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The Nervous System Lab 8. Neuron Anatomy. Neuron Classification. Nerve Organization. The Central Nervous System. Brain 12 pairs of cranial nerves Spinal Cord 31 pairs of spinal nerves. Major Parts of the Brain. The Hypothalamus. Protective Coverings. Cranial Nerves. O h O nce
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The Central Nervous System • Brain • 12 pairs of cranial nerves • Spinal Cord • 31 pairs of spinal nerves
Cranial Nerves Oh Once One Takes The Anatomy Final, Very Good Vacations Are Heavenly
The Spinal Cord • Runs from brain stem to coccyx • 31 spinal nerves • Cervical (C1-C8) • Thoracic (T1-T12) • Lumbar (L1-L5) • Sacral (S1-S5) • Coccygeal
Distribution of Spinal Nerves • Cervical plexus (C1-C5) • Phrenic nerve • Brachial plexus (C5-C8, T1) • Radial, median, ulnar nerves • Lumbar plexus (L1-L4) • Obturator and femoral nerves • Sacral plexus (L4-L5, S1-S4) • Sciatic nerve • Coccygeal plexus (S4-S5, coccygeal)
Exam Next Week • Same set up as all previous exams • 50 – 60 % Identification w/ matching, multiple choice, T/F and short answer
Today in lab: A. Exercise 19-pre-lab activities & activities 1, 2, 3, 4, 5 & 6 and “Reviewing your knowledge” parts A&B. • Activities 2-6 use a reflex hammer. B. Exercise 21, Lab activity 2: Testing Cranial Nerve function & “Reviewing Your Knowledge” parts A& B. • Record results in Table 21.3. • Skip the nerve taste test with sugar &quinine • Throw away used tongue depressors and cotton-tipped applicators.