pha 213_2011 make up lecture for final slides of 02-24-11

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The Nervous System:

The Nervous System 6 Major Divisions of the Brain – Figure 15.1

The Nervous System:

VI. The METENCEPHALON is composed of the PONS and the CEREBELLUM; we will consider each of these sub-regions separately. - extends inferiorly from the mesencephalon to the medulla oblongata and forms a prominent bulge on the anterior surface of the brainstem. The Nervous System Brain and Cranial Nerves Pons

The Nervous System:

Gray Matter - Cortex 1. – fine ridge-like folds 2. Lobes – relays auditory information a.) Anterior Lobe b.) Posterior Lobe A. Cerebellar Hemispheres - separated by the vermis The Nervous System Brain and Cranial Nerves Folia White Matter 1. - connects cerebellar cortex with cerebellar peduncles 2. Cerebellar a.) Superior b.) Middle c.) Inferior peduncles Arbor vitae VI. Cerebellum – located posterior to the pons

The Nervous System:

The Nervous System Table 15.10 The cerebellum is an automatic processing center that has 2 primary functions: 1) Adjusting the postural muscles of the body 2) Programming and fine-tuning voluntary and involuntary movements:

The Nervous System:

The Nervous System Figure 15.19

The Nervous System:

The Nervous System 6 Major Divisions of the Brain – Figure 15.1

The Nervous System:

The Nervous System Figure 15.20 The medulla oblongata physically connects the brain with the spinal cord, and many of its functions are directly related to this connection.

The Nervous System:

The Nervous System Brain and Cranial Nerves VII. Medulla oblongata – inferior portion of the brain stem

The Nervous System:

The Nervous System Brain and Cranial Nerves The Cranial Nerves – 12 Pairs - Figure 15.21

The Nervous System:

The Nervous System Brain and Cranial Nerves The Cranial Nerves - Figure 15.21

What do you need to know for Cranial Nerves? :

What do you need to know for Cranial Nerves? Name AND Number Is it Sensory OR Motor OR Both What is it’s function! What structures does it innervate? What happens when this nerve is damaged? (See Table 15.12 and last two slides in this presentation!)

Slide 12:

Cranial Nerves ALL THE DETAILS – Table 15.12

Slide 13:

Cranial Nerves Simplified What structures does the nerve innervate?

Slide 14:

Cranial Nerves Simplified What happens when the nerve is damaged?