Joints or articulations (connections between bones) can be classified in a number of ways. The primary classifications are structural and functional. Functional classification is based on the type and degree of movement permitted. Types of Synovial Joints.jpg: Image of a skeleton and skematics of the different classes of synovial joints. Three Categories of Functional Joints
Nerve impulse. Definition. noun. (1) The movement of action potential along a nerve fiber in response to a stimulus (such as touch, pain, heat or cold). (2) The relaying of a coded signal that travels along a nerve cell membrane to an effector, such as muscle, gland or another nerve cell.Supplement. A nerve impulse is the relaying of a coded signal from a nerve cell to an effector (a muscle cell, a gland cell or another nerve cell) in response to a stimulus.It is the means by which a nerve cell communicates with another cell.erve impulse. Definition. noun. (1) The movement of action potential along a nerve fiber in response to a stimulus (such as touch, pain, heat or cold). (2) The relaying of a coded signal that travels along a nerve cell membrane to an effector, such as muscle, gland or another nerve cell.
Appropriate responses are carried out by effectors (a muscle or gland). The Neuron. The neuron, a nerve cell, is the functional unit of the nervous system that carries the impulse (the message) to the appropriate part of the nervous system or interprets the impulse and allows a response.There are three types of neurons and each has different functions.ppropriate responses are carried out by effectors (a muscle or gland). The Neuron. The neuron, a nerve cell, is the functional unit of the nervous system that carries the impulse (the message) to the appropriate part of the nervous system or interprets the impulse and allows a response.