A single ejaculation contains ...A... to ...B | vedclass

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(B) Semen is a collection of secretions from the seminal vesicles,prostate gland,and Cowper's glands,along with sperms from the testes.$A$ single ejac

Vedclass · Accepted Answer

$A-200, B-300, C-7.35, D-7.50$

Vedclass · Answer

(B) Semen is a collection of secretions from the seminal vesicles,prostate gland,and Cowper's glands,along with sperms from the testes.$A$ single ejaculation typically contains $200-300$ million spermatozoa (sperms).For normal fertility,at least $60\%$ of these sperms must have normal shape and size,and at least $40\%$ must show vigorous motility.Semen has a pH range of $7.35-7.50$.Its alkalinity helps to neutralize the acidity of the urethra and protects the sperms from the acidic environment of the vagina.

Column-$I$	Column-$II$
$(1)$ Placenta	$(a)$ Stimulates uterine contraction for parturition
$(2)$ $hPL$	$(b)$ Provides nutrition to the embryo
$(3)$ Relaxin	$(c)$ Antibody in colostrum
$(4)$ $IgA$	$(d)$ Hormone secreted by placenta

$A$ single ejaculation contains $...A...$ to $...B...$ million spermatozoa. Semen has a pH of $...C...$ to $...D...$. Its alkalinity helps to neutralize the acidity of the urethra. Here $A, B, C$ and $D$ refer to:

Similar Questions

Match the following columns:
Column-$I$ Column-$II$
$(1)$ Placenta $(a)$ Stimulates uterine contraction for parturition
$(2)$ $hPL$ $(b)$ Provides nutrition to the embryo
$(3)$ Relaxin $(c)$ Antibody in colostrum
$(4)$ $IgA$ $(d)$ Hormone secreted by placenta

The sex of a fetus can be determined by examining the cells of the amniotic fluid for the presence of:

$A$: Inhibin is secreted by the corpus luteum.
$R$: They inhibit the $FSH$ and $GnRH$ production.

Precocious puberty is defined as:

Identify the odd one out from the following.

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