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LS12 - Life Sciences > The human reproductive system > Flashcards

The human reproductive system Flashcards

1
Q

Puberty

A

-reproductive organs grow to adult size -become functional

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2
Q

Reproductive system matures in humans…

A

During puberty 10-14 years for girls 12-16 years for boys

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3
Q

Sex hormones

A

Testosterone Oestrogen

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4
Q

Testosterone function in males

A

Stimulates reproductive organs to develop Sex drive Secondary sexual characteristics

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5
Q

Male primary sex organs

A

Gonads or testes Epididymis Bulbourethral gland Prostrate gland Seminal vesicle Penis

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6
Q

Male secondary sexual characteristics

A

Deep voice (enlarged larynx) Hair growth all over body (especially armpits, pubic region and beard) Enlarged skeletal muscles Heavier skeleton

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7
Q

Female primary sex organs

A

Ovaries Fallopian tubes Uterus Cervix Vagina Vulva

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8
Q

Function of testes in males

A

Make sperm by spermatogenesis Testosterone production

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9
Q

Secondary sexual characteristics in females

A

Breasts Growth underarm and pubic hair Widening of hips

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10
Q

Secondary sexual characteristics

A

Characteristics are features that distinguish the two sexes of a species Not directly part of the reproductive system

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11
Q

External sac holding testes

A

Scrotum

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12
Q

Location where sperm produced in testes

A

Seminiferous tubules

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13
Q

Interstitial cells

A

Produce testosterone in the testes

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14
Q

The physical process whereby sperm are released

A

Ejaculation

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15
Q

Semen includes

A

Sperm Secretions from: Seminal vesicle Prostrate gland Bulbourethral gland

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16
Q

A sensitive region of the penis covered by retractable skin, the foreskin

A

Glans

17
Q

The three main regions of a sperm cell

A

Headpiece Midpiece Tail

18
Q

Spermatogenesis

A

The process of producing mature sperm in the testes

19
Q

Hormones regulating spermatogenesis

A

Follicle stimulating hormone (FSH) Testosterone

20
Q

Follicle-stimulating hormone is secreted by…

A

The pituitary gland

21
Q

Spermatogonia

A

Cells in the outermost layer of the seminiferous tubules (in testes) Form stem cells for sperm production

22
Q

Cells involved in the stages of making sperm (spermatogenesis)

A

Spermatogonia Stem cells Primary spermatocyte Four haploid spermatids Late spermatids (developing) Sperm

23
Q

Cell division that results in gametes

A

Meiosis

24
Q

Follicles involved in oogenesis

A

Primary follicle Growing follicle Graafian follicle (Ovulation) Ruptured follicle Corpus luteum

25
Q

Vagina function

A
  1. Passageway for menstrual blood to leave the body 2. Receives penis and semen during copulation 3. Passageway for baby delivery

LS12 - Life Sciences (33 decks)

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