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reprodution system
Human Anatomy Physiology
| Question | Answer |
|---|---|
| Once gastrulation has been completed | Organogenesis |
| The formation of body systems, begins. Its first event is the formation of a dorsal rodlike thickening of mesodern called the | Nortochord |
| which appears immediatley deep to the former | Primitive streak |
| and establishes the longitudinal axis of the embryo. This is quickly followed by the process called | Neurulation |
| which leads to the formation of the nervous system this process begins as the | Ectoderm |
| lying superior to the notochord is induced to thicken and then to fold and detach as the neural tube. this is quickly followed by the specialization of the | Endoderm |
| Early differentiation of the mesoderm is forecast by its division into three regions | Intermediate mesoderm Lateral plate mesodermsomites |
| The limb buds and parietal serosa are formed by the somatic mesoderm part of the | lateral plate mesoderm |
| Where as the cardiovascular system form from the splanchnic layer. The gonads arise from the | Intermediate mesoderm |
| Part of the blastocyst that forms the embryonic body | Inner cell mass |
| Formed by the delamination of endodermal cells ventral sac | Yolk sac |
| Site of respiratory exchange | Placenta |
| Attaches the embryo placenta | Allantois Umbilical cord |
| Finger like projections of the trophoblast that are invaded by extraebryonic mesodern | Chorionic villi |
| After thre months the source of estrogen and progesteronne during pregnancy | Placenta |
| The organ that delivers nutrients to and disposes of waste for the fetus | Placenta |
| Projection abutting the yolk sac that serves as a depository for wastes in animals that form large yolked egs | Allantois |
| Tissue eroded during implantation | Endometrium |
| A fertilized egg | Zgote |
| Swollen Ovum and sperm nuclei | Pronuclei |
| Process during which a sperm becomes capable of undergoing the acrosomal reaction | Capacitation |
| Release of digestive enzymes by sperm in the immediate vicinity of oocyte | Acrosomal reaction |
| Term applied to the developing infant from fertlization to the end of the eight week after fertilization | Embryo and conceptus |
| Fusion of the ovum and sperm nuclei | Fertilization |
| Cells resulting from cleavage | Blastomeres |
| The one sperm per oocyte condition | Monospermy |
| Period of rapid mitotic cell division that results in cells with a high surface to volume ratio | Cleavage |
| A consequence of syncytiotrophoblast activity during which endometrial cells are digested | Implantation |
| Event that constitutes a block to polyspermy | Cortical reaction |
| Term appliied to the developing infant after the eight week | Fetus |
| Initiated by rising levels of ionic calcium within the oocyte cytoplasm | Cortical reaction |
| Helps sperm locate an ovulated oocyte | Olfactory receptors |
| Marked by exacerbations and remiissions | Gental herpes |
| Its destructive tertiary lesions are called gummas | Syphilis |
| Most common symptom in males is urthritis and penile drip may be asymptomatic in females | Genital herpes |
| Not recognized as a health problem until the 19970's accounts for 25% to 50% of all pelvic inflammatory disease | Chlamydia |
| Congeniital forms can cause severe fetalmalformations | Genital herpes |
| Newborns of infected mothers may have conjuctivitis and respiratory tract infection | Chlamydia |
| Like AIDS a viral rather than a bacterial disease. | Genital Herpes |
| Only diagnosed by cell culture techniques treated with tetracycline | Chlamydia |
| Disease rountinely treated with penicillin | Syphilis |
| Typically caused by human papilloma virus diffrent strains linked to invasive cervical cancer | Genital Herpes |
| Absense causes the spiral arteries of the endometrium to go into spasms and kink and the endometrium to slough off | Estrogen Progesterone |
| Causes the endometrial glands to begin secreting nutrients | Progesterone |
| The endometrium is repaired and grows thick and velvety | Estrogen |
| Maintains the myometrium in an inactive state if implantation of an embryo has occured | Progesterone |
| Stimulates gland formatiion in the endometrium | Estrogen |
| Responsible for the secondary sex characteristics of females | Estrogen |
| Causes the cervical mucus to become viscous | Progesterone |
| Organ that delivers semen to female reproductive tract | Penis |
| Site of sperm and testosterone production | testes |
| Passageway for conveying sperm from the epididymis to the ejaculatory duct | Ductus deferen |
| Conveys both sperm and urine down the length of the penis | Urethra |
| Organs that contribute to the formation of semen | bulborethral glands prostate seminal vesicle testes |
| External skin sac that houses the testes | Scrotum |
| Tubular storage site for sperm hugs the lateral aspect of the testes | Epididymis |
| Cuff of the skin encircling the glans penis | Prepuce |
| Surrounds the urethra at the base of the bladder produces a milky slightly acid fluid | Prostate |
| Produces over half of seminal fluid | Seminal vesicles |
| Empties a lubricating mucus into urethra | Bulborethral glands |
| Conective tissue sheath enclosing the ductus deferens blood vessels and nerves | Spermatic cord |
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