EXAM II: BIOLOGY 309
Terms
undefined, object
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- The ____ sex organs of a male are the paired testes, which are suspended within the sacs of the scrotum.
- primary sex organs
- sperm produced by the testes are stored w/in the ____. Then they enter a ___ ___, which tranports them to an ___tract.
- epididymis; vas deferens; ejaculatory duct
- The ejaculatory ducts enter the ____.
- urethra
- The ___in males is a part of the both the urinary system and the reproductive system.
- urethra
- The primary sex organs of a male are the ____ ___, which are suspended within the sacs of the scrotum.
- paired testes
- The testes are the primary sex organs because they produce ____and the male sex hormones(____).
- sperm; androgens
- At the time of ___, sperm leave the penis in a fluid called semen, which is also called (___ ____).
- ejaculation; seminal fluid
- These (3) vesicles and glands add secretions to semen.
-
-seminal vesicles
-prostate gland
-bulbourethral glands (Cowper glands) - The ___vesicles are lateral to the vas deferens, and their ducts join to form an ejaculatory duct.
- seminal vesicles
- The___gland is a single, donut-shaped gland that surrounds the upper portion of the urethra just inferior to the bladder.
- prostate
- ___glands are pea-sized organs that lie inferior to the prostate on either side of the urethra.
- bulbourethral
- Each component of semen seems to have a particular ___.
- function
- sperm are more viable in a ___solution, and semen, which is milky in appearance, has a slighly ___pH (about ___).
- basic; basic; 7.5
- semen contains the sugar ___, which presumably serves as an ___source.
- fructose; energy
- semen also contains ___, chemicals that cause the uterus to contract. Uterine contractions help __________.
- prostaglandins; propel the sperm toward the egg.
- prostate enlargement is common in ___ ___. (young men? old men?)
- older men
- prostate enlargement is also known as ___ ___ ___. ? (check)
- benign prostate hyperplasia
- prostate enlargement can stemp from
- prostate cancer
- prostate enlargement increases pressure on ____, resulting in increased back-up of urine from bladder, potentially back ureter into kidneys.
- urethra
- during sexual arousal, ___nerve impulses cause erectile tissue to fill w/ blood.
- autonomic
- contractions that expel seminal fluid from the penis are part of the ___ and ___manifestations of the male orgasm.
- physiological and psyhcological
- Around ___ ___sperm (#) are contained in 3.5 ml. of semen.
- 400 million sperm