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Physiology > Repro: Male Reproductive > Flashcards

Repro: Male Reproductive Flashcards

0
Q

Coiled tube of 6 meters long. Enables motility of sperm for _______.

A

Epididymis. 18-24 hrs.

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1
Q

Contains seminiferous tubules

A

Testis

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2
Q

Stores sperm. Its Ampulla.

A

Vas deferens

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3
Q

Walnut shaped

A

Prostate gland

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4
Q

Forms the Ejaculatory duct with the ampulla of the vas deferens

A

Seminal vesicles

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5
Q

External connection of testis to the external environment. Supplied with mucus derived ___________ & _________.

A

Urethra. Urethral glands & Bulbourethral glands.

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6
Q

Formation of sperm. Occurs ins seminiferous tubules. Occurs throughout life and starts at puberty at around _____.

A

Spermatogenesis. 13 years.

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7
Q

Originates from the primary ectoderm and migrates to the yolk sac; eventually, it finds its way into the testis.

A

Primordial germ cell

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8
Q

Undergoes mitotic divisions, upon crossing the barrier to the Sertoli layer, enlarges and become the _________.

A

Spermatogonia. Primary spermatocytes.

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9
Q

Formation of mature sperm cell from

A

Spermatids

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10
Q

Undergoes Meiosis I to become _____________.

A

Primary spermatocyte. Secondary spermatocyte.

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11
Q

Meiosis I is the separation of

A

Homologous chromosome

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12
Q

Meiosis II is the separation of

A

Sister Chromatids

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13
Q

Duration of entire Meiosis process

A

74days

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14
Q

Proliferate by mitotic cell division inside the testis

A

Spermatogonia

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15
Q

Hormone that affects growth and division of spermatogonia

A

Testosterone

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16
Q

Hormone that stimulates secretion of testosterone

A

LH

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17
Q

Hormone that aids in conversion of spermatids to sperm

A

FSH

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18
Q

Hormone that is for background metabolism of testis

A

Growth hormone

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19
Q

Hormones affecting Spermatogenesis

A

GH, FSH, Estrogen, LH & Testosterone “G FELT”

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20
Q

Composition of semen: 10% from

A

Sperm from vas deferens

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21
Q

Composition of semen: 30% from

A

Fluid from prostate gland

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22
Q

Composition of semen: 60% from

A

Fluid from seminal vesicle

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23
Q

Reacts with female cervical mucus. Causes reverse peristalsis in female genital tract.

A

Fluid from seminal vesicles

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24
Fluid from seminal vesicle contains
Citric acid, Fibrinogen, Fructose & Prostaglandin "CFFP"
25
Alkalinizes the semen
Fluid from prostate gland
26
Fluid from the prostate gland contains
Calcium, Citrate, Clotting enzymes, Phosphate & Profibrinolysin "CCC PP"
27
In Capacitation: uterine and fallopian tube washes away ___________. Sperm loses _________. And sperm membrane becomes more permeable to _________.
Inhibitory factors of sperm. Cholesterol cap. Calcium.
28
Enables the sperm to penetrate the ovarian granulosa cells. Mediated by __________ & ____________.
Acrosome reaction. Hyaluronidase & Proteolytic enzymes.
29
Factors affecting male fertility
Temperature, Sperm count & Sperm morphology "TSS"
30
Normal sperm count
35M to 200M/mL
31
Abnormal sperm count
<20M/mL
32
Sperm morphology: as much as ____ have abnormal morphology. May be morphologically normal but ________.
1/2. Dysfunctional.
33
Undescended testes d/t temperature variations
Cryptorchidism
34
Male sexual act may be due to what kind of stimulus
Neuronal
35
Male sexual act results from inherent reflex mechanism integrated in the _______ & _______ spinal cord.
Sacral & Lumbar.
36
Sexual sensation signaling flow
Glans penis-Pudendal nerve-Sacral plexus in SC-Undefined areas in the brain "GPS U"
37
Male sexual act may also be caused by internal structures such as
Bladder & Prostate
38
Can also enhance the ability to engage in sexual act
Psychic stimuli
39
Stages of male sexual act
Penile erection, Lubrication, Emission/Ejaculation and Resolution
40
Contraction of the vas deferens and ampulla to cause expulsion of sperm into urethra
Emission
41
Wave-like and rhythmical contraction of urethra to expel semen to the external environment
Ejaculation
42
Emission and Ejaculation is due to sympathetic nervous system (___-___), ______ and ______ sympathetic nerve plexus.
T12-L2. Hypogastric. Pelvic.
43
Erection ceases
Resolution
44
Due to parasympathetic nervous system. Causes the bulbourethral gland to secrete mucus.
Lubrication
45
Due to parasympathetic nervous system. Release of ___ which activates ________. _____ relaxes the arteries of the penis.
Penile erection. NO. Guanylyl cyclase. cGMP.
46
ANS control of emission and ejaculation
Sympathetic nervous system
47
ANS control of lubrication stage
Parasympathetic nervous system
48
ANS control of penile erection
Parasympathetic nervous system
49
Any hormones that has masculinizing effects
Androgens
50
Examples of androgens
Dihydrotestosterone, Androstenedione & Testosterone "DAT"
51
Effects of testosterone: causes develoment of
Male external genitalia
52
Effects of testosterone: causes _______ of testis.
Descent
53
Effects of testosterone: development of adult ________ & ______ characteristics.
Primary & Secondary
54
Effects of testosterone: growth of ______ & ______.
Hair & Baldness.
55
Effects of testosterone: hypertrophy of
Larynx
56
Effects of testosterone: increases thickness of _____ & development of _____.
Skin. Acne.
57
Effects of testosterone: increases _____ formation and _____ development.
Protein. Muscle.
58
Effects of testosterone: increases _________ & cause _______ retention.
Bone matrix. Calcium.
59
Effects of testosterone: ____ BMR.
Increases
60
Effects of testosterone: Increases what blood component
RBC
61
Effects of testosterone: good effect on ______ & _____ balance.
Water & Electrolyte.
62
Hormones that are responsible for regulation of Male Reproductive system
FSH, LH, Inhibin, GNRH & HCG "FLIG H"
63
Decrease in male sexual function. Hot flushes, suffocation & psychic disorder.
Male climacteric
64
Inability to develop or maintain an erection or sufficient rigidity for satisfactory sexual intercourse. Impotence.
Erectile dysfunction
65
Causes of erectile dysfunction: trauma to the _______ due to _______.
Parasympathetic nerves from prostate surgery
66
Causes of erectile dysfunction: deficient levels of
Testosterone
67
Causes of erectile dysfunction: due to some drugs
Alcohol, Nicotine & Antidepressants "ANA"

Physiology (4 decks)

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