The Single Best Strategy To Use For human anatomy and physiology definition

The Single Best Strategy To Use For human anatomy and physiology definition

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cellulose – polysaccharide that comprises the plants’ mobile wall; presents structural guidance to your mobile.

cuticle – in hair, the outermost layer of keratinocytes originating with the hair matrix, as noticed in a very cross-area with the hair bulb.

dense connective tissue – connective tissue correct that contains a lot of fibres that provide the two elasticity and security.

costoclavicular ligament – band of connective tissue that unites the medial clavicle with the primary rib.

abdominal aorta – percentage of the aorta inferior to your aortic hiatus and remarkable for the frequent iliac arteries.

atrial reflex – (also, known as Bainbridge reflex) autonomic reflex that responds to stretch receptors in the atria that mail impulses to the cardioaccelerator spot to increase HR when venous move in the atria will increase.

Physiology may be the examine of how the human body functions. It describes the chemistry and physics at the rear of fundamental body features, from how molecules behave in cells to how devices of organs do the job jointly.

aponeurosis – wide, tendon-like sheet of connective tissue that attaches a skeletal muscle mass to a different skeletal muscle mass or into a bone.

aortic sinuses – small pockets during the ascending aorta close to the aortic valve which might be the places from the baroreceptors (extend receptors) and chemoreceptors that bring about a reflex that aids inside the regulation of vascular homeostasis.

corticobulbar tract – relationship in between the cortex and the Mind stem liable for producing motion.

axon segment – single extend on the axon insulated by myelin and bounded by nodes click here of Ranvier at either end (aside from the initial, which can be after the First segment, and the final, which can be accompanied by the axon terminal).

capillary – smallest of blood vessels wherever Actual physical exchange occurs among the blood and tissue cells surrounded by interstitial fluid.

Betz cells – output cells of the principal motor cortex that result in musculature to maneuver by synapses on cranial website and spinal motor neurons.

complete refractory period of time – time for the duration of an action period of time when One more action likely cannot be produced as the voltage-gated Na+ channel is inactivated.