1 / 35

EXERCISE 19: BRAIN AND CRANIAL NERVES

EXERCISE 19: BRAIN AND CRANIAL NERVES. http://www.vision.caltech.edu/feifeili/101_ObjectCategories/brain/image_0026.jpg. FOREBRAIN. MIDBRAIN. HINDBRAIN. Mesencephalic or CEREBRAL aqueduct. CEREBRUM. Transverse Fissure. ON PARIETAL LOBE Primary somato -sensory area.

pierce
Download Presentation

EXERCISE 19: BRAIN AND CRANIAL NERVES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. EXERCISE 19: BRAIN AND CRANIAL NERVES http://www.vision.caltech.edu/feifeili/101_ObjectCategories/brain/image_0026.jpg

  2. FOREBRAIN MIDBRAIN HINDBRAIN

  3. Mesencephalic or CEREBRAL aqueduct

  4. CEREBRUM Transverse Fissure

  5. ON PARIETAL LOBE Primary somato-sensory area ON FRONTAL LOBE Primary motor area

  6. Cortex (superficial) is gray matterWhite matter is deeper

  7. DIENCEPHALON= thalamus + hypothalamus

  8. Sensory Nerve Attachments Optic nerves: to eyes Optic chiasm: cross Optic tracts: to brain

  9. Endocrine Attachments Pineal Gland

  10. MIDBRAIN CORPORA QUADRIGEMINA

  11. HINDBRAIN

  12. HINDBRAIN--cerebellum

  13. MENINGES Same setup as spinal cord— Dura mater most superficial, Arachnoid, Pia mater closest to brain

  14. CHOROID PLEXUSES Specialized capillaries in ventricles Produce CSF—Circulates from here to central canal (s. cord) & around outside of brain/cord too

  15. CRANIAL NERVES 12 pairs Connect to brain: CN I cerebrum CN II thalamus CN III-XII brain stem O O O T T A F V G V A H S S M M B M B S B B M M Nerve names: Nerve functions:

  16. Oh, Once One Takes The Anatomy Final, Very Good Vacations Are Heavenly… • Some Say Marry Money, But My Brother Says Big BROWNIES Matter Most

  17. CN I: OLFACTORY • SENSORY • Smell • From olfactory epithelium • Olfactory nerve-bulb-tract • (Cribriform foramina of ethmoid) 14-21

  18. CN II: OPTIC • SENSORY • From retina • Optic nerve-chiasm-tract • (Optic canal-sphenoid) 14-22

  19. CN III: OCULOMOTOR • Mostly MOTOR • To eye muscles • (superior orbital fissures-sphenoid) 14-22

  20. CN IV: TROCHLEAR • Mostly MOTOR • To superior oblique eye muscles • (superior orbital fissures-sphenoid) 14-22

  21. CN V: TRIGEMINAL • Mixed (sensory and motor) • Ophthalmic Branch • Sensory-orbital, upper face structures • Maxillary Branch • Sensory-lower face structures • Mandibular Branch • Mixed-mouth

  22. 14-24

  23. CN VI: ABDUCENS • Mostly motor • To lateral rectus eye muscles • (superior orbital fissure) 14-23

  24. CN VII: FACIAL • Mixed • To parts of face • Expressions, tear/salivary glands 14-25

  25. CN VIII: VESTIBULOCOCHLEAR • Sensory, from inner ear • Vestibular branch • Balance, equilibrium • Cochlear branch • Hearing 14-26

  26. CN IX: GLOSSOPHARYNGEAL • Mixed to head and neck • Sensory: posterior tongue • Motor: pharyngeal muscles (swallowing), salivary gland 14-27

  27. CN X: VAGUS • Mixed to visceral organs, larynx, pharynx • Sensory: ear, diaphragm, organs • Motor: pharynx, digestive, respiratory, cardiovascular systems 14-28

  28. CN XI: ACCESSORY • Mostly motor • To muscles of neck, upper back • Cranial root • Fibers originate in medulla • Spinal root • Some motor fibers originate in spinal cord • Join at foramen magnum 14-29

  29. CN XII: HYPOGLOSSAL • Mostly motor • To tongue muscles 14-29

  30. CRANIAL NERVES

  31. Sheep Brain Dissections • http://www.gwc.maricopa.edu/class/bio201/brain/brshpx.htm • http://www.biology.ualberta.ca/courses.hp/zoo.225/lab8.html • http://darwin.baruch.cuny.edu/gelfond/Bio1005/neural.htm • http://a-s.clayton.edu/biology/biol1151L/lab10/lab_10.htm

  32. Some Help with the Muscles: • Start w/Flex Dig Longus, to Tib Ant: • Fat Ted Eats Pizza (or Fritos if you say Fibularis) So Greasy • Upper leg not including Quads • Sart, add long, grac, add mag, semimem, semiten, bic fem • Some Lucky Goodlooking Males Make Tacos Better

More Related