A&P Lab

The Reproductive System

Laszlo Vass, Male impotence. D. Variation 42-0025-01-01


Make sure you explain the goal of this lab. Include in your explanation difficulties concepts you learned and any basic safety concerns linked to the lab.

Exercise 1: Microscopic Investigation of Reproductive



A. Drawing each go below and describe the tissues and structures you observed on each slide.

1 ) Sketch of Testes

Lilac colored spermatozoa (sperm) had been surrounded by spermatocytes (formed following meiosis of spermatogonia) and spermotigonia (precursor to sperm)

2 . Drawing of the Ovary

The ovary showed a large number of pink, round follicles along with more compact round oocytes and a luteum (after the follicle bursts).

a few. Sketch of Human Sperm

The ejaculation was very hard to see plainly in the glide of the testes where this appeared red in color. In the online go the sperm was obviously visible with a head and flagella end (used for locomotion).

B. Describe the structural distinctions you observed between the ejaculation and eggs you observed on the slideshow:

The semen were free floating using a flagella butt allowing it to " swim” through the body to the egg. The eggs were anchored for the ovary with no cilia present.


A. Why are the testes located outside the body inside the scrotum? The availability of semen takes place ideal at slightly lower than body temperature, therefore , the testes are situated in the scrotum slightly away from body to hold them cooler.

B. What process arises in the seminiferous tubules?

Spermatogenesis (sperm production) arises in the seminiferous tubules.

C. Why carry out sperm and egg proceed through meiosis?

The sperm and egg experience meiosis in order to have half the number of chromosomes to generate a human, like that when they combine, together they may have the proper amount of chromosomal pairs. If that they didn't go through meiosis, they would create an embryo with too many chromosomes.

D. Name the various follicles you can find in the typical ovary.

The follicles present in a typical ovary are major, secondary, and Graafian. The follicles split turning into corpus luteum.

Elizabeth. How is the endocrine program involved in reproduction?

In essence, the endocrine system controls processing. The pituitary gland handles the release of LH and FSH which in turn stimulate the discharge of oxytocin, progesterone, estrogen, and testosterone; all of which are vital in reproduction.

F. What hormones result in the growth of the two sperm and egg?

LH and FSH lead to the maturation of both ejaculation and egg

Exercise two: Reproductive Structures of the Kitty


A. Why would some reproductive structures be tough to find in a fetal cat? The reproductive : structures within an adult cat are very little. In a embrionario cat they would be possibly smaller or perhaps not yet developed making them hard to locate.

B. How does the physiological arrangement from the organs in the cat beat that of a human? The reproductive : organs in the cat happen to be smaller in size to that of a human. The main big difference observed was the bicornate womb and the sharing of the urogenital sinus. They are laid out pretty similar overall.

C. Clarify the differences you saw in the cat versus a human relative to the following bodily organs and constructions (if you needed a female kitten, do the particular female structures, and if you needed a male cat do only the male structures):

в—Џ uterine tubes and oviducts:

The main big difference that I observed is that the uterine tubes are shorter and smaller in cats. Additionally , the eloigne end with the uterine pipes of humans are fringed and covered with ciliated epithelium.

в—Џ ductus deferens and its entrance into the urethra:

в—Џ urethral and...