5 Simple Techniques For human anatomy and physiology definition

angiotensin II – protein produced by the enzymatic motion of ACE on inactive angiotensin I; actively causes vasoconstriction and stimulates aldosterone launch because of the adrenal cortex.

amino acid – a protein’s monomer; contains a central carbon or alpha carbon to which an amino group, a carboxyl team, a hydrogen, and an R group or aspect chain is connected; the R team differs for all 20 frequent amino acids.

Discussed in this post as part of the axial skeleton is a third subdivision, the visceral, comprising the decreased jaw, some features on the higher jaw, along with the branchial arches, including the hyoid bone.

cervical enlargement – location of the ventral (anterior) horn of your spinal wire that features a larger sized population of motor neurons for the better amount of and finer Charge of muscles in the upper limb.

cerebellum – region of your Grownup brain linked principally for the pons that created through the more info metencephalon (together with the pons) and is essentially accountable for evaluating details in the cerebrum with sensory suggestions within the periphery from the spinal cord.

biaxial joint – form of diarthrosis; a joint that enables for actions in just two planes (two axes).

arrector pili – smooth muscle mass that may be activated in reaction to external stimuli that pull on hair follicles and make the hair “stand up”.

counter present multiplier method – includes the descending and ascending loops of Henle directing forming urine in opposing directions to create a concentration gradient when combined get more info with variable permeability and sodium pumping.

Lively transportation – form of transportation throughout the mobile membrane that requires enter of cellular Strength.

antigen presentation – binding of processed antigen to the protein-binding cleft of An important histocompatibility elaborate molecule.

aortic hiatus – opening during the diaphragm that allows passage with the thoracic aorta into the abdominal area in which it gets to be the abdominal aorta.

carbaminohemoglobin – compound of carbon dioxide and haemoglobin, and among the list of ways in which carbon dioxide is carried while in the blood.

Betz cells – output cells of the principal motor cortex that trigger musculature to maneuver via synapses on cranial and spinal motor neurons.

anterior longitudinal ligament – ligament that runs the length on the vertebral column, uniting the anterior components of the vertebral bodies.

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