Anterior view of the left shoulder and acromioclavicular joints, and proper scapular ligaments. The glenohumeral (GH) joint is a true synovial ball-and-socket style diarthroidal joint that is responsible for connecting the upper extremity to the trunk.It is one of four joints that comprise the shoulder complex.This joint is formed from the combination of the humeral head and the glenoid fossa of the scapula.ogether, the joint capsule and the ligaments of the GH joint work to provide a passive restraint to keep the humeral head in contact with the glenoid fossa.
Insects, arachnids, centipedes and crustaceans are all arthropods.   An arthropod is an invertabrate animal that has an exoskeleton, a segmented body, and jointed appendages.    An ANTHROPOD is a bipedal humanoid (ie Homo Sapien, Homo Neanderthalus, Homo Habilus, Australopithicene Afarensis, and other hominids).irds, reptiles, fish, and even sometimes other arthropods eat each other.
Arthropods are the largest phylum in the animal kingdom; there are more types of arthropods than all other types of animals combined. They can vary in size from microscopic to larger than an adult human. Land arthropods are usually less than 15cm (approximately 5 inches).escription: The phylum Arthropoda includes three subphyla the Chelicerata, the Crustacea, and the Atelocerata, The Crustacia are primarily found in aquatic environments. The Crustacia will be discussed with the playa sub-community, which is a temporary pond or lake.