blastocyst – time period for your conceptus for the developmental stage that consists of about 100 cells shaped into an inner cell mass that's fated to be the embryo and an outer trophoblast that is certainly fated to become the connected foetal membranes and placenta.
atlantoaxial joint – series of 3 articulations among the atlas (C1) vertebra along with the axis (C2) vertebra, consisting of the joints involving the inferior articular procedures of C1 as well as the exceptional articular procedures of C2, and also the articulation amongst the dens of C2 and the anterior arch of C1.
cochlear duct – Area throughout the auditory part of the inner ear which contains the organ of Corti which is adjacent to your scala tympani and scala vestibuli on either aspect.
dentin – bone-like tissue right away deep to your enamel from the crown or cementum of the basis of a tooth.
axillary artery – continuation from the subclavian artery as it penetrates the body wall and enters the axillary area; provides blood to the location in close proximity to The pinnacle from the check here humerus (humeral circumflex arteries); the majority of the vessel proceeds to the brachium and will become the brachial artery.
cuboid – tarsal bone that articulates posteriorly While using the calcaneus bone, medially Together with the lateral cuneiform bone, and anteriorly With all the fourth and fifth metatarsal bones.
atrioventricular (AV) node – clump of myocardial cells located in the inferior percentage of the best atrium within the atrioventricular septum; receives the impulse in the more info SA node, pauses, and afterwards transmits it into specialised conducting cells throughout the interventricular septum.
aponeurosis – wide, tendon-like sheet of connective tissue that attaches a skeletal muscle mass to another skeletal muscle or to some bone.
aortic arch – arc that connects the ascending aorta towards the descending aorta; finishes at the intervertebral disk amongst the fourth and fifth thoracic vertebrae.
diploid – affliction marked from the existence of the double complement of genetic content (two sets of chromosomes, one established inherited from Each individual of two mothers and fathers).
corticospinal tract – relationship in between the cortex and also the spinal twine responsible for creating motion.
alveolar duct – compact tube that qualified prospects with the terminal bronchiole for the respiratory bronchiole which is The purpose of attachment for alveoli.
anatomical useless space – air space current in the airway that in no way reaches the alveoli and for that reason never ever participates in gasoline exchange.
complete refractory period of time – time for the duration of an action period when A different motion potential can't be generated because the voltage-gated Na+ channel is inactivated.