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Unformatted text preview: 04/07/2011 Lecture 22 Clicker question #1: How many different somatosensory neurons are required to transmit an electric signal from the CNS to an effector neuron; where is/are the cell body/cell bodies located? B. 1; 1 in the ventral horn of the spinal cord Fenestrated capillaries: Have pores in the endothelial cells (6-15 nm in diameter) Endocrine glands, intestines, pancreas, and glomeruli of kidney Allow small molecules and limited amounts of protein to diffuse How do red blood cells get into the capillaries in the bone marrow? Sinusoidal capillaries have similar sized openings (6-15 nm in diameter) in the endothelium Larger molecules (up to 60 nm) pass by reticuloendothelial cell-mediated phagoendocytosis and transvascular release aided by a discontinuous basal lamina bone marrow, lymph nodes, and adrenal gland, liver, spleen III. Brain a. Introduction 4. Meninges = 3 layers of CT surrounding the CNS Protect the CNS Contains a portion of the CSF...
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- Spring '08