Reference no: EM132379064

Question

1. What are neural pathways?

2. What are the functions of somatic receptors and sensory pathways?

3. What is the function of motor pathways?

Somatic Sensory Pathways

4. Three neuron types are needed for a somatic sensory pathway. Describe the role of each.

a. first order neurons

b. second order neurons

c. third order neurons

5. How do somatic sensory nerve impulses get to the brain stem from the head itself?

6. Identify the three pathways somatic impulses enter the spinal cord and ascend to the brain.  

7. For each of the following, describe the Posterior Column-Medial Lemniscus Pathway.

a. perceptions conducted

b. brain reception region

8. For each of the following, describe the Anterolateral Spinothalamic Pathway.

a. perceptions conducted

b. brain reception region

9. For each of the following, describe the Spinocerebellar Pathway.

a. perceptions conducted

b. brain reception region

Somatic Motor Pathways

10. What two main somatic motor pathways convey action potentials to skeletal muscles?

11. For each of the following, describe the role of each part of a direct motor pathway.

a. upper motor neurons  

b. interneurons

c. lower motor neurons

d. primary motor area and motor cortex

12. What are the functions of the indirect motor pathway?  

13. Generally describe the routes taken by the axons of upper motor neurons of indirect motor pathways.

14. Why are lower motor neurons referred to as the final common pathway?