Term
| reflexes that involve the internal organs |
|
Definition
|
|
Term
|
Definition
| are spinal reflexes that can take place w/o input from brain |
|
|
Term
|
Definition
|
|
Term
|
Definition
| sensory receptors; monitor position of limbs, movements, effort exerted in lifting |
|
|
Term
|
Definition
| carry output signal; neurons that innervate skeletal muscle contractile fibers |
|
|
Term
| 3 types of proprioceptors |
|
Definition
| muscle spindles, Golgi tendon organs, joint receptors=stimulated by mechanical distortion |
|
|
Term
| sense info from joint receptors |
|
Definition
| are integrated in cerebellum |
|
|
Term
|
Definition
| stretch receptors that send info to spinal cord/brain about muscle length |
|
|
Term
|
Definition
| resting muscle tension (due to muscle spindles) |
|
|
Term
|
Definition
| adjust stretch sensitivity of muscle spindles so they are active no matter what the muscle length is |
|
|
Term
| muscle spindle consists of connective tissue that encloses |
|
Definition
| intrafusal fibers, a small group of muscle fibers (ends-contractile, center lack myofibrils) |
|
|
Term
| intrafusal fibers innervated by |
|
Definition
|
|
Term
| Golgi tendon organs located |
|
Definition
| junction of tendons & muscle fibers |
|
|
Term
| golgi tendon organs respond |
|
Definition
| primarily to tension from isometric contraction |
|
|
Term
|
Definition
| pathway controlling a joint |
|
|
Term
|
Definition
| polysynaptic; pull limbs away from painful stimuli |
|
|
Term
| central pattern generators |
|
Definition
| networks of neurons that control the most complicated spinal reflex pathways |
|
|
Term
| can skeletal muscles communicate directly w/each other? |
|
Definition
|
|
Term
|
Definition
| rhythmic, reflex, voluntary |
|
|
Term
|
Definition
| most complex; require integration at cerebral cortex; can be initiated at will |
|
|
Term
|
Definition
| allow the body to prepare for voluntary movement |
|
|
Term
| 3 levels of nervous system that control movement |
|
Definition
| spinal cord; brain stem/cerebellum; cerebral cortex/basal ganglia |
|
|
Term
| the thalamus relays & modifes signals being sent from |
|
Definition
| spinal cord, basal ganglia& cerebellum to cerebral cortex |
|
|
Term
| reflex movements dont require input from |
|
Definition
|
|
Term
| brain stem is in charge of |
|
Definition
postural reflexes
hand eye movements |
|
|
Term
| voluntary movements require coordination between |
|
Definition
| cerebral cortex, cerebellum, basal ganglia |
|
|
