spermatogenesis

Question 1

process BEGINS AT PUBERTY and constantly throughout a man’s life

Answer 1

Spermatogenesis

Question 2

Spermatogenesis occurs in the ________ that form the bulk of each testis

Answer 2

seminiferous tubules

Question 3

process of spermatogenesis begins with _______ of the _______.

Answer 3

mitosis, diploid spermatogonia

Question 4

How long does it take for one production
cycle, from spermatogonia to sperm, to take
place?

Answer 4

64 days

Question 5

Three phases of spermatogenesis

Answer 5

Spermatocytogenesis
Meiosis
Spermiogenesis

Question 6

phase where germ cells (spermatogonium) DIVIDE MITOTICALLY to REPLACE THEMSELVES and to
PRODUCE CELLS that begin differentiation

Answer 6

Spermatocytogenesis (Mitosis)

Question 7

FIRST MEIOTIC DIVISION of cells are in

Answer 7

prophase

Question 8

Cells in prophase of the FIRST MEIOTIC DIVISION are ______

Answer 8

primary spermatocytes

Question 9

what go through the first meiotic division and BECOME SECONDARY SPERMATOCYES

Answer 9

Spermatocytes

Question 10

process by which the diploid number of chromosomes present in spermatogonia (the germ cells) is REDUCED TO THE HAPLOID NUMBER present in mature spermatozoa

Answer 10

Meiosis

Question 11

products of the second meiotic division are called

Answer 11

spermatids

Question 12

METAMORPHOSIS of spherical spermatids
into elongated spermatozoa.

Answer 12

Spermiogenesis

Question 13

t/f

in Spermiogenesis, no further mitosis or meiosis occurs

Answer 13

t

Question 14

During spermiogenesis, the _______ forms,
the ________ forms, and most
________ (the residual body) is
separated and left in the ______

Answer 14

acrosome, flagellar apparatus, excess cytoplasm, Sertoli cell

Question 15

Spermatozoa are released into the ______ of
the seminiferous tubule

Answer 15

lumen

Question 16

Sertoli Cell in Spermatogenesis SECRETE ______ that promote sperm production

Answer 16

SIGNALING MOLECULES

Question 17

Sertoli Cell has also been called the _____ or
______ cell

Answer 17

“mother” or “nurse”

Question 18

Sertoli Cell form what barrier

Answer 18

BLOOD-TESTIS BARRIER

Question 19

Provide factors necessary for the successful progression of spermatogonia (germ cells) into spermatozoa (sperm).

Answer 19

Sertoli Cell

Question 20

Helps in development and maturation of
sperm cells

Answer 20

Sertoli Cell

Question 21

Sertoli Cell provide protection to ____

Answer 21

germ cells

Question 22

Sertoli Cell have receptors for _____ and _____

Answer 22

follicle stimulating hormone, testosterone

Question 23

t/f

follicle stimulating hormone (FSH) and testosterone are the main hormonal regulators of spermatogenesis.

Answer 23

t

Question 24

Hormones involved in Spermatogenesis

Answer 24

Testosterone
Follicle Stimulating Hormone (FSH)
Luteinizing hormone (LH)

Question 25

hormone that has the ability to STIMULATE SERTOLI CELL mitosis during testicular development

Answer 25

FSH

Question 26

t/f Both FSH and LH exert synergistic actions on germ cells,

Answer 26

f Both FSH and TESTOSTERONE

Question 27

hormone that has a SPECIFIC ACTION on the later stages of spermatid maturation.

Answer 27

testosterone