Daily lab quiz C 1. The head of the sperm contains and 2. The secretions from th
ID: 302126 • Letter: D
Question
Daily lab quiz C 1. The head of the sperm contains and 2. The secretions from the account for 60% of the semen produces testosterone. 4. Name the 3 parts of the male urethra. 5. Name 2 muscles that regulate the scrotal temperature. 1. Name the hormone that induces ovulation and conversion of a follicle into the corpus luteum. 2. Name the hormone that maintains the corpus luteum after its typical 14 day life- cycle. 3. In the female, the development of the "egg" halts during TWO stages, and 4. The death of the corpus luteum results in the formation of 1. 2. 3. Name the 3 stages of labor. Show Answer is the actual structure that will implant into the endometrial lining is the mother's side of the placenta. Show AnswerExplanation / Answer
1. The head of the sperm contains nucleus with DNA and an acrosome.
Nucleus contains DNA that combines with the DNA of egg and produce a new individual.
An acrosome is present in the tip of the sperm that contains enzyme which helps the sperm to enter into the egg.
2. The secretion from seminal vesicles the accounts for 60% of the semen.
Seminal vesicles secretion contains fructose that helps to nourish the sperm and activate sperm to enhance motility.
3. Gonads produce testosterone.
Gonads produces testosterone by Leydig cells in testis in men and by ovaries in women. Adrenal gland also produces testosterone in small quantities in both men and women. Testosterone is an androgen that develops male characteristics.
4. Name the 3 parts of male urethra.
i) prostatic urethra
It passes through prostate and is around 2.5 cm in length from the base of bladder to membrane urethra.
ii) membranous urethra
It is the smallest part of urethra that link the prostatic urethra to penile or spongy urethra. Its length is around 1 to 2 cm and plays role in voluntary control of urinary flow.
iii) penile urethra
It is end part of the urethra that exit the urine outside through penis. It is the large part of urethra and its length is around 15 cm.
5. Name 2 muscles that regulate the scrotal temperature.
Tunica dartos and Cremaster muscle are the two muscle that regulate the scrotal temperature.
Tunica dartos is a thin layered muscle and helps to regulate the temperature of testicles by contracting and expanding to wrinkle the skin of the scrotal.
The cremaster muscle is a thin layered smooth muscle of the spermatic cord that help the movement of the testis to control its temperature.
1. Name the hormone that induces ovulation and conversion of a follicle into the corpus luteum.
Luteinizing hormone (LH) is an important hormone, which helps in ovulation and conversion of a follicle into the corpus luteum. It is produced by gonadotropic cell of the pituitary gland
2. Name the hormone that maintains the corpus luteum after its typical 14 day life -cycle.
Luteinizing hormones in small amount maintans the corpus luteum after its typical 14 day life cycle
3. In the female, the development of the "egg" halts during TWO stage diplotene stage of prophase I and Metaphase II
4. The death of the corpus luteum result in the formation of corpus albicans.
Corpus albicans is formed when corpus luteum is broken down by macrophage.
1. Blastocyst is the actual structure that will implant into the endometrial lining.
2._____________ is the mother's side of the placenta. Show Answer
Answer: The placenta side that is connected to the mother is called the mother's side placenta and side in which the umbilical cord attaches is called fetal side placenta. The mother's side of placenta is fleshy and rubbery muscle attached to the umbilical cord which is a single organ which communicate the placenta with baby bidirectionally.
3. Name the 3 stage of labor. Show Answer
The first stage of labor is divided into three stage:
Early labor, Active labor and transition labor
Second stage of labor involves pushing of the baby to be delivered.
Third stage shortest stage in which delivery of placenta occurs and birth of baby takes place
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