Chapter 27: the male reproductive system

Question 1

What are gametes?

Answer 1

they are sex cells
eggs = females
sperm = males

Question 2

What is a zygote?

Answer 2

it’s when an egg and sperm meet and combine their genes create a fertilized egg

Question 3

What are the two things that are necessary for reproduction to be successful?

Answer 3

1. Gamete motility so they can achieve contact (performed by sperm/spermatozoon)
2. enough cytoplasm to divide up into the first cells of a developing embryo, with intracellular nutrients to sustain it until it begins to receive external nutrition. (performed by ovum/egg)

Question 4

Why cant a single sex cell perform both roles necessary for reproduction to be successful optimally?

Answer 4

Because to contain ample cytoplasm means to be relatively large and heavy, and this is inconsistent with the need for motility

Question 5

What is the purpose of the reproductive system in males

Answer 5

The male serves to produce sperm and introduce them into the female body.

Question 6

What is the purpose of the reproductive system in females?

Answer 6

It produces eggs, receives the sperm, provides a place for the union of these gametes, harbors the fetus, gives birth, and nourishes the offspring

Question 7

What are the primary sex organs? (aka gonads)

Answer 7

Organs that produces gametes:
testes in males
ovaries in females

Question 8

What are secondary sex organs?

Answer 8

organs other than gonads that are necessary for reproduction.

Question 9

What are secondary sex organs in males?

Answer 9

In the male, they constitute a system of ducts, glands, and the penis. They assist in sperm storage, survival, and delivery.

Question 10

What are secondary sex organs in females?

Answer 10

the uterine tubes, uterus, and vagina/ They assist in uniting the sperm and egg and harboring the fetus.

Question 11

According to location, what are the two ways reproductive organs are classified as?

Answer 11

External and internal genitalia.

Question 12

Where are external genitalia located?

Answer 12

they are located in the perineum (the gooch, between the anus and scrotum).

Question 13

Where are the internal genitalia located?

Answer 13

mainly in the pelvic cavity, except for the male testes and some associated cuts contained in the scrotum.

Question 14

What are the external genitalia in males?

Answer 14

the penis and scrotum

Question 15

What are the internal genitalia in males?

Answer 15

testes
epididymides
ductus deferens
seminal vesicles
prostate
bulbourethral glands

Question 16

What are the external genitalia in females?

Answer 16

mons pubis (rounded mass of fatty tissue found over the pubic symphysis of the pubic bones.)
labia majora
labia minora
clitoris
vaginal orifice
vestibular bulbs
vestibular glands
paraurethral glands

Question 17

What are internal genitalia in females?

Answer 17

ovaries
uterine tubes
uterus
vagina

Question 18

What are secondary sex characteristics?

Answer 18

features that further distinguish the sex and play a role in mate attraction.