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  • 男性生殖器官

    Chemical structure of testosterone next to a diagram of a sperm cell.

    Would you believe the male reproductive structures are over 100 feet long?
    ::你相信男性生殖结构 超过100英尺长吗?

    The male reproductive system has two goals: to produce and deliver and to secrete testosterone . Might seem simple. But there are a number of complicated processes and structures - including over 100 feet of tubules - that go into these simple goals.
    ::男性生殖系统有两个目标:生产和交付,以及分泌睾固酮。也许看起来很简单。但许多复杂的过程和结构 — — 包括100英尺以上的管子 — — 都进入了这些简单的目标。

    The male reproductive system has two main functions: (1) to produce sperm, the male gamete , and (2) to release the male sex hormone , testosterone, into the body.
    ::男性生殖系统有两个主要功能伤心1) 生成精子,即男性调子,(2) 将男性性激素睾丸酮释放到身体中。

    Male Reproductive Structures
    ::男性生殖结构

    The reproductive system in both males and females consists of structures that produce reproductive , or gametes, and secrete sex hormones. A gamete is a haploid cell that combines with another haploid gamete during . Recall that haploid cells have one complete set of ; in humans that would be 22 autosomes and one sex chromosome .
    ::男性和女性的生殖系统都由产生生殖或调子和分泌性荷尔蒙的结构组成。 调子是一种杂交细胞,在 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 男女的生殖系统都由产生生殖或调子和性激素的结构组成, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Sex hormones are chemical messengers that control sexual and . The male reproductive system consists of structures that produce male gametes called sperm and secrete the male sex hormone testosterone.
    ::性荷尔蒙是控制性行为的化学信使。 男性生殖系统由产生男性调子的结构组成,称为精子,并分泌男性性激素睾酮。

    The main structures of the male reproductive system are shown in Figure . Locate them in the figure as you read about them below. 
    ::图3显示了男性生殖系统的主要结构。

    The male reproductive system with labeled structures including penis, testes, and epididymis.

    Male Reproductive Structures. Organs of the male reproductive system include the penis, testes, and epididymis. Several ducts and glands are also part of the system. Do you know the reproductive functions of any of these structures?
    ::男性生殖结构:男性生殖系统的器官包括阴茎、睾丸和肾上腺,一些管道和腺也是生殖系统的一部分。你知道这些结构的生殖功能吗?

    Penis
    ::Penis 精小

    The penis is an external genital organ with a long shaft and enlarged tip called the glans penis. The shaft of the penis contains erectile tissues that can fill with and cause an erection. When this occurs, the penis gets bigger and stiffer. The urethra passes through the penis. Sperm pass out of the body through the urethra. (During urination , the urethra carries urine from the bladder .)
    ::阴茎是一种外生殖器官,有长轴和大端,称为阴茎。阴茎的轴中含有能够填充并导致勃起的勃起组织。当这种情况发生时,阴茎会变大,变硬。尿素通过阴茎穿透。阴茎会通过尿道从身体中流出。(在尿道中,尿素会从膀胱中流出尿。)

    Testes
    ::测试测试

    The two testes (singular, testis) are located below the penis. They hang between the thighs in a sac of skin called the scrotum . Each testis contains more than 30 meters (over 90 feet) of tiny, tightly packed tubules called seminiferous tubules . These tubules are the functional units of the testes. They produce sperm and secrete testosterone .
    ::两根睾丸(双胞胎、睾丸)位于阴茎下方,在大腿之间挂在称为阴囊的皮肤囊中,每根睾丸都含有30米(超过90英尺)的细小、紧凑的管状管,称为半肾管,这些管状管是睾丸的功能单位,产生精子和睾丸酮。

    Epididymis
    ::埃皮迪迪米斯

    The seminiferous tubules within each testis join to form the epididymis . The epididymis (plural, epididymis) is a coiled tube about 6 meters (20 feet) long lying atop the testis inside the scrotum. The functions of the epididymis are to mature and store sperm until they leave the body.
    ::每个睾丸内半圆形的管子合起来形成结晶。 结晶( 结晶、 结晶) 是一条长约6米( 20英尺) 的圆形管子, 长于睾丸内。 结晶的功能是成熟并储存精子, 直到它们离开尸体。

    Ducts and Glands
    ::Ducts和Glands

    In addition to these organs, the male reproductive system consists of a series of ducts and glands. Ducts include the vas deferens and ejaculatory ducts. They transport sperm from the epididymis to the urethra in the penis. Glands include the seminal vesicles and prostate gland . They secrete substances that become part of semen .
    ::除这些器官外,男性生殖系统由一系列管道和腺组成,污点包括血管延后剂和阴道管,它们将精子从上皮转移到阴茎的尿道,Glands包括精液和前列腺,它们隐藏成为精液一部分的物质。

    Semen
    ::清扫

    Semen is the fluid that carries sperm through the urethra and out of the body. In addition to sperm, it contains secretions from the glands. The secretions control pH and provide sperm with nutrients for energy .
    ::精液是携带精子穿过尿道和身体的流体,除精子外,还包括来自腺体的分泌物。分泌物控制pH值,并为精子提供能量营养素。

      

     

    Summary
    ::摘要

    • The male reproductive system consists of structures that produce sperm and secrete testosterone.
      ::男性生殖系统由产生精子和秘密睾丸酮的结构组成。
    • Male reproductive structures include the penis, testes, and epididymis.
      ::男性生殖结构包括阴茎、睾丸和肾上腺素。

    Review
    ::回顾

    1. What is a gamete?
      ::什么是游戏?
    2. What are sex hormones?
      ::什么是性激素?
    3. What are the two major roles of the male reproductive system?
      ::男性生殖系统的两个主要作用是什么?
    4. Name two male reproductive organs and identify their functions.
      ::列出两个男性生殖器官并指明其功能。