All the following are functions of the ovaries EXCEPT:
A. Production of eggs
B. Correct! Maintaining the development of a fetus
C. Production of
... [Show More] estrogen
D. Development of the corpus luteum
Which of the following statements is true concerning oogenesis?
A. It begins at the time of puberty.
B. Correct! The primary oocyte divides to produce a secondary oocyte.
C. Each primary oocyte produces in two to three mature ova.
D. The first polar body maintains all the cytoplasm.
E. B&C are true
Ovulation occurs when an egg is released from the ______________ .
Ovarian follicle
Name the specific region of the reproductive system highlighted in blue below (also indicated by the arrow).
Fimbriae (infundibulum)
This layer of the uterus contracts during labor.
A. Endometrium
B. Mucosal coat
C. Perimetrium
D. Correct! Myometrium
E. Serous coat
Which of the following statements is false concerning the vagina?
A. Correct! The fundus is made of elastic fibers, blood vessels, lymph vessels and nerves.
B. The wetness and moisture of the surface is achieved by mucous from the cervix.
C. The elastic fibers give the vaginal wall elasticity.
D. The mucosal lining can extend.
Describe the purpose of the cervix prior to ovulation.
Just prior to ovulation, the cervix swells, softens and secretes mucus allowing sperm better access to and viability within the uterus.
Label the regions of the reproductive system below: (A-C)
A: Prepuce
B: Urethral orifice
C: Vestibule
True or False: Each mammary gland contains 12- 24 lobules.
True
True or False: Milk is not produced during pregnancy because of the production of estrogen and progesterone.
True
Blood tests indicate that progesterone and estrogen levels are both increased. Your patient is most likely in what phase of the female uterine cycle?
A. Menstrual phase
B. Proliferative phase
C. Correct! Secretory phase
D. Luteal phase
E. Follicular phase
Which of the following is false concerning the organs of the male reproductive system?
A. The epididymis is the site of sperm maturation.
B. The vas deferens travels through the inguinal canal inside the abdomen.
C. Correct! One produced, sperm travel to the seminal vesicles for maturation.
D. The epididymis is located on the posterior-lateral portion of the testis.
E. The testes function to produce sperm.
The ____________connects the seminal vesicle with the urethra to allow sperm to exit the body.
Ejaculatory duct
Match the gland/organ with the best description(s) A-F. Select all that apply.
1. Seminal Vesicles 2. Prostate Gland3. Bulbourethral glands4. Testes5. Anterior Pituitary
A. First to secrete during ejaculation B. Produces FSH C. Produces sperm D. Secretes fructose E. Secretes alkaline fluid F. Produces prostaglandins G. Secretes acidic fluid
Seminal Vesicles: D, F --fructose, prostaglandins
Prostate Gland: E --alkaline fluid
Bulbourethral glands: A, E --alkaline fluid, first secretion
Testes: C --produces sperm
Anterior Pituitary: B - -FSH
Which of the following is true concerning spermatogenesis?
A. Production of sperm takes 20 days.
B. Spermatogenesis is complete at the time of birth.
C. Males have all the sperm at birth that will be made during their lifetime.
D. Correct! Each primary spermatocyte produces four viable gametes.
E. Each gamete has a total of 46 chromosomes.
Label the regions of reproductive system below: (A-E). To receive full credit you must name specific regions.
A: Vas Deferens
B: Seminal Vesicles
C: Ejaculatory Duct
D: Prostate gland
E: Bulbourethral gland
Name and discuss the purpose of the region of sperm indicated by the arrow in the figure below.
The head is almost entirely nucleus containing the cell DNA with a crown called the acrosome which contains enzymes that breakdown the membrane of the egg to allow the sperm to penetrate.
Discuss in detail the action of sperm needed to fertilize an egg.
The egg releases chemicals that attract the sperm. Sperm cells release enzymes that break apart the corona radiata, follicle cells surrounding the egg. Once this is accomplished, more sperm release acrosomal enzymes that make a hole in the membrane of the egg, allowing one sperm cell to combine with the egg. When the union of egg and one sperm occurs, the membrane of the egg instantly chemically changes, preventing other sperm from penetrating the egg.
Which of the following is true concerning human cells?
A. Haploid cells contain the full number of chromosomes (46).
B. Diploid cells contain half the number of chromosomes (23).
Correct! C. Gamete cells are haploid cells.
D. A zygote has 23 chromosomes.
E. A&B are true
Discuss the supportive cells of the blastocyst and their purpose during pregnancy.
(The amnion, placenta and umbilical cord.) The amnion forms a sac filled with fluid to cushion and protect the fetus. The placenta is a temporary organ that carries out nutritive, respiratory, excretory and endocrine functions for the embryo. The baby continues to grow in the uterus with nutrition provided by the placenta for nine months until it is time for delivery. The umbilical cord attaches the embryo to the placenta.
Label each of the following as occurring during the: 1st trimester, 2nd trimester or 3rd trimester
1. Lungs fully mature: 3rd trimester
2. Lanugo develops: 2nd trimester
3. First fetal movements felt: 2nd trimester
4. Neurulation: 1st trimester
5. Testes descend to scrotum: 3rd trimester
Find the steps that correctly order neurulation:
A. Ectoderm→ neural crest → convergence → neural groove → brain
B. Endoderm→ neural groove → convergence → neural tube and neural crest
Correct! C. Ectoderm→ convergence→ neural fold → neural tube → spinal cord
D. Endoderm→ convergence→ neural crest → neural groove → spinal cord
Name and discuss the stage of labor that best describes the figure below:
The first stage, dilation of the cervix, is the time it takes for the mother’s cervix to dilate to ten centimeters. During this stage the uterus contracts, which pushes the baby’s head against the cervix causing it to dilate (widen). This stage of labor is the longest, lasting, on average 6-10 hours. Oxytocin is a hormone that is released from the posterior pituitary gland to stimulate contractions in the myometrium of the uterus. As contractions continue, oxytocin is increasingly released until the baby is born. [Show Less]