Assignment   2 Anatomy  and  Physiology  (continued):  First  Aid  and  Emergency  Procedures Textbook  Assignment:  pages  3-36  through  4-50 --------------------------------------------------------------------------------------------------------------- 2-1. 2-2. 2-3. 2-4. 2-5. 2-6. The inner part of the eye derives its nourishment primarily from the vascular structure of the 1. conjunctiva 2. sclera 3. vitreous  humor 4. choroid The anterior and posterior chambersa of the eye are separated by the 1. lens 2. iris 3. choroid 4. aqueous  humor Dilation of the pupil is a muscular response of the iris as a result of 1. increased intensity of light 2. decreased intensity of light 3. irritation to the sclera 4. irritation  to  the conjunctiva Seeing in the dark is made possible by the 1. rods 2. cones 3. iris 4. choroid The mechnical transmission of sound from the tympanic membrane to the inner ear is through the 1.    auditory  ossicles 2.    eustachian  tube 3.   bony   labyrinth 4. organ  of  Corti Neural stimulus used to maintain equilibrium comes from the 1.    fenestra  rotunda 2.    fenestra    ovalis 3. semicircular  canals 4.    organ of Corti 2-7. 2-8. 2-9. 2-10. 2-11. 2-12. The conversion of mechanical impulses (sound waves) to neural impulses that can be interpreted by the brain is a function of the 1. endolymph 2. semicircular  canals 3. organ of Corti 4. fenestra  ovalis Meisaner’s corpuscles are encapsulated nerve endings that function as primary receptors for 1. pressure 2. cold 3. heat 4. Smell Hormones secreted by the endocrine system are 1. secreted directly into the gland, tissue, of organ It influences. 2. directed to the gland, tissue, or organ by a duct system 3. secreted  into  the circulatory   system 4. typically produced in large quantities The disease characterized by a deficiency of the antidiuretic hormone is 1. myxedema 2. diabetes  insipidus 3. hyperthyroidism 4. Addison’s disease The overproduction of which hormone leads to acromegaly? 1. Somatotropin 2. Oxytocin 3. Gonadotropin 4. Thyroxin An insufficient secretion of thyroxin is characterized by all EXCEPT 1. weight gain 2. fatigue 3. profuse  sweating 4. slowed heart rate 7