章节大纲

  • A male figure shown from the front and back views.

    What organs are unique to the male body?
    ::男性身体特有的器官是什么?

    Males  and females share most of the same organs. We all have skin, a heart, and lungs Males and  females differ only in their reproductive organs.
    ::男女的器官大部分相同,我们都有皮肤、心脏和肺,男性和女性的生殖器官各有不同。

    Male Reproductive Organs
    ::男性生殖器官

    The male reproductive organs include the penis , testes , and epididymis ( Figure ). The figure also shows other parts of the male reproductive system .
    ::男性生殖器官包括阴茎、睾丸和肾上腺素(图)。

    Male reproductive organs with labels for each structure.
    This drawing shows the organs of the male reproductive system. It shows the organs from the side. Find each organ in the drawing as you read about it in the text.
    • The penis is a cylinder-shaped organ. It contains the urethra . The urethra is a tube that carries urine out of the body. The urethra also carries out of the body.
      ::阴茎是圆柱形的器官,内含尿素,尿道是一个从身体中撒尿的管子,尿道也从身体中流出。
    • The two testes (singular, testis) are egg-shaped organs. They produce sperm and secrete testosterone . The testes are found inside of the scrotum . The scrotum is a sac that hangs down outside the body. The scrotum also contains the epididymis. The testes, being in the scrotum outside the body, allow the temperature of the sperm to be maintained at a few degrees lower than body temperature. This is necessary for the stability of these reproductive cells .
      ::这两个睾丸(同卵、睾丸)是蛋状器官,它们产生精子和秘密睾酮。睾丸是在阴囊内发现的。阴囊是一个在身体外悬吊的囊囊囊。阴囊中也含有肾上腺素。睾丸在身体外的囊中,允许将精子的温度维持在比体温低几度的水平。这对于这些生殖细胞的稳定是必要的。
    • The epididymis is a tube that is about six meters (20 feet) long in adults. It is tightly coiled, so it fits inside the scrotum. It rests on top of the testes. The epididymis is where sperm grow larger and mature. The epididymis also stores sperm until they leave the body. 
      ::肾上腺素是一条在成人体内大约6米(20英尺)长的管子,紧紧缠住,紧贴在阴囊内,放在睾丸顶部。肾上腺素是精子长大和成熟的地方。肾上腺素也储存精子,直到它们离开身体为止。

    Other parts of the male reproductive system include the vas deferens and the prostate gland . Both of these structures are pictured below ( Figure ).
    ::男性生殖系统的其他部分包括血管延后和前列腺,这两个结构图示如下(图)。

    • The vas deferens is a tube that carries sperm from the epididymis to the urethra.
      ::螺旋顺带管 将精子从表面到尿道
    • The prostate gland secretes a fluid that mixes with sperm to help form semen . The prostate gland is located beneath the bladder Semen is a "milky" liquid that carries sperm through the urethra and out of the body. In addition to sperm cells, semen contains sugars (fructose) which provide energy to the sperm cells, and enzymes and other substances which help the sperm survive.
      ::前列腺分泌液体,与精子混合,以形成精液。前列腺位于膀胱下方。精液是一种“微型”液体,通过尿道和体外携带精子。除精细胞外,精液中还含有糖(葡萄糖),为精细胞提供能量,并含有酶和其他能帮助精子生存的物质。

    Summary
    ::摘要

    • Male reproductive organs include the penis, testes, and epididymis.
      ::男性生殖器官包括阴茎、睾丸和肾上腺素。
    • The testes produce sperm and secrete testosterone.
      ::睾丸产生精子和秘密睾丸激素

    Explore More
    ::探索更多

    Use the resources below to answer the questions that follow.
    ::利用以下资源回答以下问题。

    Explore More I
    ::探索更多

    • Male Reproductive Organs at
      ::男生殖器官生殖器官
    1. What does the prostate gland do?
      ::前列腺会做什么?
    2. What is the epididymis? Where is it located? What is its function?
      ::其作用是什么呢?其所在地在哪里?其作用是什么呢?

    Review
    ::回顾

    1. Arrange the following structures in the order that sperm pass through them: urethra, epididymis, vas deferens.
      ::按精子经过的顺序排列以下结构:尿道、直觉、顺从。
    2. Why is the epididymis needed for reproduction in males?
      ::为什么男性生殖需要非同寻常的动物呢?
    3. What is the composition of semen? What role do these components play?
      ::精液的构成是什么?这些成分发挥什么作用?