BIO 241 1st EditionExam #6 Study Guide Lectures: 29 - 34Lecture 29 (April 10)Contraction of the cremaster results in:A. The scrotum becoming smaller.B. Erection, and then ejaculation.C. The testes being pulled closer to the body cavity.D. The movement of sperm from the scrotal region through the inguinal canal and into the body cavity.E. Secretion of the seminal fluids into the prostatic urethra.The blood vessels, nerves, lymphatics, and muscles that serve each testis form the body of the:A. Penis. D. Spermatic cord.B. Inguinal canal. E. Scrotum.C. Vas deferens.In passing from their site of production toward the penis, the correct order of ducts through which sperm pass is:A. Seminiferous tubules  rete testis  efferent ductules  ductus epididymis  ductus deferens B. Seminiferous tubules  efferent ductules  ductus deferens  rete testis  ductus epididymisC. Seminiferous tubules  ductus epididymis  efferent ductules  rete testis  ductus deferensD. Seminiferous tubules  rete testis  efferent ductules  ductus deferens  ductus epididymis.E. Seminiferous tubules  ductus epididymis  rete testis  ductus deferens  efferent ductulesSpermiogenesis results in:A. Genetically mature sperm. D. Two spermatogonia.B. Anatomically mature sperm. E. Four spermatids.C. Functionally mature sperm.Which of the following statements about spermatogenesis are true?1. A spermatogonium forms a primary spermatocytes without cell division.2. A primary spermatocyte forms secondary spermatocytes during the first meiotic division.3. A secondary spermatocytes gives rise to two spermatids during the second meiotic division.4. A spermatid gives rises to two spermatozoa.Which of the following cell types of spermatogenesis is not haploid (23 chromosomes, n instead of 2n)?A. Spermatids D. SpermatozoaB. Primary spermatocytes E. All of the above are haploid cell types.C. Secondary spermatocytes.In male reproduction, hormones are primarily responsible for:1. Development of the reproductive structures.2. Control of the sexual act (erection, emission, ejaculation)3. Influencing sexual behavior4. Secretion of seminal fluids during orgasmLecture 30 (April 13) A boy who has not yet passed through puberty sustains an injury to this anterior pituitary gland such that FSH is no longer secreted, but LH secretion remains normal. After he grows to maturity, one would expect that he would:1. Not develop secondary sex characteristics.2. Be impotent (unable to have an erection).3. Have impaired function of the interstitial endocrinocytes (Leydig cells).4. Be sterile.Semen is composed of:1. Spermatozoa 3. Prostate gland secretions2. Seminal vesicle secretions 4. Bulbourethral secretionsBulbuourethral gland Secretions buffer residual acidity of the male urethraProstate gland Surrounds the male urethra at the base of the bladderEpididymis Structure in which sperm are stored for functional maturationCorpus cavernosum Found in both males and femalesLabia minora Forms lateral walls of the vestibuleClitoris Female homolog of the male penisVagina Lined with stratified squamous epithelium, has rugae, no glandsIncreasing FSH Continuation of oogenesisIncreasin LH OvulationLecture 31 (April 15)Which of the following occurs after ovulation but before the next cycle begins?1. The endometrium enters its secretory phase.2. Menses begins immediately (within 1-2 days) if fertilization does not occur 3. The secretion of anterior pituitary gonadotropins is inhibited.4. The corpus luteum stimulates the next wave of follicles to begin developing.Which of the following statements concerning the menstrual cycle are true?1. FSH and LH directly promote development of the stratum functionalis.2. Estrogen is secreted by follicular cells during both the proliferative and secretory phases.3. Rising blood progesterone levels during the secretory phase stimulates the secretion of FSH necessary to start the next cycle.4. The corpus luteum is formed form remnants of the ruptured tertiary follicle.Which of the following phases or processes in the monthly female cycle occur at the same time?A. Maximal LH secretion and menstruationB. Maximal sex steroid production by the corpus luteum and menstruationC. Early follicular development and the secretory phase of the uterus.D. Regression and death of the corpus luteum and a decrease in sex steroid production.E. Ovulation and maximal progesterone secretion.A secondary oöcyte:A. Has completed both meiotic divisions and is ready to be fertilized.B. Has completed one meiotic division and ready to be fertilized.C. Is arrested in prophase I and cannot complete meiosis until it is fertilized.D. The second meiotic division results in two equally-sized oötids.E. Is described by none of the above.Decreasing estrogen and progesterone Intense vasoconstriction of the spiral arteriolesWhich of the following statements is true concerning the uterus?1. The narrow inferior portion is the cervix.2. The uterus is bound down in the pelvis by a fold of peritoneum.3. The functional layer of the endometrium is sloughed off during menstruation.4. The myometrium is a target for the hormone oxytocin.Vestibular glands Female homolog of the prostate glandLecture 32 (April 17)A. If the item on the left is greater than the item on the rightB. If the item on the right is greater than the item on the leftC. If the two items are equal or nearly equalA32. Number of spermatogonia available ----- Number of oögonia availableto a man at age 50 to a woman at age 50C33. Role of testosterone in formation of ----- Role of estrogen in formation ofmale secondary sex characteristics female secondary sex characteristicsC34. Rate of spermatogenesis in a ----- Rate of spermatogenesis in anormal 20 year old normal 40 year oldA35. FSH secretion in response to ----- FSH secretion in response tohigh blood estrogen (female) moderate blood estrogen (female)B36. Number of follicle cells in a ----- Number of follicle cells in aprimary follicle secondary follicleB37. Estrogen secretion from a ----- Estrogen secretion from asecondary follicle tertiary follicleA38. Endometrial ischemia when ----- Endometrial ischemia whenblood progesterone levels are low blood progesterone levels are highArousal, erection, emission, and ejaculation are mediated by a complex interplay between divisions of the:A. Central nervous system. D. Cranial nerves.B. Peripheral nervous system. E. Spinal nerves.C. Autonomic nervous