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Unit 4 general Tips
Unit 4 general Tips
Some questions in Exam 4 will be similar to Exam 2 & 3 questions.
Be prepared to recognize the effects of nerve lesions and sensory / motor / parasympathetic / sympathetic deficits.
You should know the sensory territories and motor innervation of the nerves in the head and neck.
Check for connections among lesson plans. For example, some nerves (like CN V3) will innervate muscles we discuss in multiple lessons plans and multiple regions of the head and neck.
Remember that some nerves hitchhike on other nerves. You should know these pairs. A lesion or injury will only affect both if it is distal to the location they begin traveling together.
Exam Question Types
Exam Question Types
Understand structures associated with each region, cavity, fossa, etc. of the head and 3D relationships within the head and neck.
For example, understand the anatomy associated with the oral cavity. Understand the continuity between the oral cavity, the nasal cavity, and the pharynx.
Learning Objectives
Learning Objectives
Cranial Nerve >>
Neck 1 >>
Neck 2 >>
Autonomics of the Head >>
Face & Scalp >>
Spinal Cord, Brain, Meninges >>
Oral Region >>
Nasal Cavity, Palate & Ear >>
Orbit >>
Unit 4 Focused Tips
Unit 4 Focused Tips
Please click on any of the images above to read more tips about that specific content on the Unit 4 Exam or see the image below for the Trigeminal Scaffold!
Trigeminal Scaffold
This is a schematic of what I call the Trigeminal scaffold. The trigeminal nerve travels virtually everywhere in the head and forms something of a scaffold for all of the parasympathetic branches targeting structures in the head. They will “hitchhike” on branches of the trigeminal nerve to get to those structures and the ganglia containing their post-ganglionic cell bodies dangle on branches of trigeminal. This is a schematic of the pathway of the trigeminal nerves and the parasympathetic branches as they travel to their target structures. A video will be arriving soon to describe this schematic. Further details of the nerves are available in the notes and ILM slides. -Dr. Garofalo
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