Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password

Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

MC Bio 205 ch 25 Test

Enter the letter for the matching Answer
incorrect
1.
how long does spermatogenesis take?
incorrect
2.
secondary follicle
incorrect
3.
zona pellucida
incorrect
4.
ovulation
incorrect
5.
sperm maturation
incorrect
6.
avg number of sperm in a milliliter of semen
incorrect
7.
the male urethra
incorrect
8.
Leydig cells
incorrect
9.
cremaster muscle
incorrect
10.
spermatogonia
incorrect
11.
two major types of cell in the seminiferous tubules
incorrect
12.
epididymis
incorrect
13.
the middle piece of the sperm
incorrect
14.
male secondary sex characteristics
incorrect
15.
seminal vesicles
incorrect
16.
major events in spermatogenesis
incorrect
17.
seminiferous tubules
incorrect
18.
ductus deferens
incorrect
19.
ejaculatory duct
incorrect
20.
negative feedback + spermatogenesis
A.
passes through the prostate | three sections: prostatic, membranous, spongy (penile)
B.
at -----, the secondary oocyte is expelled into the pelvic cavity together with the first polar body and corona radiata
C.
stem cells that remain dormant during childhood and actively begin producing sperm at puberty
D.
L/spaces between seminiferous tubules | F/secrete testosterone
E.
F/contains mitochondria arranged in a spiral, which provide the energy (ATP) for locomotion
F.
L/posterior to the base of the urinary bladder and anterior to the rectum | F/secrete alkaline fluid (60% of semen volume) that protects sperm from acidic vagina | fluid also contains fructose for ATP production, prostaglandins, clotting proteins
G.
a comma-shaped organ that lies along the posterior border of each testis | mostly contains ductus epididymis | sperm may remain viable here for several months
H.
each of the 200-300 lobules in each testis contains 1 to 3 tightly coiled ----- that produce sperm
I.
65-75 days
J.
50-150 million
K.
aka vas deferens | this is what the ductus epididymis becomes at the point where its diameter increases and it becomes less coiled | stores sperm and conveys sperm from epididymis toward urethra
L.
the process by which sperm acquire motility and the ability to fertilize a secondary oocyte | takes 14 days | occurs in the ductus epididymis
M.
each ---- is about 2 cm long and is formed by the union of the duct from the seminal vesicle and the ampulla of the ductus deferens
N.
spermatogenic cells and Sertoli cells
O.
when enough sperm have been made, Sertoli cells release inhibin, which inhibits FSH secretion by anterior pit | when fewer sperm are in bank, inhibin production declines
P.
spermatogonia [diploid] undergo mitosis, forming primary spermatocytes [diploid] | meiosis I creates 2 secondary spermatocytes [haploid] | meiosis II creates 4 spermatids [haploid] | in spermiogenesis, those 4 become sperm
Q.
middle phase of follicle maturation, during which the corona radiata and the antrum appear
R.
the clear glycoprotein layer between primary oocyte and granulosa cells
S.
wide shoulders, narrow hips, facial and chest hair, thickening of the skin, enlargement of the larynx
T.
associated with each testis is the -----, a series of small bands of skeletal muscle that descends as an extension of the internal oblique to surround the testes
Type the Question that corresponds to the displayed Answer.
incorrect
21.
encloses ovaries and attaches them to the pelvic wall, where the ----- continues as the parietal peritoneum
incorrect
22.
a single, donut-shaped gland inferior to the urinary bladder | secretes milky, slightly acidic fluid (25% of semen volume) that contains citric acid for ATP production, proteolytic enzymes, and seminalplasmin (an antibiotic)
incorrect
23.
produce gametes (secondary oocytes) | produce hormones (progesterone, estrogens, inhibin, and relaxin)
incorrect
24.
attaches ovaries laterally to the pelvic wall
incorrect
25.
a sympathetic reflex coordinated by the lumbar portion of the spinal cord
incorrect
26.
during fetal development, millions of diploid stem cells known as ----- differentiate within the ovaries
incorrect
27.
parasympathetic fibers relax smooth muscle in the walls of aterieroles supplying erectile tissue | para. fibers also cause smooth muscle within erectile tissue to relax, thus widening blood sinuses | all of this compresses veins that drain the penis
incorrect
28.
a supporting structure of the male reproductive system that ascends out of the scrotum | consists of the ductus deferens, the testicular artery, veins that drain the testes, autonomic nerves, lymphatic vessels, and the cremaster
incorrect
29.
during their arrested stage of development, each primary oocyte is surrounded by a single layer of flat follicular cells, and the entire structure is called a -----
incorrect
30.
aka Cowper's glands | L/inferior to the prostate on either side of the membranous urethra | F/secrete alkaline fluid into urethra that protect sperm from acidic urine

edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how
Created by: dglenn34
Popular Anatomy sets