Discuss the path of nerve impulses from the spiral organ (organ of Corti) to the primary auditory cortex in the brain
What will be an ideal response?
Auditory signals travel through the cochlear portion of the vestibulocochlear nerve (CN VIII) to the cochlear nuclei. The cochlear nuclei project bilaterally to the superior olivary nucleus in the pons. Auditory information is then sent to the inferior colliculus of the midbrain. The auditory information is relayed to the medial geniculate nucleus of the thalamus. The thalamus sends the information to the primary auditory cortex in the superior portion of the temporal lobe where conscious awareness of sound begins, as well as analysis of its location, pitch, and loudness.
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There is a legend about an autopsy having been performed on a space alien in New Mexico, many decades ago. Assuming that this alien was as well-educated and trained on its planet as NASA educates and trains astronauts on Earth, what feature would be expected in the alien's brain?
A) at least 12 pairs of cranial nerves B) a thick band of fibers connecting right and left hemispheres C) a system of fluid-filled cavities deep in the brain D) glandular structures resembling the pineal and pituitary E) an enlarged area with surface grooves and folds
The ________ pathway for complement activation involves binding with immunoglobulins, while the ________ pathway involves binding to carbohydrate chains on a microbial surface
Fill in the blank(s) with correct word
______ propels sperm through the environment
Fill in the blank(s) with the appropriate word(s).
Which best defines "superficial"?
A. On the inside B. Close to the attachment of the appendage to the trunk C. On the outside D. At the head end E. Toward the end of an appendage