Term
| The _____ are where sperm cells and male sex hormones are formed. |
|
Definition
|
|
Term
| The testes are held in a sac-like _____. |
|
Definition
|
|
Term
| Why does the scrotum hold the testes outside of the body? |
|
Definition
| Because sperm production requires temperatures below normal body temp. |
|
|
Term
| Which testis usually hangs lower? |
|
Definition
|
|
Term
| The mechanism to control testic temp involes the ______ ______. |
|
Definition
|
|
Term
| The spermatic cord contains the ____ ____. |
|
Definition
|
|
Term
| The cremaster muscles contract when the temp is ____. |
|
Definition
|
|
Term
| The sperm cells are stored and matured in the _____. |
|
Definition
|
|
Term
| How long is the coiled tube like structure inside of the epididymis? |
|
Definition
|
|
Term
| Where does the vas deferens begin? |
|
Definition
| At the bottom of the epididymis where the tube takes a sharp turn |
|
|
Term
| Where does the vas deferens travel? |
|
Definition
| Thru the spermatic cord, to the abdominal cavity, over the urinary bladder, descends between bladder and rectum, then to the posterior surface of the prostate |
|
|
Term
| Where is the seminal vesicle located? |
|
Definition
| Behind the bladder and prostate |
|
|
Term
| The ____ _____ produces a thin fluid with a alkaline pH and concentration of fructose, about 60% of volume of semen. |
|
Definition
|
|
Term
| The seminal vesicle and vas deferens unite and form the ___ ____ ____. |
|
Definition
|
|
Term
|
Definition
-size of peas
-below the prostate off the root of the penis
-secret a mucus liquid and they begin to secrete during sexual arousal, before ejaculation |
|
|
Term
| Why do the bulbourethral glands secrete before ejaculation? |
|
Definition
| To cleanse the urethra and lubricate |
|
|
Term
| Spermatogenesis occurs within the ___ ___ of the testes. |
|
Definition
|
|
Term
| In the walls of seminiferous tubes what are the 2 cells? |
|
Definition
| spermatogonia and sertoli's cells |
|
|
Term
|
Definition
|
|
Term
| Protect and nourish the developing sperm cells |
|
Definition
|
|
Term
| What cells produce androgens? |
|
Definition
| interstitial cells of Leydig |
|
|
Term
| Spermatogenesis begins at puberty in response to increasing levels of ____. |
|
Definition
|
|
Term
| Testosterone causes the typical male secondary sex characteristics to develop: |
|
Definition
-growth and enlargement of all the sex organs
-increased growth of body and facial hair
-poss decrease in head hair
-enlargement of the larynx
-thickening of the vocal cords
-thinkening of the dermis |
|
|
Term
| The hormone that actually stimulates spermatogenesis to occur is ___. |
|
Definition
|
|
Term
|
Definition
|
|
Term
| Head of the sperm cell, contains 23 chromosomes and very little cytoplasm |
|
Definition
|
|
Term
| Embedded in the walls of the seminiferous tubules of the testes are haploid/diploid cells? |
|
Definition
|
|
Term
|
Definition
| Diploid cells embedded in the walls of the seminiferous tubules (has 23 pairs of chromosomes) |
|
|
Term
| In response to FSH, spermatogonia undergo mitosis to produce a large number of diploid cells called ______ _______. |
|
Definition
|
|
Term
| The primary spermatocytes undergo meiosos I and divide to produce 2 ______ _______. |
|
Definition
|
|
Term
| Haploid cells have how many chromosomes? |
|
Definition
|
|
Term
| After meiosis I, each chromosome still has 2 identical chromatids held together by a ________. |
|
Definition
|
|
Term
| Each secondary spermatocyte undergoes meiosis II forming 4 _______. |
|
Definition
|
|
Term
| What is the name for mature sperm cells? |
|
Definition
|
|
Term
| Maturation of sperm cells require what hormone? |
|
Definition
|
|
Term
| As the sperm mature they leave the seminiferous tubules and travel to the _______. |
|
Definition
|
|
Term
| Final maturation and storage of sperm occur in the _______. |
|
Definition
|
|
Term
| Each diploid spermatocyte give rise to how many mature sperm cells? |
|
Definition
|
|
Term
| What is the cap-like of the head of the sperm called? |
|
Definition
|
|
Term
| The acrosome contains what enzyme important for fertilization? |
|
Definition
|
|
Term
| The body of the sperm cell contains much of ________ and ________. |
|
Definition
| mitochondria and microtubules |
|
|
Term
| In the ovaries are a large number of cells called ______. |
|
Definition
|
|
Term
| Oogonia undergo mitosis to form cells called _______ _______. |
|
Definition
|
|
Term
| T/F a baby girl is born with all of the primary and secondary oocytes she will ever have? |
|
Definition
| False, a baby girl is born with ONLY all of the primary oocytes she will ever have. |
|
|
Term
| Prior to birth (baby girl), the primary oocytes begin meiosis I, at approx what stage do they get to when they "pause" |
|
Definition
|
|
Term
| When will a primary oocyte begin to mature? |
|
Definition
| When a girl reaches puberty |
|
|
Term
| A primary oocyte divides in to what? |
|
Definition
| A secondary oocyte and a first polar body |
|
|
Term
| At ~day 14 of the menstrual cycle there is an increase in what hormone? |
|
Definition
|
|
Term
| An increase in LH cause what to happen? |
|
Definition
|
|
Term
| The ______ oocyte is released from the ovary. |
|
Definition
|
|
Term
| If there is no fertilization then there is no ______. |
|
Definition
|
|
Term
| Fertilization usually occurs in the upper ___ portion of the fallopian tube? |
|
Definition
|
|
Term
| If there is fertilization, rapid meiosis II occurs, the oocyte forms an ____ and sends out a.... |
|
Definition
|
|
Term
| T/F it is not possible for a 1st polar body to split into two 2nd polar bodies |
|
Definition
|
|
Term
| Ovulation occurs in response to what hormone? |
|
Definition
|
|
Term
| What is the inner texture of the ovary like? |
|
Definition
|
|
Term
| An ovary has a large number of primary _______ in it. |
|
Definition
|
|
Term
| What is a primary follicle composed of? |
|
Definition
| 1 primary oocyte surrounded by a single layer of follicular cells |
|
|
Term
| At the onset of puberty, what hormone stimulate the primary follicles to start maturation every 28 days? |
|
Definition
|
|
Term
| Once the primary follicle develops a fluid filled cavity and becomes a secondary follicle that migrates to the surface of the ovary it is then called a mature _______ _______. |
|
Definition
|
|
Term
| As follicle develops into mature Graafian stage, the follicular cells start to secrete ____. |
|
Definition
|
|
Term
| On day 14 of the menstrual cycle there is a sharp increase in ____. |
|
Definition
|
|
Term
| In response to LH, what happens to the follicle? |
|
Definition
|
|
