valves.

circulatory shock – also simply just known as shock; a daily life-threatening health care condition through which the circulatory process is unable to supply enough blood flow to supply satisfactory oxygen together with other nutrients for the tissues to maintain cellular metabolism.

cochlear duct – space within the auditory part of the interior ear which contains the organ of Corti and is also adjacent to your scala tympani and scala vestibuli on either facet.

adrenaline – Most important and most potent catecholamine hormone secreted through the adrenal medulla in reaction to brief-phrase anxiety.

cervical vertebrae – seven vertebrae numbered as C1–C7 that can be found from the neck region of your vertebral column.

cuboid – tarsal bone that articulates posteriorly While using the calcaneus bone, medially Using the lateral cuneiform bone, and anteriorly While using the fourth and fifth metatarsal bones.

Bainbridge reflex – (also, termed atrial reflex) autonomic reflex that responds to extend receptors within the atria that deliver impulses for the cardioaccelerator area to improve HR when venous circulation in to the atria boosts.

ampulla – (of the uterine tube) middle portion of the uterine tube in which fertilisation typically happens

aortic sinuses – compact pockets inside the ascending aorta near the aortic valve that are the locations with the baroreceptors (stretch receptors) and chemoreceptors website that bring about a reflex that aids from the regulation of vascular homeostasis.

chorion – membrane that develops within the syncytiotrophoblast, cytotrophoblast, and mesoderm; surrounds the embryo and varieties the foetal part of the placenta through the chorionic villi.

aortic hiatus – opening while in the diaphragm that allows passage with the thoracic aorta in to the abdominal region where it will become the abdominal aorta.

astrocyte – star-shaped cell during the central human anatomy organs anxious process that regulates ions and uptake and/or breakdown of some neurotransmitters and contributes to your development of your blood-Mind barrier.

adductor tubercle – compact, bony bump located to the remarkable facet of the medial epicondyle of the femur.

cytokinesis – last stage in mobile division, where the cytoplasm divides to type two different daughter cells.