Refexes and receptors
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Somatic reflexes involve??
skeletal muscle contractions
Autonomic reflexes involve responses from??
smooth and cardiac muscles and glands
Reflex arc steps
- Sensory receptor
- Senory (afferent) Neuron
- Motor (Efferent) Neruon
- Effector organ (muscle or gland)
Muscle Spindles: initiate __________________ results in muscle contraction prevention injury due to overstretching: contraction of _____________ and relaxtion of antaginist
muscle do on action
does the opposite
Golgi Tendon organs: Initate tendon relfexes can override ___reflexes relives excess tension on musces and their tendons causeing relaxation of the ____ and contraction of the ____
ankel jerk reflex: striking the achillies tendon at the level of the ankle:
- Normal respones is plantarflexion
- diabetes nerosyphililis alcholism subarachnoid hemorage do not have this reflex
Babinski Reflex: Stroke the sole of the foot
- normal response is plantarflexion of the toes
- abnormal dorsifexion
Dermis adapt quickly detect touch sensation specifc feedback
epidermis constant feedback detect touch sensation dont adapt
dermis and sc adapt quickly to constant preasure sensation walking pressure borad range
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