science Flashcards

1
Q

“Humans begin their lives as a

A

single cell

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2
Q

contain genetic information which carries unique inherited traits such as skin color or hair color.

A

chromosomes

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3
Q

Each sex cell, which has ?? chromosomes, is a haploid,

A

23

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4
Q

a sex cell with 46 chromosomes is a ?

A

diploid

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5
Q

After the fusion of the egg and the sperm, the resulting fertilized egg, known as

A

zygote

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6
Q

how many chromosomes does azygote contain?

A

46

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7
Q

produces sperm cells (male gametes) and delivers them inside the female reproductive system.”

A

male reproductive system

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8
Q

what are the primary functions of the male reproduction system?

A

To produce, maintain, transport and nourish sperm and protective fluid (semen)
To discharge sperm within the female reproductive tract
To produce and secrete male sex hormones

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9
Q

it contains the chromosome.

A

head

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10
Q

what is the cap of the head called?

A

acrosome

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11
Q

stores the enzymes needed to penetrate an egg cell during fertilization.

A

acrosome

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12
Q

it contains the mitochondria that supply the energy needed to propel the sperm through the female tract.

A

midpiece

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13
Q

a powerful flagellum that enables the sperm cell to move.

A

tail

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14
Q

the male reproductive organ for sexual intercourse and urination.

A

penis

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15
Q

it is where semen and urine leave the penis through the urethra

A

penis

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16
Q

This tube allows urine to pass outside the body.

A

urethra

17
Q

signals the bladder muscles to tighten, which squeezes urine out of the bladder.

A

brain

18
Q

responsible for making testosterone, the primary male sex hormone, and for producing sperm

A

testis

19
Q

it has a protective function including the maintenance of optimal temperatures for sperm survival and function.

A

scrotum

20
Q

a long, coiled tube that rests on the backside of each testicle. It transports and stores sperm cells that are produced in the testes

A

epididymis

21
Q

it transports mature sperm to the urethra in preparation for ejaculation.

A

vas deferens

22
Q

a pair of glands found in the male pelvis, which function to produce many of the constituent ingredients of semen. They ultimately provide around 70% of the total volume of semen

A

seminal vesicle

23
Q

its primary function is to produce the fluid that nourishes and transports sperm (seminal fluid).

A

prostate gland

24
Q

it produces a clear, slippery fluid that neutralizes the acidity of the urine residue in the urethra, helps to neutralize the acidity of the vagina, and provides some lubrication for the tip of the penis during intercourse.

A

bulbourethral gland

25
Q

The release are semen from the penis during intercourse is known as

A

ejaculation

26
Q

The two male reproductive organs that produce most of the fluids that make up semen are called

A

seminal vesicle

27
Q

the seminal vesicle gives how many percent of volume to the sperm?

A

70%

28
Q

For sperm development the testes must maintain a slightly ??? than normal body temperature.

A

cooler

29
Q

Another name for the sex cell is

A

gamete

30
Q

What becomes filled with blood and hardens during intercourse?

A

penis

31
Q

The substance produced by the seminal vesicles and prostate gland is known as

A

semen

32
Q

Which part of the male reproductive system transfers sperm into the woman?

A

penis