Not known Facts About anatomy human heart
Not known Facts About anatomy human heart
Blog Article
arteriovenous anastomosis – limited vessel connecting an arteriole directly to a venule and bypassing the capillary beds.
cardiac notch – despair inside the medial surface area of the inferior lobe on the still left lung in which the apex on the heart is found.
dense connective tissue – connective tissue suitable which contains several fibres that deliver each elasticity and defense.
motion opportunity – change in voltage of a cell membrane in response to a stimulus that results in transmission of an electrical signal; special to neurons and muscle mass fibres.
articular tubercle – smooth ridge Positioned to the inferior cranium, right away anterior for the mandibular fossa.
adrenal vein – drains the adrenal or suprarenal glands which have been quickly excellent for the kidneys; the right adrenal vein enters the inferior vena cava right plus the remaining adrenal vein enters the still left renal vein.
anterior horn – grey matter of your spinal wire that contains multipolar motor neurons, occasionally referred to as the ventral horn.
counter present multiplier system – consists of the descending and ascending loops of Henle directing forming urine in opposing directions to create a concentration gradient when coupled with variable permeability and sodium pumping.
Then the ATP is broken down (catabolism) in addition to a controlled volume of Electricity is unveiled, which is used by the cell click here to accomplish a certain job.
autorhythmicity – capacity of cardiac muscle mass to initiate its personal electrical impulse that triggers the mechanical contraction that pumps blood at a hard and fast rate without having nervous or endocrine get more info Command.
activation gate – Component of the voltage-gated Na+ channel that opens if the membrane voltage reaches threshold.
bundle of His – (also, atrioventricular bundle) group of specialised myocardial conductile cells that transmit the impulse from your AV node throughout the interventricular septum; type the left and right atrioventricular bundle branches.
corpus albicans – non-practical construction remaining from the ovarian stroma subsequent structural and useful regression of the corpus luteum.
articular cartilage – slim layer of cartilage covering an epiphysis; decreases friction and functions for a shock absorber.