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35 Cards in this Set
- Front
- Back
Kinetic chain
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Combinatino of interrelation of the nervous system, skeletal, and muscular systems
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Nervous system
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Large groups of cells that forms nerves providing communication networks within the body
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Sensory Function
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Ability of the nervous system to sense changes in either internal or external environments
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Integrative Function
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Ability of nervous system to analyze and interpret sensory information allowing proper decision making.
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Motor Function
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Neuromuscular response to sensory information.
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Neuron
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Functional unit of the nervous system
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Sensory (afferent)neurons
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Neurons that transmit nerve impulses from effector sites to the brain or spinal cord.
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Interneurons
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Neurons that transmit impulses from one neuron to another.
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Motor (efferent) neurons
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Neurons that transmit nerve impulses from the brain or spinal cord to the effector sites.
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Central Nevous System
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brain and spinal cord and serves mainly to interpret information
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Peripheral Nervous system
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Cranial and spinal nerves that spread throughout the body & serve to relay information from organs to the brain and viceversa
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Mechanoreceptors
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Sensory receptors responsible for sensing distortionin bodily tissues.
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Muscle spindles
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Fibers sensitive to change in lenght of the muscle and rate of that change.
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Golgi tendon organs
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Organs sensitive to change in tension of the muscle and the rate of change
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joint receptors
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Receptors sensitive to pressure, accelaration, and decelaration in the joint.
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tendons
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attach muscles to bone and provide anchor
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muscles
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tissue of consisting of long cells that contract when stimulated to produce motion
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neurotransmitters
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chemical messengers that transmit electrical impulses from nerve to muscle
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Muscular system
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series of muscles commanded by nervous system to move skeletal system
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Sacomere
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functional unit of muscle that produces muscular contraction
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Neural Activator
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contraction of a muscle generated by communication between nervous & muscular system
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Skeletal system
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Body's frame ( bones and joints)
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bones
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Hard connective tissue that creates a skeletal framework
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joints
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movable places where two or more bones meet
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Axial skeleton
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skull, rib cage and vertebral column
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Appendicular skeleton
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portion of the skeletal system that includes the upper and lower extremities
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Depresion
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flattened or indented portion of bone, which can be a muscle attachment site
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Process
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projection protruding from bone where muscles, tendons, and ligaments can attach
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Arhrokinematics
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movement of the joints
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Synovial joints
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joints held together by a joint capsule & ligaments and are most associated with movement in the body.
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nonsynovial joints
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joints that do not have joint cavity, connective tissue or cartilage
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ligaments
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connective tissue that connects bone to bone
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Kind of muscle fibers that are "fast twitch"
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Type II
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Characteristics of Type I muscle fibers
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more capillaries, increased oxygen delivery, smaller in size, less force to produce and slow to fatigue
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Motor unit
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motor neuron and all of the muscles fibers it innervates
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