ANAT 1100 Tutorial 4 - CNS/SPECIAL SENSES AND ANS   - Central Nervous System 1

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ANAT 1100 Tutorial 4 - CNS/SPECIAL SENSES AND ANS

 

- Central Nervous System

1. Start with the scalp and move deeper. Identify the order of the meninges and various spaces between. Trace the flow of CSF from the creation in the choroid plexuses to reabsorption to the dural sinuses. Which space contains CSF?

2. Describe the role of each of the functional areas in the lobes of the brain (eg frontal lobe - primary motor area, premotor area, Broca's area, etc)

3. Identify the 12 pairs of cranial nerves and their respective function. 

 

- Spinal Cord

1. Describe the different sensory and motor tracts including the type of information transmitted by each, the direction it is travelling (ascending or descending) and whether they travel ipsilaterally or contralateral.

2. Describe the steps in a reflex arc.

3. Discuss the composition of a peripheral nerve. What is the difference between nerve and tract?

4. Where does the rami branch from and how do the ventral and dorsal rami differ in terms of location and function?

5. What is a plexus? List the nerve plexuses and the major nerves originating from each.

 

- Special Senses

1. Describe the pupillary reflex; identify its function, the components of the reflex and the results of damaging the cranial nerves/tracts that are part of this reflex.

2. Identify the layers of the wall of the eye and indicate the paths that light and the subsequent nerve impulse take.

3. Identify the function of the cornea, lens, suspensory ligaments, ciliary muscle and ciliary processes.

4. Describe accommodation and refraction.

5. What is contained within the middle and inner ear? 

 

- Autonomic Nervous System

1. What are the two branches of the ANS and their basic respective functions? 

2. Draw the organization of typical sympathetic and parasympathetic neurons. Include types of neurons, neurotransmitters, and cell body locations.

3. Differentiate between cholinergic and adrenergic neurons.

4. What are the functional differences between α1, α2, β1 and β2 receptors? 

5. On any one organ, the SNS and PNS typically have a(n) __________________ effect