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