University:
Biola University
Course:
BIOS 236 | Principles of Human Anatomy and Physiology
Academic year:

2024
Views:

147

Pages:

3
Author:

causentas5l7

Pal worksheet: nervous system, cranial nerves 1- 6, senses of vision and olfaction, wk9 Cranial nerves 1. Come up with a mnemonic to remember the names of the cranial nerves 2. Which cranial nerves are sensory, motor or mixed in function 3. Name at least one, but in many cases two or more functions, associated with each cranial nerve a. Cn1 cn 7 b. Cn2 cn 8 c. Cn3 cn 9 d. Cn4 cn 10 e. Cn5 cn 11 f. Cn6 cn 12 A. Identify all cranial nerves on the image below: Vision 4. Make a diagram of the visual pathway, include retinal output from both eyes. Indicate on your diagram where visual information crosses to the opposite side of the brain, and where it stays on the same side of the brain. Label all major anatomical structures involved in this pathway and in processing visual information. Which part of the brain processes visual information initially? Olfaction 5. Where are the nerve cells located that initially respond to odor cues in the environment? 6. Make a diagram/drawing of the olfactory pathway from periphery to the brain – include in your pathway context anatomy, such as relevant skull bones, etc. What skull foramina does the CN 1 course through? Lesion questions: 7. 8. 9. 10. 11. Loss of smell would involve which cranial nerve Left sided blindness would involve damage to which part of the visual pathway Eyelid is droopy: What cranial nerve is damaged? Right eye won’t abduct: what cranial nerve is damaged? Eye is elevated abnormally: what cranial nerve is damaged? 12. 13. 14. 15. Can’t feel a pinprick on the right cheek: what cranial nerve is damaged? Pupil does not react to light: what cranial nerve is damaged? A tumor is covering the foramen rotundum: what deficits might you expect? A tumor is covering the cribriform plate and compressing the cranial nerve fibers that course through it: what symptoms would you expect? 16. A tumor is compressing the superior orbital fissure? What symptoms might you see?