Purpose: To Test for the presence of shoulder instability. Test position: Sitting or standing. Performing the Test: The examiner grasps the wrist of the patient's elbow and pulls the arm distally. Observation is made of the amount of sulcus (space between the acromion process and humeral head) that is present with the distal arm pull. A positive test is considered for multidirectional instability if 1-2 cm of sulcus is noted. Diagnostic Accuracy: Unknown.
> Synapsis (also called syndesis) is the pairing of two homologous chromosomes that occurs during meiosis. It allows matching-up of homologous pairs prior to their segregation, and possible chromosomal crossover between them. Synapsis takes place during prophase I of meiosis.
This essay has been submitted by a student. This is not an example of the work written by our professional essay writers. A synapse happens when the electrical activity in the pre-synaptic neuron influences the post-synaptic neuron. There are two types of synapses in the body, the electrical (gap junctions) and chemical. Electrical synapses occur in pre and post synaptic neurons that are joined via gap junctions.