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Science > Male reproductive system > Flashcards

Male reproductive system Flashcards

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Biology 101 flashcards
1
Q

Location of the scrotum

A

Hangs outside of the pelvic cavity

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2
Q

What is the function of the scrotum?

A

Regulate temperature of testes by contraction of the cremaster muscle

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3
Q

Define spermatogenesis

A

Formation of sperm by meiosis

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4
Q

3 Functions of sustentacular (Sertoli) cells- develop sperm cells

A
  1. Supports and provides nutrients while the cell undergoes meiosis
  2. Produce testicular fluid for transport of sperm
  3. Control the release of sperm
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5
Q

The function of acrosome?

A

Help the sperm penetrate the oocyte

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6
Q

The function of the mitochondria

A

Produce energy for the movement of the sperm

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7
Q

The function of the tail

A

Propels the sperm

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8
Q

Hormones involved in spermatogenesis

A

GnRH, LH, FSH

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9
Q

What are the 3 functions of testosterone?

A
  1. Controls the growth and development of sex organs
  2. Stimulates sperm maturation, bone growth, and protein synthesis
  3. Stimulates development of male secondary sex characteristics in puberty
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10
Q

Location of the epididymis?

A

Around the posterior surface of the testes

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11
Q

The function of the epididymis?

A

The site store, mature, and propels sperm.

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12
Q

The function of the ductus (vas) deferens?

A

The duct that stores and transports sperm from the epididymis to the urethra

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13
Q

What are the 5 structures in the spermatic cord?

A
  1. Blood vessels
  2. Nerves
  3. Lymphatic nerves
  4. Ductus
  5. Cremaster muscle
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14
Q

What is the location of the seminal vesicles?

A

Pair of structures that lie on the posterior surface of the bladder

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15
Q

What is the function of the seminal vesicles?

A

Produce many of the parts of semen

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16
Q

What is the location of the ejaculatory duct?

A

Each side of the prostate gland

17
Q

What is the function of the ejaculatory gland?

A

This duct ejects sperm into the urethra just before ejaculation

18
Q

Location of the prostate gland?

A

Inferior to the urinary bladder

19
Q

What is the function of the prostate gland?

A

Produce/secretes fluid into the urethra during ejaculation

20
Q

What is the location of the bulbourethral gland?

A

Inferiorly to the prostate gland at the root of the penis

21
Q

What is the function of the bulbourethral glands?

A

Lubricate urethra during sexual excitement

22
Q

What is the function of the urethra?

A

Carries urine from the bladder and propels semen to outside the body

23
Q

What prevents a male to urinate during ejaculation?

A

The smooth muscle spinster contracts during ejaculation

24
Q

2 age relates changes in males

A
  1. 55 yrs decreased testosterone

2. Hyperplasia can cause frequent urination

25
Q

Puberty in males

A

Onset puberty ages 12-14yrs. Pluses of GnRH stimulate the production of LH and FSH

Science (4 decks)

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