cardiac skeleton – (also, skeleton of your heart) strengthened connective tissue Positioned within the atrioventricular septum; incorporates 4 rings that surround the openings involving the atria and ventricles, plus the openings to the pulmonary trunk and aorta; The purpose of attachment for that heart valves.
cardiac notch – melancholy within the medial area of your inferior lobe in the left lung the place the apex in the heart is located.
capacitation – system that occurs in the feminine reproductive tract in which sperm are prepared for fertilisation; results in increased motility and modifications in their outer membrane that enhance their power to launch enzymes capable of digesting an oocyte’s outer layers.
prevalent iliac vein – considered one of a set of veins that flows into the inferior vena cava at the level of L5; the still left popular iliac vein drains the sacral area; divides into external and inner iliac veins close to the inferior percentage of the sacroiliac joint
chordae tendineae – string-like extensions of hard connective tissue that stretch in the flaps with the atrioventricular valves website into the papillary muscles.
Brodmann’s parts – mapping of locations with the cerebral cortex determined by microscopic anatomy that relates distinct parts to purposeful discrepancies, as described by Brodmann from the early check here 1900s.
autonomic anxious procedure (ANS) – useful division from the nervous procedure which is answerable for homeostatic reflexes that coordinate Charge of cardiac and smooth muscle, together with glandular tissue.
defensins – antimicrobial proteins released from neutrophils and macrophages that build openings inside the plasma membranes to eliminate cells.
aortic arch – arc that connects the ascending aorta on the descending aorta; ends within the intervertebral disk between the fourth and fifth thoracic vertebrae.
The 3rd standard operate of your skeleton is always that of movement. The nice majority in the skeletal muscles are firmly anchored to the skeleton, normally to at the least two bones and in some instances to several bones.
biological macromolecule – substantial molecule needed for everyday living that is definitely created from scaled-down organic molecules.
The different organ units Every single have distinctive features and for that reason one of a kind roles to complete in physiology. These several capabilities may be summarized when it comes to a couple of that we'd look at definitive of human lifetime: Corporation, metabolism, responsiveness, motion, development, and replica.
connective tissue – form of tissue that serves to hold set up, link, and combine the body’s organs and units.
complete refractory period of time – time through an motion period of time when One more action prospective cannot be generated since the voltage-gated Na+ channel is inactivated.