anatomy human heart for Dummies

circadian rhythm – inside notion on the everyday cycle of sunshine and dark according to retinal exercise connected to daylight.

bicuspid valve – (also, mitral valve or still left atrioventricular valve) valve located involving the remaining atrium and ventricle; includes two flaps of tissue.

denaturation – loss of form in the protein as a result of modifications in temperature, pH, or chemical exposure.

adrenaline – Principal and many potent catecholamine hormone secreted because of the adrenal medulla in response to limited-time period stress.

aorta – most significant artery inside the body, originating from your remaining ventricle and descending to the abdominal area the place it bifurcates into the typical iliac arteries at the extent of your fourth lumbar vertebra; arteries originating in the aorta distribute blood to practically all tissues of your body.

cauda equina – bundle of spinal nerve roots that descend through the decrease spinal wire beneath the very first lumbar vertebra here and lie throughout the vertebral cavity; has the appearance of the horse’s tail.

Bainbridge reflex – (also, referred to as atrial reflex) autonomic reflex that responds to extend receptors during the atria that send impulses towards the cardioaccelerator spot to increase HR when venous circulation into the atria will increase.

anterior border with the tibia – narrow, anterior margin with the tibia that extends inferiorly through the tibial tuberosity.

aortic arch – arc that connects the ascending aorta to your descending aorta; finishes in the intervertebral disk involving the fourth and fifth thoracic vertebrae.

brachial vein – deeper vein on the arm that forms within the radial and ulnar veins inside the decrease arm; causes the axillary vein.

angle on the rib – percentage of rib with greatest curvature; collectively, the rib angles variety the most posterior extent on the thoracic cage.

cardiac reflexes – number of autonomic reflexes that enable the cardiovascular centres to manage heart purpose dependent on sensory facts from a variety of visceral sensors.

deep femoral vein – drains blood from your further parts on the thigh and results in the femoral vein.

atrioventricular septum – website cardiac septum Found concerning the atria and ventricles; atrioventricular valves are located in this article.

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