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GEC 19 Human Reproduction > MALE REPRODUCTIVE SYSTEM > Flashcards

MALE REPRODUCTIVE SYSTEM Flashcards

1
Q

SPERMATOZOA

A
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2
Q

TESTES

A

paired gonads, egg shaped, size of a chestnut, produce male germ cells (spermatozoa), reside in the scrotum

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3
Q

SPERMATOGENISIS

A

Maturation of the sperm cell

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4
Q

PAGOSYTOSIS???

A
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5
Q

WHAT WILL HAPPEN IF THE ANTERIOR PITUITARY GLAND IS REMOVED IN A MALE?

A

THE TESTIS WILL DEGENERATE. THE SIZEOF IT WILL DECREASE. THE LEYDIG CELL WILL SEIZED FUNCTIONING.

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6
Q

WHAT IS THE EFFECT OF THE REMOVAL OF TESTES ON AN INDIVIDUAL.

A

ANDROGEN LEVELS WILL BE VERY LOW.

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7
Q

NEGATIVE FEEDBACK MECHANISM

A
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8
Q

EPIDIDYMIS

A

convoluted tubule, receives spermatozoa and stores them as they mature

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9
Q

DUCTUS (VAS) DEFERENS

A

muscular (smooth muscle) tube about 40 to 45 cm long, conveys sperm from epididymis to the ejaculatory duct

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10
Q

SEMINAL VESICLES

A

paired tubular glands, posterior to the prostate, about 15 cm long, produce seminal fluid, join the ductus deferens at the ejaculatory duct

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11
Q

PROSTATE GLAND

A

walnut-sized gland, surrounds the urethra as it leaves the urinary bladder, produces prostatic fluid that is added to semen

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12
Q

URETHRA

A

canal that passes through the prostate gland, enters the penis, and conveys the semen for expulsion from the body during ejaculation

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13
Q

TESTES (CHARACTERISTIC)

A

Develop in retroperitoneal abdominal wall and descend into scrotum

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14
Q

EPIDIDYMIS (CHARACTERISTIC)

A

Consist of head, body and tail; functions in maturation and storage of sperm

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15
Q

DUCTUS (VAS) DEFERENS (CHARACTERISTICS)

A

Passes in spermatic cord through inguinal canal to join duct of seminal vesicle (ejaculatory duct)

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16
Q

SEMINAL VESICLES

A

Secrete alkaline seminal fluid

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17
Q

PROSTATE GLAND (CHARACTERISTIC)

A

Surrounds prostatic urethra and secretes prostatic fluid

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18
Q

What does hypothalamus hormone produce?

A

GnRH

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19
Q

What does GnRH stands for?

A

Gonadotropin-releasing hormone

20
Q

What is the two secretion of GnRH?

A

Follicle-stimulating hormone (FSH)
Luteinizing hormone (LH)

21
Q

What does LH stimulates to secrete TESTOSTERONE?

A

Leydig cells

22
Q

What is required for spermatogenesis?

A

testosterone

23
Q

Testicular estrogen

A

derived by aromatization of testosterone in many testicular cells, could also play an important role in spermatogenesis

24
Q

stem cells that line the basal (outer) layer of the seminiferous tubule germinal epithelium and undergo mitotic division to produce primary spermatocytes

A

Spermatogonia

25
Q

large germ cells that possess 46 chromosomes and undergo meiosis to produce secondary spermatocytes

A

Primary spermatocytes:

26
Q

these cells are smaller than primary spermatocytes and undergo a second meiotic division very quickly to produce spermatids

A

Secondary spermatocytes:

27
Q

• these cells undergo a maturation process (spermiogenesis)
• form a head and tail and become spermatozoa
• pass from the lumen of the seminiferous tubules to the epididymis for storage and maturation

A

Spermatids:

28
Q

THESE CELLS UNDERGO A MATURATION PROCESS CALLED SPERMIOGENESIS.
• A. Spermatogonia
• B. Primary spermatocyte
• C. Secondary spermatocyte • D. Spermatids
• E. Spermatozoa

A

D. Spermatids

29
Q

about 20 cm long and descriptively is divided into three parts:

A

Urethra

30
Q

proximal portion of the male urethra that runs through the prostate gland

A

Prostatic urethra:

31
Q

short, middle portion that is enveloped by the external urethral sphincter

A

Membranous urethra:

32
Q

courses through the bulb of the penis, the pendulous portion of the penis and the glans penis to open at the external urethral orific

A

Spongy urethra:

33
Q

reside in the external urethral sphincter
pea-sized glands
secrete a clear, viscous alkaline mucus
lubricate the lumen of the spongy urethra and neutralize its acidic environment, thus preparing the way for the semen

A

bulbo-urethral (Cowper’s) glands

34
Q

• prostatic urethra
• sympathetic
control
• closes off the
urethra during ejaculation so that semen cannot pass into the bladder and urine into the urethra

A

internal urethral sphincter

35
Q

membranous urethra
• skeletal muscle • innervated by
branches of the
pudendal nerve • voluntary control

A

external urethral sphincter

36
Q

What is spermatosis?

A
37
Q

What do you think is the disadvantage of spermatosis?

A
38
Q

Spermatozoa

A

Sperm Cells

39
Q

Testis to epidedymis what will happen to immature sperm

A

Beforw the sperm cell is release theres a modification happening. Theres an acid that prevents the immature release of the acrusome

40
Q

The lipid coating is removed so that the granules inside the sperm cell is able to reach the nucleus of the egg cell

A

Capacitation

41
Q

Retrograde ejaculation

A

The semen goes to the urinary bladder. Ummakyat instead of bejng ejaculated

42
Q

How do you check a retrograde ejaculation

A

If after sex the urine is hazy. The semen must have mixed in the urine

43
Q

Internal urethral sphincter

A

It involuntary closes the urine pathway so that it doesnt get diaclosed during semen ejaculation

44
Q

External urethral sphincter

A

You can control it. Kaya kaya umihi when on purposely wanted to

45
Q

Corpora cavernosa

A

Both big shit. A ttwin tissue for erection

46
Q

Corpus spongiosum

A

Here is were spongey urethra. Use for erection

47
Q

Nitric oxide

A

Important release from nerve. To get an erection

GEC 19 Human Reproduction (5 decks)

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