Straighterline AP2 202 Anatomy & Physiology 2 A&P 2 test 13 Grade 40.00 out of 40.00 (100%)

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Straighterline AP2 202 Anatomy & Physiology 2 A&P 2 test 13 Grade 40.00 out of 40.00 (100%) Question 1 Question text As parturition nears, the levels of progesterone ______ and the levels of es... trogen ______. Select one: a. decrease; increase b. increase; decrease c. decrease; decrease d. increase; increase Question 2 Question text Colostrum differs from milk in that it contains Select one: a. little fat. b. no antibodies. c. more protein. d. more lactose. e. more fat. Question 3 Question text The hormone(s) responsible for preparing the breasts for lactation during pregnancy is (are). Select one: a. estrogen. b. progesterone. c. oxytocin. d. prolactin. e. both estrogen and progesterone. Question 4 Question text Identify the hormone secreted during pregnancy that cause the ducts of the mammary glands to grow and branch when in high levels. Select one: a. Estrogen b. Progesterone c. Prolactin d. Growth hormone Question 5 Question text Which of the following is involved in stimulating milk letdown? Select one: a. increased estrogen levels b. increased progesterone levels c. mechanical stimulation of the breasts that cause release of oxytocin d. secretion of a small amount of milk e. None of these choices is correct Question 6 Question text If neither testosterone nor mullerian-inhibiting hormone is secreted during embryonic development Select one: a. the paramesonephric duct system degenerates. b. the mesonephric duct system is stimulated. c. internally female reproductive structures form. d. the individual appears as a male. e. internally male reproductive structures form. Question 7 Question text The first functional kidney is the Select one: a. mesonephros. b. pronephros. c. allantois. d. bulbos cordis. e. urorectal septum. Question 8 Question text Which germ layer is the thyroid derived from? Select one: a. ectoderm b. mesoderm c. endoderm Question text Germ layers form during the ____ period while organ systems mature during the ____ period. Select one: a. embryonic; fetal b. prenatal; neonatal c. germinal; embryonic d. germinal; fetal e. fetal; germinal Question 10 Question text The common junction of the digestive, urinary, and genital systems is the Select one: a. cloaca. b. coelom. c. allantois. d. hindgut. e. anus. Question 11 Question text Which of the following statements about the syncytiotrophoblast is false? Select one: a. It forms the developing embryo. b. It is composed of a non-dividing, multinucleated cell. c. It is nonantigenic, so that it triggers no immune response. d. It invades the maternal tissues that compose the endometrium of the uterus. e. It forms lacunae. Question 12 Question text An infant who has just started cooing and gurgling in response to smiles and attention from its parents is about _____ months old. Select one: a. two b. four c. six d. eight e. ten Question 13 Question text A clot or plaque which forms on the inside of blood vessel walls is called a(an) Select one: a. sclerosis. b. arteriosus. c. thrombus. d. embolus. e. plaque. Question 14 Question text Which of the following vitamins are thought to play a role in decreasing the physiological changes in aging? Select one: a. vitamins A and B12 b. vitamins A and B6 c. vitamins E and C d. vitamins A and D e. vitamins A and K Question 15 Question text Increased lipid deposits in the tunica intima of large arteries is called Select one: a. atherosclerosis. b. arteriosclerosis. c. a thrombus. d. an embolus. e. hardening of the arteries. Question 16 Question text Which of the following characterizes the developmental age of an eight month old infant? Select one: a. sits without support b. rolls from its back to its side c. smiles in response to people's faces d. pulls itself up to a standing position e. None of these choices is correct Question 17 Question text Failure of the neural tube to close in the region of the head results in Select one: a. anencephaly. b. ventricular enlargement. c. cleft palate. d. soft spots on the skull. e. hydrocephaly. Question 18 Question text Most congenital birth defects are caused by Select one: a. inherited traits. b. lack of oxygen to the fetus. c. viral infections during pregnancy. d. unknown causes. e. None of these choices is correct. Question 19 Question text A cleft lip results when Select one: a. the two halves of the secondary palate do not fuse. b. the frontonasal and maxillary processes do not fuse. c. the lateral edges of the nasal placodes do not fuse with the maxillary processes. d. the maxillary processes do not fuse with the mandibular processes. e. None of these choices is correct. Question 20 Question text Alcohol ingestion by a pregnant woman can cause birth defects in her baby; alcohol is a(an) Select one: a. carcinogen. b. mutagen. c. teratogen. d. oncogene. e. haptogen. [Show More]

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