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22 Cards in this Set

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  • Back
In males, Testosterone negatively inhibits _____
Gonadotopin-Releasing Hormone (GnRH)
Luteinizing Hormone (LH)
In males, Inhibin negatively inhibits _______
Follicle Stimulating Hormone (FSH)
Sperm develop _______ the Sertoli cells in the _______
between
seminiferous tubules
Spermatogonium
Produced in the fetus
46 single chromosomes
@ puberty, spermatogonium undergo ______ to become spermatogonia
mitosis
Spermatogozoa
23 haploid chromosomes
Single Strands
Secondary spermatocytes have ______ chromosomes
23 diploid double strands
Sperm travels from the testes-->_____-->_____-->___
Epididymus
Vas Deferens
Urethra
Seminal Vesicles secrete____ to ejaculate
Fructose which provides energy to the sperm
The prostate gland adds ____ to ejaculate
Alkaline fluid to neutralize the acidic environment of vagina
LH binds to receptor and _____ activity of cAMP
increases
Increased activity of cAMP leads to _____ action of pk-A
Increased
pk-A stimulates conversion of ______ to testosterone
cholesterol
Secondary Male Sex Characteristics
Increased muscle mass
Increased hair (face, chest, pubic areas)
Male Pattern Baldness
Deepening of voice
Determines whether testosterone is converted to other androgens
What other enzymes are present
Testosterone is produced in ______
Leydig Cells
Low estrogen levels produce ____ feedback
Negative
Prolonged high estrogen levels produce _____ feedback
Positive
High Estrogen + High Progesterone produce ____ feedback
Negative
Primary oocytes are arrested in their first stage of ____ division
meiotic
The first meiotic division is completed just ______
Before ovulation
The second meiotic division is completed just _____
After fertilization