QuestionAugust 14, 2025

Describe the production of sperm. Discuss the differences between the 3 trimesters of fetal development.

Describe the production of sperm. Discuss the differences between the 3 trimesters of fetal development.
Describe the production of sperm.
Discuss the differences between the 3 trimesters of fetal development.

Solution
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Answer

Spermatogenesis occurs in the testes; fetal development progresses from organ formation in the first trimester to growth and maturation in the second and third trimesters. Explanation 1. Sperm Production (Spermatogenesis) Spermatogenesis occurs in the seminiferous tubules of the testes. It involves the differentiation of spermatogonia into mature spermatozoa through mitosis, meiosis, and spermiogenesis. 2. First Trimester of Fetal Development The first trimester (weeks 1-12) involves organogenesis, where major organs begin to form. The embryo develops into a fetus by the end of this period. 3. Second Trimester of Fetal Development The second trimester (weeks 13-26) is characterized by rapid growth, development of facial features, and movement. The fetus becomes more active, and the mother may start to feel fetal movements. 4. Third Trimester of Fetal Development The third trimester (weeks 27-40) focuses on maturation and preparation for birth. The fetus gains weight, and vital organs like the lungs mature. The fetus assumes a head-down position in preparation for delivery.

Explanation

1. Sperm Production (Spermatogenesis)<br /> Spermatogenesis occurs in the seminiferous tubules of the testes. It involves the differentiation of spermatogonia into mature spermatozoa through mitosis, meiosis, and spermiogenesis.<br /><br />2. First Trimester of Fetal Development<br /> The first trimester (weeks 1-12) involves organogenesis, where major organs begin to form. The embryo develops into a fetus by the end of this period.<br /><br />3. Second Trimester of Fetal Development<br /> The second trimester (weeks 13-26) is characterized by rapid growth, development of facial features, and movement. The fetus becomes more active, and the mother may start to feel fetal movements.<br /><br />4. Third Trimester of Fetal Development<br /> The third trimester (weeks 27-40) focuses on maturation and preparation for birth. The fetus gains weight, and vital organs like the lungs mature. The fetus assumes a head-down position in preparation for delivery.
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