The Definitive Guide to human anatomy meaning

The Definitive Guide to human anatomy meaning

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angiotensin II – protein produced by the enzymatic action of ACE on inactive angiotensin I; actively results in vasoconstriction and stimulates aldosterone launch from the adrenal cortex.

cuticle – in hair, the outermost layer of keratinocytes originating within the hair matrix, as viewed inside of a cross-segment of your hair bulb.

dense body – sarcoplasmic framework that attaches on the sarcolemma and shortens the muscle as thin filaments slide earlier thick filaments.

Enhancement also features the processes of progress and maintenance, each of which require mobile differentiation.

chordae tendineae – string-like extensions of hard connective tissue that stretch with the flaps with the atrioventricular valves to your papillary muscles.

cardiac output (CO) – quantity of blood pumped by each ventricle throughout a single minute; equals HR multiplied by SV.

calcitonin – peptide hormone made and secreted by the parafollicular cells (C cells) in the thyroid gland that functions to decrease blood calcium degrees.

dorsal – describes the back or direction towards the back of the body; also referred to as posterior.

cerebral cortex – outermost layer of grey matter during the brain, the place acutely aware perception normally takes area.

The connection from the ribs on the breastbone—the sternum—is in all scenarios a secondary read more one, brought about from the comparatively pliable rib (costal) cartilages. The tiny joints among the ribs and the vertebrae allow a gliding movement with the ribs on the vertebrae for the duration of breathing and also other pursuits. The movement is proscribed with the ligamentous attachments among ribs and vertebrae.

amniotic cavity – cavity that opens involving the inner cell mass and the trophoblast; develops into amnion.

corneal reflex – protecting reaction to stimulation of read more the cornea resulting in contraction from the orbicularis oculi muscle causing blinking of the attention.

Betz cells – output cells of the first motor cortex that induce musculature to move by synapses on cranial and spinal motor neurons.

anterior longitudinal ligament – ligament that operates the size of your vertebral column, uniting the anterior aspects of the vertebral bodies.