Chapter 6 Human Sexuality

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What's More Concept Mapping: Fill-in the concept map of egg release (start with the ovary). Use the following statements to guide you in answering the activity. Ovary Ovary Releases an egg in a process called The exact location of egg cell to meet the sperm. The fertilized egg will be deposited to the If the egg is not fertilized, the uterine Walls lough off and blood comes out in the process called If egg is fertilized it is called

In a newly fertilized egg, the vitelline layer O secretes hormones that enhance steroidogenesis by the ovary O reduces the loss of water from the egg and prevents desiccation O provides most of the nutrients used by the zygote lifts away from the egg and hardens to form a fertilization envelope O opens the egg's nuclear membrane to allow haploid sperm DNA to enter

About sexual reproduction: Involves one parent where a new individual develops being an exact copy of the parent also known as clone and no gamete or reproductive organ is involved O Only the mother contributes with the oocyte or egg where a new individual is formed with an exact copy of the mother's genes O Involves two parents, where each parent contributes with special germ cells or gametes that once united in fertilization, a new individual develops receiving genetic material from both parents and the product of gene recombination O Involves the father only which contributes with special germ cells or spermatozoa that once fertilized, a new individual develops receiving genetic material from the father and the product of gene recombination Next » « Previous

Which of the following does NOT aid the sperm in fertilization? * Increased mitochondria Cytoplasmic bridge Acrosomes Flagellum development Hyaluronidase & protease

Which of the following is not required for internal fertilization? sperm receptacle behavioral interaction internal development of the embryo O copulatory organ O All of the above are necessary for internal fertilization.

Match the term with the correct description.   carries deoxygenated and waste-filled blood away from developing baby     carries highly oxygenated and nutrient-filled blood back toward developing baby     houses 1 vein and 2 arteries and is the lifeline for the developing baby and its connection to its mother     the process by which the nucleus of a sperm fuses with the nucleus within an egg to form the first diploid somatic cell of a new organism     fetal development stage when fertilization takes place      the fetal developmental stage when placenta forms, the heart begins to beat and sex organs start to differ based on sex chromosome within fertilizing sperm (X or Y)     the longest stage of fetal development in which organs systems develop so baby can survive outside of the mother's uterus     two developing zygotes each originating from both separate sperm and egg combinations; each have different DNA combinations…

One role of the acrosomal reaction is: O Fusing the sperm membrane with the oocyte membrane O Degradation of the zona pellucida O Avoid polyspermy O Compaction of sperm DNA O Hypermotility of sperm

In the fallopian tube, an egg cell is moved toward the uterus by?

There are 6 major events in fertilization. Discuss the process of fertilization or conception, with emphasis on the sperm-egg interaction.  Proteins on the sperm plasma membrane bind to ZP3 molecules within the zona pellucida of the egg. Why is this event important?   Zona binding triggers the acrosome reaction, in which the sperm plasma membrane fuses with the outer acrosomal membrane, causing exocytosis of acrosomal contents. What is in the "acrosomal content"? Acrosomal enzymes begin to dissolve a hole in the zona pellucida. This enzymatic degradation, accompanied by rapid sperm tail beating, moves the sperm through the zona. Where does the sperm intend to reach?

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Open with reproductive function the nervous system with the endocrine system WHAT DETECTS WHAT IS THE HOW IS THE WHAT CHANGE? "MESSENGER" MESSAGE RESPONDS? (EFFECTOR) (receptor) CARRIED? Sensory Electrical Nerves-very fast A muscle or a cell receptors impulse NERVOUS SYSTEM Gland (via Chemical Bloodstream - ENDOCRINE SYSTEM One or more organs brain and (hormone) slower bloodstream) Endocrine system is in control of the body mechanisms that slowly takes place, unlike the nervous system that controls rapid body processes. Page 38 1 46 + K 6 N f docrine-System.pptx Comparing SYNTHESIZ E E

In stage 1 of labor, during active phase the cervix dilates? 4-7 cm 1-3 cm 8-10 cm 7-10 cm

TRUE OF FALSE Primary spermatocytes are diploid in number like spermatogonia while spermatocytes are haploid in number. Spermatogenesis is the final stage of reproductive cell division by which there is the development of haploid spermatids into sperm. Spermiation is the event by which sperm are released from their connections to Sertoli cells. Digestive secretions from the small intestine complete the digestion of carbohydrates, proteins, and lipids. Bacteria in the large intestines produce minerals and nucleic acids.

Organ rudiments of the 72-hr chick embryo and their functions organ rudiment identity function A     B     C     D     E

A blastocyst is about 2 weeks old. Implantation is important at this stage because the O O cells need an anchored place to divide Q 9 of 15 the embryo develops sex characteristics using cells from the implant wall neural tube forms from the wall of the implantation cells need a means of receiving nutrition

+Describe the process of implantation of the embryo, what cells are involved and their roles. +Describe placentation

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