הרצאה 17

Question 1

מקור תאי סרטולי

Answer 1

coelomic surface epithelial cells (coelomic lining) differentiate into Sertoli cells

Question 2

מקור ה

rete testis

Answer 2

Sertoli cells organize into a set of thin walled ducts called the rete testis

Question 3

מקור ה

efferent ducts

Answer 3

the tubules of the mesonephros begin to degenerate, except for the those tubules that lie adjacent to the rete testis cords. Those mesonephric tubules survive and transform into the ductuli efferentes

Question 4

Tunica Albuginea.

Answer 4

Coelomic epithelium is separated from the testis cord by connective tissue called the Tunica Albuginea.

Question 5

מקור ה

testis cords

Answer 5

coelomic surface epithelial cells differentiate into Sertoli cells and invade deeply into the underlying mesenchyme, to form the testis cords and envelop the germ cells

Question 6

סוגי התאים העיקריים באשך

Answer 6

PGC’s, Sertoli cells, and Leydig cells

Question 7

The testis cords are comprised of

Answer 7

PGC’s and Sertoli cells

Question 8

Seminiferous tubules

מקורם ב

Answer 8

During embryogenesis, the testis cords are solid, but at puberty they become hollow to become the Seminiferous tubules

Question 9

תפקידיהם של תאי סרטולי

Answer 9

invade into the mesenchyme to form the primitive sex cords.

Products of the Sertoli cells control development of the testis

provide important support for the developing PGC’s after puberty.

Question 10

Leydig cells are derived from

Answer 10

the mesenchyme of the gonad

Question 11

Leydig cells

הם

Answer 11

endocrine cells that produce the male sex steroid hormone Testosterone

-

Question 12

Leydig cells

נמצאים ב

Answer 12

They lie between the testis cords.

Question 13

מקור ה

Mesonephros

Answer 13

Intermediate mesoderm

Question 14

mesonephric duct

הופך ל

mesonephric duct undergo transformation into a system of organs: The mesonephric duct caudal to the efferent ductules becomes very coiled to form the epididymis, more distally it develops into Vas deference. Near its insertion into the urogenital sinus, the the mesonephros develops a branch which forms the seminal vesicle.

Answer 14

tubules that lie adjacent to the rete testis cords - efferent ductules

caudal to the efferent ductules becomes very coiled to form the epididymis

more distally - vas deferens

Near its insertion into the urogenital sinus- seminal vesicle

Question 15

Vas deferens

מקורו ב

Answer 15

mesonephric duct

intermediate mesoderm

Question 16

epididymis

מקורו ב

Answer 16

mesonephric duct

intermediate mesoderm

Question 17

seminal vesicles

מקורם ב

Answer 17

mesonephric duct

intermediate mesoderm

Question 18

Primordial germ cells

מקורם ב

Answer 18

epiblast at the caudal end of the embryo