13 October 2010 Test # 1 Results Multiple Choice counted 80% Essay (SA) counted 20% Test 1 MC SA (Essay) Overall Mean ± SD 83 ± 9 79 ± 24 82 ± 10 Median 85 90 Tutors available through Peer Tutoring (Dr. Grinnell) See Dr. Davis for pointers (Thursdays are good!) Two 1QQs on Friday: One based on today’s lecture, the other based on Visual System Lecture/Demo Part 1. Special Quiz on Cranial Nerve name, number, & function on Wednesday.
1QQ # 16 for 8:30 am Which of the following are true? The parietal lobe is part of the cerebrum The parietal lobe is part of the forebrain The thalamus is part of the forebrain The thalamus is part of the diencephalon The diencephalon is part of the midbrain Why is it safer to withdraw a sample of cerebrospinal fluid from the L2 vertebral level than the T2 vertebral level?
1QQ # 16 for 9:30 am Which of the following are true? The diencephalon is part of the midbrain The thalamus is part of the diencephalon The pons is part of the midbrain The parietal lobe is part of the forebrain The thalamus is part of the forebrain If you suspected that a certain subregion of the hypothalamus was heavily involved in thermoregulation, what experiment could you conduct to test your hypothesis and what would you predict the outcome to be?
13 October 2010 Autonomic Nervous System Anatomy of Sympathetic & Parasympathetic Locations of cell bodies, routes and lengths of axons Neurotransmitters NT receptors, agonists, and antagonists Single and dual innervation of targets Sensory Physiology (Chapter 7) Transduction Coding for sensory modality, intensity, duration, and location
S 1 Figure 6.43 Locations of neuronal cell bodies, ganglia, pharmacology of the neuromuscular junction (NMJ) at skeletal muscle (nAChR) Diagram of NMJ compared to synaptic varicosities characteristic of autonomic postganglionic axons. Locations and proximities of target cells and distributions of receptors on target cells. Somatic = excitatory only at NMJ (ex. Reduced muscle tone) Autonomic= exitatory or inhibitory depending on NTs and their receptors.
S 2 Some single innervation (spleen, kidney, adrenal medulla) Figure 6.44 Parasympathetic (cranio-sacral) division) Some Dual innervation with antogonistic effects Sympathetic (thoraco-lumbar) division
S 3 Figure 6.45 Explanation of why activation of the sympathetic division has widespread effects.
S 4 Figure 6.46 Antagonist = Curare Antagonist = Atropine Adrenal medulla is modified sympathetic ganglion that secretes mainly EPI
S 5 Table 6.11