Chapter 4 Practice Questions

Answer stage of development that enters the uterus

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Answer: stage of development that enters the uterus Topic: CLEAVAGE 59) Column 1: blastomere Column 2: small cells produced by the cell divisions during cleavage Answer: small cells produced by the cell divisions during cleavage Topic: CLEAVAGE 60) Column 1: trophoblast Column 2: outer covering of cells of the blastocyst Answer: outer covering of cells of the blastocyst Topic: CLEAVAGE 61) Column 1: embryoblast Column 2: inner cell mass that develops into the embryo Answer: inner cell mass that develops into the embryo Topic: CLEAVAGE Match the germ layers in column 1 with the structures that develop from them in Column 2. 6
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62) Column 1: endoderm Column 2: epithelial lining of the GI tract, except the oral cavity and the anal canal Answer: epithelial lining of the GI tract, except the oral cavity and the anal canal Topic: EMBRYONIC AND FETAL DEVELOPMENT 63) Column 1: mesoderm Column 2: endothelium of blood vessels and lymphatic vessels Answer: endothelium of blood vessels and lymphatic vessels Topic: EMBRYONIC AND FETAL DEVELOPMENT 64) Column 1: ectoderm Column 2: all nervous tissue Answer: all nervous tissue Topic: EMBRYONIC AND FETAL DEVELOPMENT 65) Column 1: endoderm Column 2: epithelial lining of the urinary bladder, gallbladder and liver Answer: epithelial lining of the urinary bladder, gallbladder and liver Topic: EMBRYONIC AND FETAL DEVELOPMENT 66) Column 1: mesoderm Column 2: dermis of skin Answer: dermis of skin Topic: EMBRYONIC AND FETAL DEVELOPMENT 67) Column 1: ectoderm Column 2: epidermis of skin Answer: epidermis of skin Topic: EMBRYONIC AND FETAL DEVELOPMENT 70) Column 1: ectoderm Column 2: lens, cornea and internal eye muscles Answer: lens, cornea and internal eye muscles Topic: EMBRYONIC AND FETAL DEVELOPMENT Match the events of fetal development in Column 2 with the numbers in Column 1 that indicate the end of the month in which the events occur. 71) Column 1: 1 Column 2: heart forms and begins to beat Answer: heart forms and begins to beat Topic: EMBRYONIC AND FETAL DEVELOPMENT 72) Column 1: 2 Column 2: ossification begins Answer: ossification begins 7
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Topic: EMBRYONIC AND FETAL DEVELOPMENT 74) Column 1: 4 Column 2: hair appears on head and articulations begin to form Answer: hair appears on head and articulations begin to form Topic: EMBRYONIC AND FETAL DEVELOPMENT 75) Column 1: 5 Column 2: mother first feels fetal movements Answer: mother first feels fetal movements Topic: EMBRYONIC AND FETAL DEVELOPMENT 76) Column 1: 6 Column 2: type II alveolar cells begin to produce surfactant Answer: type II alveolar cells begin to produce surfactant Topic: EMBRYONIC AND FETAL DEVELOPMENT 77) Column 1: 7 Column 2: fetus is capable of survival if premature birth occurs at this stage Answer: fetus is capable of survival if premature birth occurs at this stage Topic: EMBRYONIC AND FETAL DEVELOPMENT 78) Column 1: 8 Column 2: testes of male fetus descend into scrotum Answer: testes of male fetus descend into scrotum Topic: EMBRYONIC AND FETAL DEVELOPMENT
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