Animal Embryology: Module-I

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Questions and Answers

Match the following male reproductive structures with their function:

Prostate gland = Secretes fluid that nourishes and protects sperm Seminal vesicles = Produce a fluid rich in sugars that sperm use for energy Bulbourethral gland = Secretes a lubricating mucus that cleans and lubricates the urethra Vas deferens = Transports sperm from the epididymis to the ejaculatory duct

Match the following terms with the structure they describe:

Foreskin = Loose fold of skin covering the penis head. Urethral meatus = External opening of the urethra. External genitalia = External reproductive organs. Fimbriae = Finger-like projections surround the opening of the fallopian tube.

Match the following layers of the uterus with their description:

Trophoblast = Outer layer of cells that nourish and protect embryo. Endometrium = Inner lining where implantation occurs. Myometrium = Muscular middle layer responsible for contraction. Perimetrium = The outer layer of the uterus that provides protection.

Match each term with its description:

Gametogenesis = Process of producing gametes (sperm or egg cells). Menstrual cycle = Regular sequence of events involving the uterus, ovaries. Fertilization = The fusion of sperm and egg to form a zygote. Implantation = Attachment of the early embryo to the uterine lining. Signup and view all the answers

Match the structure with where it is found:

Sertoli cells = Found in seminiferous tubules of the testes. Leydig cells = Found next to seminiferous tubules. Granulosa cells = Found surrounding developing oocytes in ovaries. Phagocytes = Are a type of cell that protects the body by ingesting harmful particles, bacteria, and dead or dying cells. Signup and view all the answers

Match the following hormones with their primary function:

FSH = Stimulates the development of ovarian follicles. LH = Triggers ovulation and development of the corpus luteum. Progesterone = Maintains the uterine lining during pregnancy. hCG = Maintains corpus luteum during early pregnancy. Signup and view all the answers

Match the following functions with the extraembryonic membrane that performs it:

Amnion = Provides a fluid-filled cavity that protects the developing embryo. Chorion = Outermost membrane that contributes to placenta formation. Yolk sac = Provides early nourishment for the developing embryo. Allantois = Involved in waste storage and gas exchange in some animals. Signup and view all the answers

Match the following stages of development with their description:

Gastrulation = Formation of three primary germ layers: ectoderm, mesoderm, and endoderm. Neurulation = Formation of the neural tube, which develops into the brain/spinal cord. Cleavage = Rapid cell division without cell growth, resulting in smaller cells. Blastulation = Formation of a hollow ball of cells called the blastocyst. Signup and view all the answers

Match the following patterns of inheritance with their descriptions:

Epigenesis = Development results from successive differentiations and superimposed structures. Homolecithal = A small amount of yolk is evenly distributed. Telo Lecythal = Great amount of concentrated in the vegetal pole Meroblastic = Blastulas, with their yolk, have been used in studies. Signup and view all the answers

Match the following animal behavior with their descriptions:

Klinotaxis = The movement relative to the intensity of stimulation Chemotaxis = The movement directed toward or away from the chemical stimulus Rheotaxis = The movement against the water current. Anemotaxis = The movement directed toward the airflow Signup and view all the answers

Match the scientist with their contribution to the understanding of human biology:

Kingsley = Introduced the process of chirobronchota. Van Baer = Is considered father of modern embryology. Aristotle = The father of evolution. Harvey = Worked on blood circulation. Signup and view all the answers

Match the phases to their descriptions:

Implantation = The blastocyst fully embedded in the uterine wall. In Vitro Fertilization = Fertilization and development occur in the womb. Tubectomy = Removal of the uterus. Hysterectomy = The Fallopian tube is removed. Signup and view all the answers

Match to the types of people:

Orchidectomy = Can only use one hand. Amniocentesis = Used to collect amniotic fluid. Hermaphrodite = Has both female and male function. Signup and view all the answers

Match with the correct description:

Acryosome = Is a cytoplasmic structure. Infertility = A major impediment to people. Tonsils = Lymphatic organs are generally swollen. Hormones = Are not made from vitamins. Signup and view all the answers

What is the correct order?

Spermatids = Leads to sperm. Luteal Phase = Secretes both estrogen. Trophoblast = Outer cell. Trophic Phase = Helps to keep endometrium from shedding. Signup and view all the answers

Please put these in correct order:

Polar Body = First released from womb. Oogenesis = The development of the egg cells. Fetus = Developed completely. Hormones = Influence spermatogenesis. Signup and view all the answers

Match the terms with the descriptions:

Morula = Results from mitosis. Zygotes = Produce diploids. Amphimixis = Cell fusion. Placenta = Attaches to the uterus. Signup and view all the answers

Match with the phrases:

Gastrula = First sign of body axis is found here. Yolk = Storage in mammals. Gastrulation = Three cell types can be seen in mammals. Blastocel = Can grow. Signup and view all the answers

Pair the phases:

Spermatogenesis = Is used to make a sperm. Menses = Can lead to periods. Oocytes = Are not eggs. Sex Chromosomes = Does contain information of all sorts. Signup and view all the answers

Match each term with its function:

Ampullary- Isthmic junction = Fertilization point. Spermatogenesis = The process of sperm. Endothelium = The membrane of the human heart. Epididymis = Responsible for the passing of stool. Signup and view all the answers

Here are some terms to pair:

Hormone = Regulates the levels in the body. Pheromones = Are a signal to attract a mate. Gametes = Can be seen in the body. Estrogens = Develops the egg. Signup and view all the answers

Please put these in the right place:

Lutenizing = Is used to treat infertility. Spermatogenesis = Occurs in males. Oocytes = Occurs in females. Estrogens = Develops the female features. Signup and view all the answers

Match these reproductive components:

Amniotic = Protects the baby. Ectoderm = Is produced by a germ disk. Placenta = Transports materials. Parturition = The act of birth. Signup and view all the answers

Pair each with its meaning:

Gametogenesis = Produces sperm and eggs. Gastrula = Is produced by eggs. Steroid = Is from pregnancy. Oogenesis = To produce eggs. Signup and view all the answers

What the primary differences:

Meiosis division = Reduces sperm. Mitosis division = Produces growth. Polar Body = Used for sperm formation. Ectoderm = Outer layer of cells. Signup and view all the answers

What term can be described as the most accurate?

Oogenesis = Is the development of hormones. Coelom = Is the most important. Spermatids = Goes through meiosis. Fimbria = Collects the eggs after they leave ovary. Signup and view all the answers

How is the process known?

Vasectomy = Is used to prevent pregnancy. Follicle = For the transfer for pregnancy. Placenta = Is for blood flow only. Amnion = Is used to protect embryos. Signup and view all the answers

Can you put these in the correct pairs?:

Spermatogonial = Develops into the primary cell. Primary cells = Used to create other parts. Sertoli cells = For reproduction. Primary Oocyte = Develops. Signup and view all the answers

Help pair each process?

Spermatogonia = Meiosis. Atretic = Fats. Trophoblast = Protects the body. Polar Body = Only seen in pregnancy. Signup and view all the answers

Pair time with their description

Spermatogenesis = Helps the sperm. Ectoderm = Creates the skin. Placenta = Forms at three months. Lethal Dose = Is at 6 months. Signup and view all the answers

What do you do with these procedures?

Placenta = Transfers to mom. Sertoli = Sperm only. Trophoblast = Outer skin. Ectoderm = Inner skin. Signup and view all the answers

Can you explain these stages:

Mesenchyme = Can form here. Somatic = Connects to blood. Chordate = Connects in the body. Germaline = Connects in the arms. Signup and view all the answers

Flashcards

Prostatic sac

In male rabbits, it indicates the part of the Müllerian duct.

Testicles permanently in the abdomen

The condition where testicles remain permanently in the abdominal cavity.