anatomy human heart for Dummies

anatomy human heart for Dummies

Blog Article

cardiac skeleton – (also, skeleton in the heart) strengthened connective tissue Positioned inside the atrioventricular septum; includes 4 rings that surround the openings concerning the atria and ventricles, as well as the openings to your pulmonary trunk and aorta; the point of attachment for the heart valves.

diabetes mellitus – problem because of destruction or dysfunction with the beta cells from the pancreas or cellular resistance to insulin that results in abnormally high blood glucose degrees.

caudate – nucleus deep inside the cerebrum that is an element from the basal nuclei; combined with the putamen, it is an element on the striatum.

coccyx – compact bone Situated at inferior end from the adult vertebral column that is shaped with the fusion of 4 coccygeal vertebrae; also referred to as the “tailbone”.

axillary artery – continuation of the subclavian artery mainly because it penetrates the body wall and enters the axillary region; provides blood into the location in the vicinity of The pinnacle with the humerus (humeral circumflex arteries); virtually all the vessel continues to the brachium and gets to be the brachial artery.

blood hydrostatic strain – pressure blood exerts against the walls of a blood vessel or heart chamber.

On this page the areas of the skeleton are explained concerning their sharing in these features. The Diseases and injuries that could impact the human skeleton are described during the post bone ailment.

chemical synapse – connection in between two neurons, or between a neuron and its target, where by a neurotransmitter diffuses throughout an extremely brief distance.

canaliculi – (singular = canaliculus) channels throughout the bone matrix that dwelling certainly one of an osteocyte’s lots of cytoplasmic extensions that it makes use of to communicate and get nutrients.

dihydroxyvitamin D – active sort of vitamin D essential by the intestinal epithelial cells for that absorption of calcium.

immediate pathway – connections within the basal nuclei through the striatum to your globus pallidus inner section and substantia nigra pars reticulata that disinhibit the thalamus to enhance cortical control of motion.

anterior spinal artery – blood vessel with the read more merged branches of the vertebral arteries that operates together the anterior surface with the spinal wire.

Of such features, assist is considered the most primitive plus the oldest; Furthermore, the axial Element of the skeleton was the main to evolve. The vertebral column, similar to the notochord in decreased organisms, is the leading assist in the trunk.

cytokinesis – last phase in check here mobile division, the place the cytoplasm divides to sort two different daughter cells.