In: Anatomy and Physiology
Urgent!!
1. Inhibin is released in males:
when ejaculation hasn't taken place in a while
Continuously
After ejaculation
None of the these
2. Most tubular secretion takes place in the:
Distal convoluted tubule
Ascending Loop of Henle
Proximal convoluted tubule
Descending Loop of Henle
3. The ampulla is the site of:
oocyte release
capacitation
oocyte fertilization
implantation
4. Patients with poor GFR and renal clearance have:
osmotically dilute urine
high plasma creatinine levels
decreased tubular reabsorption
low plasma creatinine levels
5. The form of sperm that is the most able to penetrate an egg is a:
Spermatogonia
Primary spermatocyte
Spermatozoa
Spermatid
6.The primary female reproductive organ is:
The fallopian tube
The uterus
The ovary
7.Bladder infections are most likely to develop in:
the ureter
None of these
the fundus
the trigone
8. Tubular secretion of H+ usually is an indicator that:
the blood pH was too high
the urine wasn't acidic enough
the blood pH was too low
nothing - no significance
10. What is the cause of an inguinal hernia?
The one or more testis did not descend
The gubernaculum is too long
The genitalial process remained open
The testes descended incorrectly
11. Most low-dose progesterone-based birth control methods do not prevent pregnancy by:
Altering the endometrium
Slowing fallopian tube motility
Preventing ovulation
Thickening cervical mucus
12. Which of the following structures does NOT provide nourishment to developing sperm?
Seminal vesicle
Vas deferens
Epididymus
Prostate
13. Reasons that a woman may not get pregnant, even if her partner's sperm is healthy are:
no explainable medical reason
all of these
failure to ovulate
blocked fallopian tubes
1st question-
inhibin is released continuously in males.
Explanation- inhibin plays an important role in regulation of spermatogenesis. The have a negative impact on FSH activity and stops the process of spermatogenesis. Inhibin is present all the time and controls spermatogenesis. When rate of spermatogenesis increases, the inhibin production also increases.
2nd question- proximal convulated tubules
Explanation- tubular secretion is the process by which some substances are transferred from blood to renal tubules. This process is essential for formation of urine. The maximum secretion occur in PCT. Substances like potassium, ammonia, hydrogen ions are secreted in PCT.
3rd question- oocyte fertilization
Explanation- fertilization is the process of fusion of sperm to ovum. After the intercourse, the sperm travels through the vagína and uterus to reach tha ampulla of fallopian tube and fertilization takes place here.
5th question- spermatozoa
Explanation- spermatozoa is the most mature form of sperms . The head of the spermatozoa has acrosome. The acrosome has hyaluronidase and proteolytic enzymes, which are essential for the sperms to penetrate the ova and fertilize it.