Question 1

________ Associated with chordee

Accepted Answer

Chordee is most commonly associated with penile hypospadias, a congenital condition in which the urethral opening is not located at the tip of the penis.

Question 2

________ Epoöphoron

Accepted Answer

The answer of  ________ Epoöphoron
...

Question 3

________ External spermatic fascia

Accepted Answer

The external spermatic fascia is a layer of connective tissue that surrounds the spermatic cord and testis. It is derived from the external oblique aponeurosis, which forms one of the layers of the abdominal wall musculature.

Question 4

________ Primary sex cords in males

Accepted Answer

The primary sex cords in males are the seminiferous tubules, also known as the rete testis. The other options listed are not directly involved in the formation of the male reproductive system.

Question 5

________ Gives rise to the suprarenal cortex

Accepted Answer

The suprarenal cortex arises from the coelomic epithelium, which is the outer layer of cells surrounding the embryonic gonad. Adrenal hyperplasia and penile hypospadias are unrelated conditions. The zona reticularis is a layer within the suprarenal cortex, not the structure from which it arises. Neuroectoderm gives rise to cells of the nervous system.

Question 6

________ Primordium of the suprarenal medulla

Accepted Answer

The primordium of the suprarenal medulla develops from neural crest cells and is indicated by the arrow pointing to structure C. Structures A, B, D, and E are not related to the development of the suprarenal medulla.

Question 7

________ Gives rise to the interstitial cells

Accepted Answer

The answer of  ________ Gives rise to the interstitial...

Question 8

________ Hypospadias

Accepted Answer

Hypospadias is a common anomaly of the urethra (occurring in about 1:300 males)resulting from failure of fusion of the urogenital folds.In some cases,the labioscrotal folds also fail to fuse and result in severe forms of hypospadias (e.g. ,penoscrotal and perineal hypospadias).This arrest of development is the result of an inadequate production of androgens by the fetal testes.

Question 9

________ Differentiates after birth

Accepted Answer

The zona reticularis is a layer of the adrenal cortex that produces androgens after birth, which differentiates males from females. Adrenal hyperplasia is a condition where the adrenal glands produce too many androgens, leading to virilization. Penile hypospadias is a congenital defect where the opening of the urethra is on the underside of the penis instead of at the tip. Neuroectoderm and coelomic epithelium are tissues involved in embryonic development, but do not differentiate after birth in the same way as the adrenal cortex.

Question 10

________ Ambiguous external genitalia

Accepted Answer

Adrenal hyperplasia is a medical condition that causes the adrenal gland to produce excessive amounts of androgens, which can lead to ambiguous external genitalia. The other choices (B-E) do not directly relate to the development of ambiguous external genitalia.

Question 11

________ Gartner duct cyst

Accepted Answer

The answer of  ________ Gartner duct cyst
...

Question 12

________ Primordium of the suprarenal cortex

Accepted Answer

The answer of  ________ Primordium of the suprarenal cortex
...

Question 13

________ Give rise to the oogonia

Accepted Answer

The answer of  ________ Give rise to the oogonia
...

Question 14

________ Suprarenal medulla

Accepted Answer

The suprarenal medulla is derived from the neural crest cells, which originate from the embryonic ectoderm. Therefore, the correct answer is neuroectoderm.

Question 15

________ Unfused urogenital folds

Accepted Answer

In males, the urogenital folds normally fuse to form the urethral tube and the penis. Hypospadias is a birth defect in which the urethral opening is on the underside of the penis, indicating that the urogenital folds did not completely fuse during development. Adrenal hyperplasia is a condition involving excess growth of the adrenal glands, the zona reticularis is a layer of the adrenal cortex that produces sex hormones, neuroectoderm is a type of embryonic tissue that gives rise to the nervous system, and coelomic epithelium is a layer of cells that line the coelom, a body cavity in embryonic development.

Question 16

________ Gives rise to the clitoris

Accepted Answer

The genital tubercle gives rise to the clitoris in females and the penis in males during fetal development.

Question 17

________ Primary sex cord

Accepted Answer

The answer of  ________ Primary sex cord
...

Question 18

________ Derivative of the gubernaculum

Accepted Answer

The answer of  ________ Derivative of the gubernaculum
...

Question 19

________ Degenerates in females

Accepted Answer

The question doesn't provide any context, but based on the given information it is impossible to determine whether the answer is A or not. Therefore, the best choice is to simply guess A as it cannot be ruled out as a possibility.

Question 20

________ Derivative of the urogenital sinus

Accepted Answer

The answer of  ________ Derivative of the urogenital sinus
...

Quiz 1: Gametogenesis and Fertilization