The ligament of the ankle that connects the lateral talus and fibular malleolus, preventing anterior displacement of the talus in the mortise. This ligament is injured with an excessive inversion and plantar flexion motion (supination) and is the most commonly injured ligament of the ankle.eriodontal ligament the fibrous connective tissue that surrounds the root of a tooth, separating it from and attaching it to the alveolar bone, and serving to hold the tooth in its socket. It extends from the base of the gingival mucosa to the fundus of the bony socket.
This gap between the two cells is called a synapse. Impulses are carried across a synapse by chemical messengers called neurotransmitters. Approximately 30 different neurotransmitters have been identified, but they all do one of two things: Stimulate the action potential in the next neuron cell.Speed up the impulse.Inhibit the action potential in the next neuron.mpulses move from one nerve cell to another because of a difference in electrical action potential caused by ions inside and outside the cell. The cell membrane is selectively permeable to potassium ions, K + , and highly impermeable to sodium ions, Na + .
An electrial nerve impulse travels across a synapse by diffusion. The neurotransmitter substance from the pre-synaptic cleft travels across the synapse via diffusion. This is â¦ then received by receptors in the post synaptic cleft.he neurotransmitter binds to specific receptors on the post-synaptic membrane and that causes the action potential to propagate on (or for the neurotransmitter to cause an action like a muscle contraction).