Splh 620 - Exam 1 - Arts Questions And Answers

Proprioceptors {Ans: (Muscle spindle receptors, Golgi tendon organs, Joint capsule receptors) (found in muscles, joints, and tendons), provides information about muscle stretch, joint position, tendon tension. is the sense of position and movement of one's own limbs, body, and face without using vision. Receptors:1) Muscle spindle receptors 2) Golgi tendon organs3) Joint capsule receptors}discriminative touch {Ans: includes touch, pressure, and vibration perception, enables us to describe the shape and texture of an object without seeing it}o Cutaneous receptors {Ans: - In addition, receptors in the skin signal postural information. - Cutaneous proprioception is important for control of lip movements in speech and facial expression.}Schwann cells {Ans: o Schwann cells - peripheral nervous system § PNS myelination cells, produce myelin to cover axons in the PNS § Single myelin section § Each cel provides myelin for one neuron}Inhibitory post-synaptic potential (IPSP) {Ans: - - Potassium (k+) channels open - • potassium moves out of the postsynaptic cell, making it more negative - - The cell is now inhibited• less excitable than it would be if the IPSP were not present}Resting membrane potential {Ans: -70mV 0 outside of cell}o How to get a dynamic range?