circadian rhythm – inner notion of the every day cycle of light and dim dependant on retinal activity relevant to daylight.
ongoing conduction – gradual propagation of an motion likely together an unmyelinated axon owing to voltage-gated Na+ channels located along your entire size of your cell membrane.
acromial close from the clavicle – lateral end with the clavicle that articulates While using the acromion from the scapula.
anticodon – consecutive sequence of three nucleotides on the tRNA molecule that is certainly complementary to a selected codon on an mRNA molecule.
Encyclopaedia Britannica's editors oversee matter regions by which they've got considerable awareness, regardless of whether from a long time of working experience received by engaged on that content material or via study for a complicated diploma. They generate new material and confirm and edit content received from contributors.
barrier defences – antipathogen defences deriving from the barrier that bodily prevents pathogens from getting into the body to ascertain an infection.
autonomic anxious system (ANS) – practical division with the nervous technique that is certainly accountable for homeostatic reflexes that coordinate Charge of cardiac and clean muscle mass, in addition to glandular tissue.
ampulla – (in the uterine tube) middle portion of the uterine tube in which fertilisation often happens
Cells, for example, Possess a cell membrane (also called the plasma membrane) that retains the intracellular ecosystem—the fluids and organelles—independent within the extracellular environment. Blood vessels retain blood inside a closed circulatory method, and nerves and muscles are wrapped in connective tissue sheaths that separate them from surrounding structures.
During the upper body and abdomen, a variety of interior membranes maintain major organs including the lungs, heart, and kidneys individual from Other people.
ABO website blood team – blood-kind classification according to the existence or absence of A and B carbohydrates about the erythrocyte membrane surface area.
arachnoid trabeculae – filaments between the arachnoid and pia mater within the subarachnoid Area.
axillary vein – key vein in the axillary region; drains the upper limb and results in being the subclavian vein.
coronoid fossa – depression over the anterior surface read more area with the humerus higher than the trochlea; this Area gets the coronoid strategy of the ulna in the event the elbow is maximally flexed.