md0006 - BASIC HUMAN ANATOMY.pdf - Raems.com

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(1) Coming off of the posterior and anterior sides of the spinal cord are the posterior (dorsal) and anterior (ventral) roots of the spinal nerve. An enlargement on the posterior root is the posterior root ganglion. A ganglion is a collection of neuron cell bodies, together, outside the CNS. (2) Laterally, the posterior and anterior roots of the spinal nerve join to form the spinal nerve trunk. The spinal nerve trunk of each spinal nerve is located in the appropriate intervertebral foramen of the vertebral column. (An intervertebral foramen is a passage formed on either side of the junction between two vertebrae.) (3) Where the spinal nerve trunk emerges laterally from the intervertebral foramen, the trunk divides into two major branches. These branches are called the anterior (ventral) and posterior (dorsal) primary rami (ramus, singular). The posterior primary rami go to the back. The anterior primary rami go to the sides and front of the body and also to the upper and lower members. b. Neurons of a "Typical" Spinal Nerve. A nerve is defined above as a collection of neuron processes. Thus, neuron processes are the components that make up a nerve. These processes may belong to any of several different types of neurons: afferent (sensory), efferent (motor), and visceral motor neurons of the ANS. (1) The afferent neuron and the efferent neuron are the two types we will consider here. An afferent neuron is one which carries information from the periphery to the CNS. A = toward FERENT = to carry An efferent neuron is one which carries information from the CNS to a muscle or gland. E = away from FERENT = to carry (2) The afferent neuron is often called the sensory neuron because it carries information about the senses to the CNS. The efferent neuron is often called the motor neuron because it carries commands from the CNS to cause a muscle to act. (3) A stimulus acts upon a sensory receptor organ in the skin or in another part of the body. The information is carried by an afferent (sensory) neuron through merging branches of the spinal nerve to the posterior root ganglion. The afferent (sensory) neuron's cell body is located in the posterior root ganglion. From this point, information continues in the posterior root to the spinal cord. The efferent (motor) neuron carries command information from the spinal cord to the individual muscle of the human body. MD0006 11-17
(4) Visceral motor neurons of the ANS (see section V), which innervate visceral organs of the body's periphery, are distributed along with the peripheral nerves. c. The General Reflex Arc (figure 11-9). (1) Definitions. Figure 11-9. The general reflex arc. (a) An automatic reaction to a stimulus (without first having conscious sensation) is referred to as a reflex. (As an example: The withdrawal of the hand from a hot object.) (b) The pathway from the receptor organ to the reacting muscle is called the reflex arc. (2) Components of the general reflex arc. The pathway of a general reflex arc involves a minimum of five structures. neuron. (a) The stimulus is received by a receptor organ. (b) That information is transmitted to the CNS by the afferent (sensory) MD0006 11-18
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U. S. ARMY MEDICAL DEPARTMENT CENTE
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TABLE OF CONTENTS Lesson Paragraphs
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9 THE HUMAN CARDIOVASCULAR AND LYMP
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MD0006 v LIST OF ILLUSTRATIONS Figu
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MD0006 vii LIST OF TABLES Table Pag
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Material Furnished: In addition to
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LESSON ASSIGNMENT LESSON 1 Introduc
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terminology. Accountants have debit
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. Head and Neck. The brain, eyes, e
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Figure 1-2. Anatomical position and
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1-11. NAMES a. Names are chosen to
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d. Mitochondria (Plural). Mitochond
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5. What is a cell? 6. What is a tis
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15. In figure 1-6, three points are
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18. In figure 1-8, parts of a "typi
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14. a. Midsagittal or median plane.
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2-1. DEFINITION LESSON 2 TISSUES OF
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d. Functions. According to its loca
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. Types of Bone Tissues. There are
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Figure 2-4. A neuron. Figure 2-5. A
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8. Characteristic cells of fibrous
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SOLUTIONS TO EXERCISES, LESSON 2 1.
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LESSON ASSIGNMENT LESSON 3 The Huma
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3-2. COVERINGS OF THE HUMAN BODY Th
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3-6. GLANDS The types of glands inc
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3-13. BURSA a. A bursa (figure 3-3)
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EXERCISES, LESSON 3 REQUIREMENT. Th
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16. The term serous refers to a . S
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13. Sebaceous glands produce an oil
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MD0006 4-2 4-13. Describe the gener
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Section II. BONE AS AN INDIVIDUAL O
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4-5. DEVELOPMENT OF AN INDIVIDUAL B
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Example: The frontal bone. (The fro
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d. Capsule. The "typical" synovial
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(2) In the plane joint, the contact
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Figure 4-3B. Posterior view of the
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(d) The sacrum, which is a bony fus
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Figure 4-6. The human skull (front
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PART UPPER MEMBER LOWER MEMBER GIRD
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Figure 4-8. The human scapula and c
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Figure 4-10. The human hand. Figure
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Figure 4-13. The human foot. MD0006
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7. In the early fetus, bones are pr
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17. Name and define the two major s
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19. The regions of the vertebral co
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5-1. MUSCLE TISSUES LESSON 5 THE HU
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Figure 5-1. Skeletal and facial mus
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a. Trunk Musculature. The trunk mus
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. Sesamoid bones, such as the patel
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6-1. GENERAL LESSON 6 THE HUMAN DIG
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a. Teeth. Figure 6-2. Anatomy of th
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6-4. PHARYNX The pharynx (pronounce
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common bile duct. The common bile d
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14. The texture of the pancreas is
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10. The process of digestion is fac
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7-1. INTRODUCTION LESSON 7 THE HUMA
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SUBDIVISION FUNCTION (1) SUPRALARYN
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(2) Oropharynx. The portion of the
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Figure 7-4. Infralaryngeal structur
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7-8. DIAPHRAGMATIC (ABDOMINAL) BREA
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9. The functions of the supralaryng
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8-3. THE KIDNEY a. General. (1) The
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the cortex layer, it once again bec
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eginning of an embryo (the process
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(2) Wall structure. The inner linin
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Figure 8-5. The human male genital
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(1) Surrounding the urethra is a ce
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8. The first coiled portion of the
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21. The external genitalia of the h
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19. The inner lining of the uterus
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LESSON 9 THE HUMAN CARDIOVASCULAR A
Page 159 and 160: (1) Red blood cells (erythrocytes).
Page 161 and 162: (1) The arteries carry blood away f
Page 163 and 164: (3) Relationship of wall thickness
Page 165 and 166: ecome closed for whatever reason, t
Page 167 and 168: Figure 9-5. Main arteries of the hu
Page 169 and 170: Figure 9-6. Main veins of the human
Page 171 and 172: a. Lymphatic Capillaries. Lymphatic
Page 173 and 174: 5. The most common types of white b
Page 175 and 176: 18. In the case of collateral circu
Page 177 and 178: SOLUTIONS TO EXERCISES, LESSON 9 1.
Page 179 and 180: 15. The coronary arteries supply "n
Page 181 and 182: LESSON ASSIGNMENT LESSON 10 The Hum
Page 183 and 184: . The Endocrine System. In the huma
Page 185 and 186: e. Of the many hormones produced by
Page 187 and 188: hormones are involved in the mobili
Page 189 and 190: 5. The pituitary body is a small -s
Page 191 and 192: SOLUTIONS TO EXERCISES, LESSON 10 1
Page 193 and 194: 13. During the first half of the me
Page 195 and 196: MD0006 11-2 11-12. Define periphera
Page 197 and 198: 11-5. NEURON PROCESSES Figure 11-1.
Page 199 and 200: a. The Synapse. A synapse (figure 1
Page 201 and 202: system (ANS). The CNS is made up of
Page 203 and 204: Figure 11-5B. Human brain (bottom v
Page 205 and 206: d. Ventricles. Within the brain, th
Page 207 and 208: Figure 11-7. A schematic diagram of
Page 209: (1) Cranial nerves. The 12 pairs of
Page 213 and 214: organ. The cell bodies of the secon
Page 215 and 216: (2) Motor pathways. A motor pathway
Page 217 and 218: 11-26. GENERAL Section IX. THE SPEC
Page 219 and 220: c. Internal Structures of the Eyeba
Page 221 and 222: (5) Iris. Another structure formed
Page 223 and 224: 11-30. GENERAL Section X. THE SPECI
Page 225 and 226: 11-33. THE INTERNAL EAR a. Labyrint
Page 227 and 228: Figure 11-14. Diagram of the scalae
Page 229 and 230: 11-36. SEMICIRCULAR DUCTS (FIGURE 1
Page 231 and 232: f. Cerebellum. The cerebellum has b
Page 233 and 234: 7. Each item below refers to the th
Page 235 and 236: 18. Groups of related functions are
Page 237 and 238: 30. If it carries information from
Page 239 and 240: 46. Name examples of general senses
Page 241 and 242: 61. The orbit is the cavity in the
Page 243 and 244: 73. The central column of the cochl
Page 245 and 246: SOLUTIONS TO EXERCISES, LESSON 11 1
Page 247 and 248: 19. The ventricles of the brain are
Page 249 and 250: 34. In the ANS, the number of neuro
Page 251 and 252: 52. The outermost layer of the eyeb
Page 253 and 254: ossicles are: malleus, incus, and s
Page 255: COMMENT SHEET SUBCOURSE MD0006 Basi
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