The 2-Minute Rule for human anatomy and physiology

baroreceptor reflex – autonomic reflex wherein the cardiac centres keep track of signals within the baroreceptor stretch receptors and regulate heart perform depending on blood stream.

capsaicin – molecule that activates nociceptors by interacting having a temperature-delicate ion channel and is The premise for “scorching” sensations in spicy foodstuff.

dense body – sarcoplasmic construction that attaches to the sarcolemma and shortens the muscle mass as slim filaments slide earlier thick filaments.

adrenaline – primary and many potent catecholamine hormone secreted because of the adrenal medulla in response to short-phrase pressure.

common pathway – closing coagulation pathway activated both by the intrinsic or maybe the extrinsic pathway, and ending within the development of the blood clot.

blood–testis barrier – tight junctions concerning Sertoli cells that avert bloodborne pathogens from getting usage of later on levels of spermatogenesis and stop the possible for an autoimmune response to haploid sperm.

capitate – in the lateral facet, the 3rd of your 4 distal carpal bones; articulates With all the scaphoid and lunate proximally, the trapezoid laterally, the hamate medially, and mainly Together with the third metacarpal distally.

ampulla – (from the uterine tube) website Center portion of the uterine tube through which fertilisation frequently happens

atrial natriuretic peptide (ANP) – peptide hormone produced by the walls of your atria in response to large blood pressure, blood quantity, or blood sodium that minimizes the reabsorption of sodium and h2o during the kidneys and promotes vasodilation.

autonomic tone – contractile point out all through resting cardiac exercise produced by moderate sympathetic and parasympathetic stimulation.

axon section – single stretch in the axon insulated by myelin and bounded by nodes of Ranvier at possibly conclude (aside from the main, and that is once the initial phase, and the final, which can be accompanied by the axon terminal).

arachnoid trabeculae – filaments between the arachnoid and pia mater inside the subarachnoid Room.

clavicle – collarbone; here elongated bone that articulates With all the manubrium of the sternum medially plus the acromion in the scapula laterally.

Your body is coordinating the motion of overall muscle groups to enable you to shift air into and out of the lungs, to drive blood in the course of your body, and to propel the foods you may have eaten through your digestive tract. Consciously, of course, you contract your skeletal muscles to maneuver the bones of the skeleton to acquire from just one area to a different (since the runners are carrying out in Figure one.seven), and to perform most of the things to do of your respective way of life.