Which of the following choices correctly describes the sensory pathway?

Select one:

a. Sensory neuron → brain → motor neuron

b. Sensory receptors → sensory pathway → parietal lobe → motor pathway → muscles

c. Sensory neuron → spinal cord → motor neuron

d. Sensory receptors → sensory pathway → spinal cord → motor pathway → muscles

 

All of the following statements correctly describe a polarized membrane EXCEPT which?

Select one:

a. An RMP of –60 mV indicates that there are more positive ions inside the axon than an RMP of –70 mV.

b. There is a difference in the charges found on the inside of the membrane to the outside.

c. A resting membrane potential (RMP) of –90 mV indicates the there are more positive ions inside the axon than an RMP of –70 mV.

d. There is a separation of the charge by a membrane, resulting in its ability to do work.

 

 

Events in Visual Perception 

Potassium channels opens, allowing potassium ions to move out. Some sodium channels open in the dendrite. All ion channels close and the Na+/K+ exchange pump starts working. Sodium ions diffuse toward the first node of Ranvier in the axon Lights hit the retina. The threshold level is reached at the first node of Ranvier in the axon Sodium channels open in the neural membrane of the axon, allowing the remaining sodium ions to move in.

List, in order, the events in visual perception that must occur for a person to see an object: Answer, Answer, Answer, Answer, Answer, Answer, and Answer.