Download Exam 3 Practice Exam

AnS SI 214 Practice Exam 3
Female Reproduction, Male Reproduction, Endocrine Systems
Monday, 3/29 , 7pm
Select the best answer choice in the questions below.
1)How many viable ova are formed from a single oogonia?
A) one
B) two
C) three
D) four
2) Meiosis in the female is completed:
A) before birth
B) after birth
C) at ovulation
D) after fertilization
3) Which of the following is TRUE?
A) non-water soluble hormones bind to receptors on cell membranes
B) water-soluble hormones bind to receptors in the cell nucleus
C) hormones such as steroids and T3 are able to affect nuclear function and gene transcription
D) GH and prolactin cause molecular synthesis by directly acting on mitochondria and activating mRNA synthesis
4) Menopause is characterized by all of these except:
A) thinner vaginal walls
B) rising blood cholesterol
C) hot flashes
D) lower risk of osteoporosis
5) The level of this hormone rises sharply just prior to ovulation:
A) FSH
B) LH
C) estrogen
D) progesterone
6) Sperm complete the maturation process and are stored in the:
A) seminiferous tubules
B) caput epididymis
C) vas deferens
D) cauda epididymis
7) This hormone directly causes the endometrium to thicken after during metestrus:
A) progesterone
B) GnRH
C) LH
D) FSH
8) Which of the following is a hypothalamic hormone which stimulates certain anterior pituitary cells to produce gonadotropins?
A) GHRH
B) LH
C) FSH
D) GnRH
9) Which phase of the uterine cycle ends with a rise in estrogen and ovulation?
A) proliferative phase
B) menstruation
C) secretory phase
D) premenstrual phase
10) LH stimulates the interstitial cells to produce ______.
A) inhibin
B) estrogen
C) androgens
D) progesterone
11) Which of the following is released from the posterior pituitary gland?
A) growth hormone
B) prolactin
C) antidiuretic hormone
D) follicle stimulating hormone
12) Which of the following are incorrectly matched?
A) ovary : mesovarium
B) uterus : mesouterus
C) oviduct : mesosalpinx
D) salpinx : mesotubarium
13) Pituitary hypersecretion in adulthood will result in this disease:
A) diabetes mellitus
B) diabetes insipidus
C) myxedema
D) acromegaly
14) Which of the following is not an important component of the part of the follicular phase?
A) decrease in FSH secretion by the pituitary
B) increase in FSH receptors formed by the graafian follicle
C) continued increase in estrogen secretion by the developing graafian follicle
D) oocyte completes meiosis I to become a primary oocyte during the preovulatory phase
15) Which gland secretes calcitonin and a hormone that stimulates ATP production?
A) pineal gland
B) thymus
C) thyroid gland
D) adrenal gland
16) Which of the following stages of the menstrual cycle are correctly matched to their events?
A) end of luteal: rising levels of P4, rising levels of PGF2a , regressing corpus luteum
B) beginning of follicular: high P4 levels, initiation of uterine growth and vascularization
C) end of follicular: negative feedback of E2 in the brain switches to positive feedback, emergence of a tertiary follicle occurs
D) beginning of luteal: high E2 levels, LH spike, increase in FSH, histotroph secretion
17) The two-cell theory includes all of the following concepts EXCEPT
A) granulosa cells have high levels of FSH receptors
B) theca interna cells produce testosterone
C) LH allows conversion of testosterone to estrogen
D) granulosa cells have testosterone receptors
18) Which is true of type I diabetes mellitus?
A) make cardiovascular problems less likely
B) due to an autoimmune response
C) can often be controlled by diet and exercise alone
D) usually appears first when a person is older
E) never causes blindness
19) Upon undergoing spermiogenesis, which duct do spermatozoa enter first?
A) rete testis
B) efferent ductules
C) caput epididymis
D) seminiferous tubules
20) The most correct route for the sperm from the seminiferous tubules to the outside is:
A) epididymis > ductus deferens > ejaculatory duct > ampulla > urethra
B) epididymis > ductus deferens > ampulla > ejaculatory duct > urethra
C) ductus deferens > epididymis > ampulla > ejaculatory duct > urethra
D) ductus deferens > epididymis > urethra > ampulla > ejaculatory duct
E) ejaculatory duct > ductus deferens > epididymis > ampulla > urethra
21) Mares differ from other domestic species in that they
A) ovulate a secondary oocyte
B) posses a suburethral diverticulum
C) ovulate from the ovulation fossa of their inverted cortex
D) all of the above
22) Which of the following is not an important pathway of control between endocrine glands?
A) pituitary-gonadal axis
B) pituitary-thyroid axis
C) pituitary-adrenal axis
D) pituitary-pineal axis
23) An increase in triiodothyronine concentrations would have all of the following effects except:
A) increasing sodium/potassium pump activity
B) rise in oxygen consumption
C) greater heat production
D) more mitochondrial enzymes produced
E) enhanced thyroid stimulating hormone production
24) Spermiogenesis produces:
A) immature sperm
B) viable sperm
C) spermatids
D) spermatozoa
25) Pheromone detection by the male is accomplished with the involvement of what structure?
A) vestibular glands
B) vomeronasal organ
C) filliform appendage
D) chondral fossa
Essay Topics
Below are 8 sample essay questions. For each, draft the response you would provide on an actual exam. Use key words and
topic sentences to make an outline of a potential essay. Make sure to draw any diagrams required. Note: Most of these
questions can most easily be answered with a schematic representation accompanied by brief descriptions of the drawn
elements. In other words: if it helps – DRAW A PICTURE.
Endocrine System.
1) Trace the events involved in the synthesis, release and hormonal action of T3 and T4. Include a brief discussion of
secretory disorders involved with these hormones.
2) Describe the effects of GH on the body, the feedback mechanisms involved with its production, and any associated
disorders.
3) Explain the body's regulation of blood sugar levels. Develop into a discussion of type I and II diabetes mellitus.
4) Trace the pathways involved in cell signal transduction in response to both hydrophilic and hydrophobic hormones.
Reproductive System.
1) Describe the process of sex differentiation in mammals.
2) Outline the hormonal controls involved in the regulation of the menstrual cycle, beginning with attainment of puberty.
Note hormone origins (production stimuli), production sites and target cells as well as tissue effects and feedback systems.
3) Trace the fluctuations of hormone levels during the stages of the estrous cycle. Name each stage, and connect hormone
levels to physical changes on the ovary and uterus. Be sure to name the stages of both cycles.
4) Describe the hormones and feedback systems involved in the regulation of spermatogenesis (blood-testis axis) and
compare this to the two-cell theory in females.
Additional questions for your consideration.
Due to time constraints, the following questions will not be discussed during your review session. However, it would be
beneficial for you to have control of the information they cover. The answers can be found directly in your slide series.
More than likely, the questions we DO go over in review will help you answer at least one of the essay questions per unit on
the exam. These questions were written to call your attention to other important concepts that are slightly less likely to
make it into your exam essay pool, but will be beneficial for multiple choice study.
1) List 5 of the 8 functions of the female reproductive system. Be sure to include a brief description of the organs and
hormones involved.
2) Be able to identify hormones, targets and feedback mechanisms of all hormones covered in lecture (hopefully you filled
out the worksheet posted at the very beginning of the unit).
3) IF covered in lecture on Monday, be familiar with differences of reproductive physiology of male and female domestic
animals (horse v. sow v. cow; ram v. stallion v. boar).
4) If covered in lecture on Monday, understand differences between menstrual and estrous cycles.
Any additional suggestions will be mentioned in the exam review Monday.