Core Content of Sex Education and Male Reproductive System Anatomy: From Basic Knowledge to Secondary Sexual Characteristics

[**3** **. What does sex education include?**]

Adolescence is a period of awakening in adolescents' sexual psychology.

Sex education should be provided annually to equip them with sexual knowledge, so that they can respond to sudden...

He can deal with sudden sexual desires and urges scientifically.

It is an important condition for the healthy physical and mental development of teenagers. Sexual education for adolescents...

Education plays a crucial role in preventing moral transgressions in adolescents' sexuality and in shaping their future romantic relationships.

Success and marital happiness are of great importance.

Sex education for adolescents mainly includes sexual physiology, sexuality, and sexuality.

Internal aspects of psychology, sexual health, family planning, and sexual morality

Sex education should be tailored to the different developmental stages and actual circumstances of adolescents, and should be conducted scientifically.

Sexual physiology knowledge mainly includes the anatomy and function of sexual organs.

Physiological phenomena such as menstruation and nocturnal emission are taught to enable them to have a scientific understanding of these phenomena.

Sexual psychology knowledge mainly includes the psychological preparation for nocturnal emission and menstruation.

Preparation, the psychological harm of masturbation, and the correct attitude towards interacting with the opposite sex.

Sexual health knowledge mainly includes hygiene during menstruation, hygiene during sexual activity, and knowledge on the prevention and treatment of sexually transmitted diseases.

Family planning mainly includes the importance of late marriage and appropriate...

The topics covered included reproductive age, the significance of advocating for one child per couple, and basic knowledge of contraception.

Sex education mainly includes knowledge of sexual ethics and the principles of sex.

Moral and legal awareness, prevention of sexual misconduct, etc., make teenagers realize that sexual morality is a serious social issue and one of the important indicators of the spiritual civilization of young people.

**4.** As a man, are you familiar with the male reproductive system?

The male and female reproductive systems have significantly different structures; in medicine, the reproductive organs are referred to as primary sexual characteristics.

Reproduction is a vital life activity for human beings to continue their lineage and reproduce.

Human reproduction is accomplished through the reproductive organs of both men and women. The male reproductive organ consists of two parts:

One part consists of the external genitalia, including the penis and scrotum; the other part consists of the internal genitalia.

Organs, including the testes, epididymis, vas deferens, ejaculatory ducts, and spermatic cord.

The cysts, prostate gland, bulbourethral glands, etc. Detailed descriptions are as follows:

(1) Penis: The penis consists of three corpora cavernosa covered by fascia and

The skin is composed of two corpora cavernosa, the corpus spongiosum and the urethral sponge.

It has one body. It is divided into a root, a body, and a head. The root is fixed to...

The perineum, the swollen tip of the penis forms the glans penis, head

The section where it meets the body is narrower, forming the neck, which is a ring-shaped groove.

This is called the coronal sulcus. The urethra passes through the corpus spongiosum, opening into...

The external urethral orifice. The penis, when flaccid, is cylindrical and 5–10 cm long.

Centimeters. When erect, it takes the shape of a triangular cylinder, increasing in length by one centimeter.

More than twice the size of a penis, its primary function is sexual intercourse. The penis is covered with...

The skin covering the glans penis is called the foreskin.

The special structures within the corpora cavernosa are important tissue structures for penile erectile function.

Penile erection is a prerequisite for sexual intercourse.

(2) Scrotum: The scrotum is a skin sac located on the penis.

The lower back of the scrotum. The skin of the scrotum is thin and soft, with a small amount of vaginal discharge.

Hair, with noticeable pigmentation. The scrotal wall consists of skin and dartos fascia.

Formation. The sarcolemma contains smooth muscle fibers. Smooth muscle reacts with external temperature changes.

It exhibits reflexive contraction and relaxation to regulate the temperature within the scrotum, which is beneficial.

It affects sperm development. When the external temperature is high, smooth muscle relaxes.

The fascia expands; it contracts when the outside temperature is low. The fascia is located along the midline.

The scrotal septum extends deep into the scrotum, dividing the scrotal cavity into left and right parts.

It is divided into two sections, each accommodating the testis and epididymis on both sides.

(3) Testes: The testes are the male reproductive glands, located on the left and right sides respectively.

First, it is oval-shaped and suspended within the scrotum by the spermatic cord, and is long.

4-5 cm in diameter, 3-4 cm in thickness, each weighing approximately 15 grams.

It is the organ that produces male reproductive cells (i.e., sperm).

It is the main endocrine gland that produces male hormones. The testes contain...

Structure: The surface of the testis is covered by a thick, dense connective tissue membrane, called...

The tunica albuginea. The inner side of the tunica albuginea is loose connective tissue, containing abundant...

The abundant blood vessels are called the vascular membrane. The tunica albuginea of ​​the testis proliferates on its dorsal side.

It is thick and indents into the testis, forming the testicular mediastinum.

It extends radially into the testicular parenchyma, dividing the testis into several lobules.

Each lobule contains 1 to 3 curved seminiferous tubules.

At the tip of the leaflet, they converge into a short, straight, fine seminiferous tubule.

Upon entering the mediastinum, these small tubes anastomose to form a network.

The rete testis forms, from which 12 to 13 curved [channels] extend.

The small tubules, called efferent ducts of the testis, emerge from the tunica albuginea and enter the epididymis.

In the head, between the seminiferous tubules are cytoplasmic cells that can secrete male hormones.

It promotes the development of male reproductive organs and male secondary sexual characteristics.

And maintenance. The seminiferous tubule epithelial cells have the function of producing sperm.

The seminiferous tubules are formed by the combination of curved and thin tubules to create straight tubules, which are responsible for transporting sperm.

The vas deferens is expelled from the body through a system of converging and merging into a single tube that enters the head of the epididymis.

(4) Epididymis: The epididymis is the epididymal duct located at the posterior border of the testis.

It is curved, with fine fibrous tissue and honeycomb structure between the tubes.

The testis is composed of three parts: head, body, and tail. The head of the testis is formed by the efferent ducts.

The tube wall is composed of pseudostratified columnar epithelium and contains two types of cells.

One type has ciliated columnar epithelium; the other type has low columnar epithelium.

The secretory cells are arranged in alternating heights, so the lumen is not...

It is regular in shape and serrated. The body and tail of the epididymis are composed of epididymal ducts.

This tube is composed of pseudostratified columnar ciliated epithelium, with a high epithelial height.

The epididymis is uniformly short, resulting in a regular lumen. It is slender and flattened in shape.

Shaped like a crescent moon, one on each side, approximately 5 centimeters long, with attached...

Located on the posterior side of the testis. The epididymis stores and releases sperm, and promotes sperm production.

It facilitates sperm maturation and secretes fluids to nourish the sperm. (Up)

The aforementioned physiological functions are accomplished through the absorption, secretion, and concentration functions of the epididymal epithelial cells.