ascending tract – central anxious technique fibres carrying sensory details in the spinal twine or periphery into the brain.
brain stem – location in the Grownup brain that features the midbrain, pons, and medulla oblongata and develops through the mesencephalon, metencephalon, and myelencephalon of the embryonic Mind.
dense body – sarcoplasmic structure that attaches towards the sarcolemma and shortens the muscle mass as thin filaments slide past thick filaments.
anticodon – consecutive sequence of 3 nucleotides on a tRNA molecule that is certainly complementary to a selected codon on an mRNA molecule.
control centre – compares values to their regular variety; deviations result in the activation of the effector.
coeliac trunk – (also, coeliac artery) main branch on the abdominal aorta; presents rise to your still left gastric artery, the splenic artery, plus the typical hepatic artery that types the hepatic artery for the liver, the appropriate gastric artery to the abdomen, plus the cystic artery towards the gall bladder.
arrector pili – sleek muscle mass that is certainly activated in reaction to here external stimuli that pull on hair follicles and make the hair “rise up”.
Bachmann’s bundle – (also, interatrial band) group of specialised conducting cells that transmit the impulse directly from the SA node in the ideal atrium towards the left atrium.
canaliculi – (singular = canaliculus) channels within the bone matrix that property among an osteocyte’s many cytoplasmic extensions that it takes advantage of to speak and acquire nutrients.
atrium – (plural = atria) higher or receiving check here chamber from the heart that pumps blood in to the reduced chambers just previous to their contraction; the best atrium receives blood through the systemic circuit that flows into the ideal ventricle; the remaining atrium receives blood through the pulmonary circuit that flows to the left ventricle.
Boyle’s law – partnership in between volume and tension as explained with the method: P1V1 = P2V2.
capillary – smallest of blood vessels in which Actual physical exchange happens concerning the blood and tissue cells surrounded by interstitial fluid.
deep femoral vein – drains blood through the deeper parts in the thigh and results in the femoral vein.
brachial plexus – nerve plexus related to the reduced cervical spinal nerves and first thoracic spinal nerve.