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A&P Ch29
Reproductive System
| Question | Answer |
|---|---|
| How many lobules are there within a testis? | 200-300 |
| How many seminiferous tubules are found in each of the lobules? | 1-3 |
| Role of testosterone? | Development of the male reproductive system, Increased muscular and skeletal growth, Spermatogenesis |
| How many sperm cells are produced per day? | About 300 million |
| These structures lie posterior to the bladder and anterior to the rectum and secrete an alkaline, fructose filled fluid | Seminal vesicles |
| This structure is composed of three cylindrical masses of erectile tissue each surrounded by a fibrous tissue | Penis |
| How much semen is typically ejaculated and how many sperm per ml? | 2.5 mL of semen is typically ejaculated, with 50-150 million sperm per mL |
| At puberty, how many primary oocytes remain in each of a female's ovaries? | About 40,000 |
| The milk-secreting components of the mammary glands in the breasts are called | Alveoli |
| ________ hormone secreted by the ____________ controls the ovarian and uterine cycles | GnRH, hypothalamus |
| The structure protects and regulates the temperature of the testes is the | Scrotum |
| This structure is the site of sperm production | Seminiferous tubules |
| These cells may eventually become spermatozoa | Spermatogenic cells |
| These cells secrete testosterone | Leydig cells |
| This hormone stimulates Leydig cells to secrete testosterone | LH |
| This hormone promotes spermatogenesis | Testosterone |
| What is the function of the epididymis? | Sperm maturation |
| The union of the duct from the seminal vesicle and the ampulla of the vas deferens form this | Ejaculatory duct |
| These pea-sized structures are located inferior to the prostate on other side of the urethra | Bulbourethral glands |
| At birth, how many primary oocytes are found in each of the female ovaries? | About 200,000 – 2,000,000 |
| Which hormones do the ovaries produce? | Estrogen and progesterone |
| This is the site of fertilization | Uterine tubes |
| This is the portion of the uterus that opens into the vagina | Cervix |
| Anterior to the vagina and urethral openings is the | Mons pubis |
| The para-urethral glands on either side of the urethral orifice secrete | Mucus |
| Which hormone stimulates milk ejection? | Oxytocin |
| This hormone triggers ovulation | LH |
| This hormone is secreted by the corpus luteum after ovulation | Progesterone |
| This is the uterine phase when the endometrium is growing rapidly | Proliferative phase |
| This is the ovarian phase between ovulation and the onset of the next menstruation | Postovulatory phase |
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