cone photoreceptor – one of several two types of retinal receptor mobile that's specialised for colour vision from the utilization of three photopigments distributed by way of three separate populations of cells.
cardiac notch – depression inside the medial surface area of the inferior lobe in the still left lung where by the apex of the heart is situated.
coronary arteries – branches with the ascending aorta that provide blood towards the heart; the still left coronary artery feeds the left aspect of your heart, the still left atrium and ventricle, and also the interventricular septum; the best coronary artery feeds the appropriate atrium, portions of the two ventricles, and the heart conduction procedure.
dentin – bone-like tissue instantly deep on the enamel of the crown or cementum of the basis of a tooth.
Defense in the heart, lungs, together with other organs and buildings in the chest creates a difficulty somewhat different from that from the central anxious technique. These organs, the purpose of which entails motion, expansion, and contraction, must have a versatile and elastic protecting covering. Such a covering is furnished by the bony thoracic basket, or rib cage, which types the skeleton in the wall from the upper body, or thorax.
contralateral – term meaning “on the other aspect,” as in axons that website cross here the midline in a very fibre tract.
calyces – cup-like structures acquiring urine from your collecting ducts in which it passes on to the renal pelvis and ureter.
chemical synapse – relationship involving two neurons, or among a neuron and its concentrate on, where a neurotransmitter diffuses throughout an incredibly short length.
aortic sinuses – little pockets in the ascending aorta close to the aortic valve which have been the areas from the baroreceptors (extend receptors) and chemoreceptors that induce a reflex that aids from the regulation of vascular homeostasis.
autorhythmicity – ability of cardiac muscle to initiate its have electrical impulse that triggers the mechanical contraction that pumps blood at a fixed tempo without having nervous or endocrine Command.
corticospinal tract – connection in between the cortex and the spinal wire accountable for creating movement.
cardiac reflexes – number of autonomic reflexes that help the cardiovascular centres to control heart functionality centered on sensory facts from several different visceral sensors.
clavicle – collarbone; elongated bone that articulates Together with the manubrium on the sternum medially plus the acromion with the scapula laterally.
alar plate – developmental location of the spinal twine that offers increase towards the posterior horn of your gray matter.