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Lab Quiz 8
A&P II Reproductive System and Human Development
Terms in this set (44)
Produces sperm and testosterone
Secretes slightly alkaline substances with anticoagulants
Produces alkaline secretion with nutrients and prostaglandins
Secretes mucus to lubricate glans penis
Stores sperm; moves sperm to the ejaculatory duct
Transports semen and urine out of the penis
Stores sperm; moves sperm to the ductus deferens
Houses developing embryo/fetus
Greater vestibular gland:
Secretes mucus to lubricate vaginal opening
Moves oocyte or fertilized ovum toward uterus
Recess containing external openings of vagina and urethra
result from meiosis I
undifferentiated sperm stem cells
spermatids transform into spermatozoa
foundation of the tubule wall
cell that has begun the process of meiosis
process of sperm production
sperm production site
Ø THE FIRST STAGE OF MEIOSIS:
Prophase I, Metaphase I, Anaphase I, Telophase & Cytokinesis
Ø THE SECOND STAGE OF MEIOSIS:
Prophase II, Metaphase II, Anaphase II , Telophase II & Cytokinesis
Homologous chromosomes align at the equator during _______.
Synapsis and crossing over occur during _____.
The process of spermiogenesis begins within the testis and continues to occur within the ______.
Which of the following contain diploid chromosomes?
The acrosome and nucleus of the sperm cell make up the __________.
The remnant of a ruptured follicle that secretes progesterone and some estrogen is called the __________.
The ovarian cycle is regulated by __________.
LH and FSH
Ovulation typically occurs around day __________.
NOTES: Endometrial tissue is typically found on organs close to the uterus such as the uterine tubes, ovaries, pelvis, vagina, urinary bladder, or even large intestine.
The stratum functionalis is the portion of the endometrium that grows and thickens each month.
NOTES: Progesterone prevents ovulation and follicular development.
GnRH release triggers the release of follicle-stimulating hormone (FSH), which stimulates follicle maturation and the release of estrogen. Estrogen levels increase to trigger the release of luteinizing hormone (LH), which prevents ovulation. If the follicle doesn't develop, estrogen isn't released, and LH is prevented from triggering ovulation.
Fertilization typically occurs in the __________.
Cleavage produces a solid ball of cells (blastomeres) known as the __________.
Bones and muscles develop from the __________.
The brain develops from the __________.
The __________ forms the embryonic portion of the placenta.
The __________ is the site of early blood cell formation in an embryo.
During month __________, the beginning of ossification occurs.
During month __________, an audible heartbeat can be detected.
Labor & Delivery to Afterbirth; Order of events (8 steps)
1) Contractions begin and the cervix begins to dilate.
2) Water breaks(occurs naturally in most cases).
3) Cervix is fully dilated to 10 centimeters.
4) Expulsion stage begins.
5) Crowning occurs.
6) Delivery of the newborn takes place.
7) Umbilical cord is clamped and cut.
8) Contractions continue, and the after birth is delivered.
The ectoderm layer forms the spinal cord and brain. The mesoderm forms the skeleton. During which trimester would a congenital malformation such as spina bifida form?
Spina bifida would develop during the first trimester.
NOTES: Fertilization usually occurs in the uterine tube.
The chorion, an embryonic membrane, and the endometrium of the uterus will form the placenta. The implanted embryo will continue to develop and grow, which will cause the uterine tubes to rupture and can cause significant blood loss.
NOTES: The process of rapid mitosis is known as cleavage.
Identical twins are formed early in pre-embryonic development when the zygote or an early cell splits off and continues to develop on its own. This forms a new cloned organism, or identical twin. Fraternal twins result from fertilization of additional eggs with additional sperm.
When do the embryonic and fetal periods occur? When is the embryonic heartbeat detected?
The embryonic period occurs during weeks 3 to 8, while the fetal period is from week 8 through delivery. The heart forms early in embryonic development and starts beating by week 4; however, it can't be heard with a stethoscope until the fourth month.
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