Chapter 19: Reproduction

Question 1

_____ is the process by which a single cell duplicated its genetic Material. Otherwise known as Mitosis.

Answer 1

Reproduction

Question 2

____ _____ enables us to maintain ourselves.

Answer 2

Cellular Reproduction

Question 3

A fertilized egg is also known as a

Answer 3

Zygote

Question 4

Cellular Division that produces the sex cells is called

Answer 4

Meiosis

Question 5

How many chromosomes does one gamate (Sex cell; e.g. Sperm/Egg) contain.

Answer 5

23

Question 6

How many chromosomes does a zygote contain?

Answer 6

46

Question 7

What is the purpose of the Reproduction System

Answer 7

To produce Offspring

Question 8

What are the primary sex organs of the male reproductive system?

Answer 8

Testes/Gonads

Question 9

_____ is an outpouching of the abdominal wall, and is the supporting structure of the testes.

Answer 9

Scrotum

Question 10

Externally, the scrotum appears as a signle pouch of skin separated into lateral portions by a median ridge known as the ____

Answer 10

Raphe

Question 11

A ______ separates the scrotum into two sacs.

Answer 11

Septum

Question 12

The ____ muscle located in the spermatic cord, contracts and elevates the testes during exposure to cold, so that the testes may come closer to the pelvic cavity and absorb more body heat.

Answer 12

Cremaster

Question 13

Dense layer of white fibrous connective tissue covering the testes that divides each teste into a number of smaller, internal compartments known as lobules.

Answer 13

Tunica Albuginea

Question 14

Each lobule contains three tightly coiled tubules called

Answer 14

Convoluted Seminiferous tubules

Question 15

The Seminiferous Tubules produce the sperm by a process called

Answer 15

Spermatogenesis

Question 16

Immature Sperm cells are called

Answer 16

Spermatogonia

Question 17

The daughter cells of the Spermatogonia, created by mitosis are called

Answer 17

Primary Spermatocytes

Question 18

The Primary spermatocytes undergo the cellular reduction division called

Answer 18

Meiosis

Question 19

After the Primary Spermatocytes endure the first stage of Meiosis, they are now considered ______ ________ , and their chromosomes are reduced from 46 to 23.

Answer 19

Secondary Spermatocytes

Question 20

After the Secondary Spermatocytes go through the second stage of Meiosis, they are then called _______. These eventually mature into sperm cells.

Answer 20

Spermatids

Question 21

These cells produce secretions that supply nutrients for the developing sperm cells.

Answer 21

Sertoli

Question 22

Mature Sperm cells are also called

Answer 22

Spermatozoa

Question 23

This produces testosterone

Answer 23

Interstitial cells of Leydig

Question 24

Spermatozoa are produced at a rate of

Answer 24

300 million per day.

Question 25

Sperm cells have a life expectancy of ______ after leaving the gonads.

Answer 25

48 hours

Question 26

The _____ of the sperm cell is developed from the nucleus of a spermatid cell and contains the genetic material.

Answer 26

head

Question 27

The _____, which is found on the head of the sperm cell, contains enzymes that aid the sperm cell in penetrating the covering of the female egg cell or ovum.

Answer 27

Acrosome

Question 28

The middle piece or _______ of the sperm cell contains numerous mitochondria, which produce ATP that provides the energy for locomotion.

Answer 28

Collar

Question 29

The tail of the sperm cell is called

Answer 29

Flagellum

Question 30

Network of ducts found in the Testes

Answer 30

Rete Testes

Question 31

When the sperm cells are ready to exit the Testes, they go through a series of efferent ducts, and empty into a single tube known as the _____ ________

Answer 31

Ductus Epididymus

Question 32

The _______ is a comma-shaped structure located along the posterior border of the testes that contains the Ductus Epididymus

Answer 32

Epididymis

Question 33

After the Epididymis, the sperm is ready to be ejaculated from the next tube which is known as the ____ ____

Answer 33

Ductus Deferens, also known as the Vas Deferens, or also known as the Seminal Duct.

Question 34

The ________ _________ is a connective tissue sheath that encloses the Vas Deferens.

Answer 34

Spermatic Cord

Question 35

The end of the vas deferens has a dilated terminal portion known as the

Answer 35

Ampulla