Pathophys reproductive system Flashcards
Production of gametes occurs where in males? Females?
Testes
Ovaries
Sperm are produced by ______ which are ______(diploid/haploid)
Spermatogonium
Diploid
Ova are produced by ______ which are ______(diploid/haploid)
oogenium
diploid
Why is production of gametes is important?
Reduces number of chromosomes without losing any genetic info.
Where does fertilization occur?
Fallopian tubes
Fertilization forms a ______.
Zygote
Zygotes are _____(haploid/dipload)
diploid
GnRH is released where?
The hypothalamus
GnRH stimulates the ______ to release ____ and _____.
Anterior pituitary
FSH and LH
What is the dominant producer of progesterone?
The corpus luteum
What is the dominant producer of estrogen?
The ovarian follicle.
What cells produce testosterone in males?
Interstitial cells
What week do the following processes occur in the zygote?
Genital ridges form
Differentiation
Gender is detectable on US
Genital ridges form - 6 weeks
Differentiation - 12 weeks
Gender is detectable on US -20 weeks
What chromosomes do males have? Females?
Males = XY Females = XX
The Y chromosome produces what factor that stimulates testes development?
Testes determining factor (TDF)
What is secreted by the testes that inhibits female development?
MIF/AMH
Mullerian inhibiting factor/antimullerian hormone
T/F? No action is of the embryo is needed to develop into a female?
True
Mesonephric ducts are present in what gender?
Paramesonephric duct?
Mesonephric - male
Paramesonephric - female
What muscles are responsible for temp regulation of the testes?
Cremaster
Smooth muscle of tunica dartos
Optimal temp for spermatogenesis?
35 degrees C
The epididymis is covered by the tunica _____
vaginalis
The lobules of the seminiferous tubules are created by the tunica _____
albuginea
Which of the following are located in the spermatic cord? 1.Pampiniform plexus 2. Testicular artery 3. Cremaster muscle 4. Vas Deferens 5. Ejaculatory duct 6. Spermatic fascia A) 1, 2, 3, 4, 5, 6, B) 1, 2, 3, 4, 6 C) 1, 2, 4, 6 D) 1, 3, 4, 5, 6.
B
The blood testes barrier is created by what cells?
Sustentacular cells(Sertoli cells)
Why is the blood testes barrier important?
Lymphocytes would kill spermatids
The sustentactular cells make 2 compartments separated by tight junctions. What are they called and what is their function?
Basal and luminal compartments
Creates separate chemical environments to trigger development of sperm
The \_\_\_\_ has/have no androgen receptors and do not respond to it. A) Germ cells B) Muscular tissue C) Sustentacular cells D) Hypothalamus E) Pituitary gland
A) germ cells
List the pathway sperm takes from formation to ejaculation.
Seminiferous tubule, rete testis, epididymis, ductus deferens, ejaculatory duct, urethra
Which of the following are Accessory sex organs in males? 1. Epididymis 2. Ductus deferentia 3. Ejaculatory ducts 4. Urethra 5. Prostate gland 6. Bulbourethral glands A) 1, 2, 3, 5, 6 B) 1, 2, 5, 6 C) 1, 2, 3, 4, 5, 6 D) 1, 2, 3, 4
C
Function of the epididymis
Promotes maturation of sperm