A Simple Key For human anatomy & physiology Unveiled
A Simple Key For human anatomy & physiology Unveiled
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ascending tract – central anxious process fibres carrying sensory data through the spinal wire or periphery to your Mind.
antithrombin – anticoagulant that inactivates component X and opposes the conversion of prothrombin (aspect II) into thrombin in the frequent pathway.
basilic vein – superficial vein of your arm that arises in the palmar venous arches, intersects Along with the median cubital vein, parallels the ulnar vein, and carries on into your upper arm; along with the brachial vein, it brings about the axillary vein.
biogenic amine – class of neurotransmitters that happen to be enzymatically derived from amino acids but now not have a carboxyl team.
afterload – pressure the ventricles have to produce to successfully pump blood in opposition to the resistance while in the vessels.
blood–testis barrier – limited junctions amongst Sertoli cells that stop bloodborne pathogens from attaining access to later levels of spermatogenesis and stop the potential for an autoimmune reaction to haploid sperm.
dendrite – a single of many branchlike processes that extends from your neuron mobile body and functions as a Get in touch with for incoming alerts (synapses) from other neurons or sensory cells.
cilia – smaller appendage on selected cells shaped by microtubules and modified for movement of components through the cellular floor.
bilirubin – yellowish bile pigment developed when iron is faraway from haem as well as remaining molecule is further damaged down website into squander products and solutions.
autorhythmicity – means of cardiac muscle to initiate its very own electrical impulse that triggers the mechanical contraction that pumps blood at a hard and fast speed devoid of anxious or endocrine control.
anterior cardiac veins – vessels that parallel the smaller cardiac arteries and drain the anterior surface area of the right ventricle; bypass the coronary sinus and drain right into the proper atrium.
astrocyte – star-shaped cell while in the central nervous procedure that regulates ions and uptake and/or breakdown of some neurotransmitters and contributes into the formation of your blood-brain barrier.
Broca’s location – region of your frontal lobe related to the motor instructions needed for speech manufacturing and read more located only within the cerebral hemisphere liable for language production, that is the left side in around ninety five % of the populace.
cerebral aqueduct – relationship with the ventricular technique in between the third and fourth ventricles situated in the midbrain.