01. Biologia hedelmöitys, raskaus ja synnytys lisääntyminen lisääntyminen ihmisellä

Ihmisen lisääntyminen

loka 31, 2019 , , ,

Hu­man Emb­ryo (7th week of preg­nan­cy, 5th week p.o.); http://en.wiki­pe­dia.org/wiki/File:Tu­bal_Preg­nan­cy_with_emb­ryo.jpg

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OpenStax: ihmisen lisääntymisbiologia
Figure 27.2 Male Reproductive System

Figure 27.2 Male Reproductive System

  

Figure 27.4 Anatomy of the Testis

Figure 27.4 Anatomy of the Testis

  

Figure 27.5 Spermatogenesis

Figure 27.5 Spermatogenesis

  

Figure 27.6 Structure of Sperm

Figure 27.6 Structure of Sperm

  

Figure 27.8 Regulation of Testosterone Production

Figure 27.8 Regulation of Testosterone Production

  

Figure 27.9 Female Reproductive System

Figure 27.9 Female Reproductive System

  

Figure 27.11 Oogenesis

Figure 27.11 Oogenesis

  

Figure 27.12 Folliculogenesis

Figure 27.12 Folliculogenesis

  

Figure 27.13 Hormonal Regulation of Ovulation

Figure 27.13 Hormonal Regulation of Ovulation

  

Figure 27.14 Ovaries, Uterine Tubes, and Uterus

Figure 27.14 Ovaries, Uterine Tubes, and Uterus

  

Figure 27.15 Hormone Levels in Ovarian and Menstrual Cycles

Figure 27.15 Hormone Levels in Ovarian and Menstrual Cycles

  

Figure 27.16 Development of Cervical Cancer

Figure 27.16 Development of Cervical Cancer

  

Figure 28.2 Sperm and the Process of Fertilization

Figure 28.2 Sperm and the Process of Fertilization

  

Figure 28.3 IVF In vitro fertilization

Figure 28.3 IVF In vitro fertilization

  

Figure 28.4 Pre-Embryonic Cleavages

Figure 28.4 Pre-Embryonic Cleavages

  

Figure 28.5 Pre-Embryonic Development

Figure 28.5 Pre-Embryonic Development

  

Figure 28.6 Implantation

Figure 28.6 Implantation

  

Figure 28.7 Placenta Previa

Figure 28.7 Placenta Previa

  

Figure 28.8 Development of the Embryonic Disc

Figure 28.8 Development of the Embryonic Disc

  

Figure 28.9 Germ Layers

Figure 28.9 Germ Layers

  

Figure 28.10 Fates of Germ Layers in Embryo

Figure 28.10 Fates of Germ Layers in Embryo

  

Figure 28.11 Cross-Section of the Placenta

Figure 28.11 Cross-Section of the Placenta

  

Figure 28.14 Embryonic Folding

Figure 28.14 Embryonic Folding

  

Figure 28.16 Sexual Differentiation

Figure 28.16 Sexual Differentiation

  

Figure 28.17 Fetal Circulatory System

Figure 28.17 Fetal Circulatory System

  

Figure 28.18 Size of Uterus throughout Pregnancy

Figure 28.18 Size of Uterus throughout Pregnancy

  

Figure 28.20 Hormones Initiating Labor

Figure 28.20 Hormones Initiating Labor

  

OpenStax: ihmisen lisääntymisbiologia

  

Figure 28.22 Neonatal Circulatory System

Figure 28.22 Neonatal Circulatory System

  

Figure 28.23 Let-Down Reflex

Figure 28.23 Let-Down Reflex

  

Oocytes develop in (a) follicles, located in the ovary

Oocytes develop in (a) follicles, located in the ovary

  

Hormones control sperm production in a negative feedback system

Hormones control sperm production in a negative feedback system

  

Rising and falling hormone levels result in progression of the ovarian and menstrual cycles.

Rising and falling hormone levels result in progression of the ovarian and menstrual cycles.

  

n humans, fertilization occurs soon after the oocyte leaves the ovary. Implantation occurs eight or nine days later

n humans, fertilization occurs soon after the oocyte leaves the ovary. Implantation occurs eight or nine days later

  

The rearrangement of the cells in the mammalian blastula to two layers—the inner cell mass and the trophoblast—results in the formation of the blastocys

The rearrangement of the cells in the mammalian blastula to two layers—the inner cell mass and the trophoblast—results in the formation of the blastocys

  

The three germ layers give rise to different cell types in the animal body

The three germ layers give rise to different cell types in the animal body

  

The central region of the ectoderm forms the neural tube, which gives rise to the brain and the spinal cord.

The central region of the ectoderm forms the neural tube, which gives rise to the brain and the spinal cord.

  

Clker-Free-Vector-Images / Pixabay


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