Embryology Review Questions Set 1

Question 1

What layer of tissues is the does the processus of vaginalis is derived from?

Answer 1

The folding of parietal peritoneum.

Question 2

What surrounds the testis as tunica vaginalis?

Answer 2

processus vaginalis

Question 3

What portion of the tunica processus vaginalis contributes to the tunica vaginalis?

Answer 3

Distal end

Question 4

If the entire processus vaginalis persists, what will form?

Answer 4

Congenital inguinal hernia

Question 5

What disorder causes absence of the testes? also known as undescended testes

Answer 5

Cryptorchidism

Question 6

What structure release products in the bloodstream to cause hypertension and affect secretory cells? (no response to antihypertensive drugs)

Answer 6

Cells of neural crest origin that migrated to the adrenal medulla.

Question 7

Where does the vaginal plate arise from?

Answer 7

sinovaginal bulbs

Question 8

Failure of canalization of vaginal plates result in:

Answer 8

persistent vaginal plate and thus imperforate hymen

Question 9

What is a hymen and its job in reference to the vaginal canal?

Answer 9

The hymen is a fold mucous membrane that covers the vaginal canal.

Question 10

Processus vaginalis in females precedes the descent of :

Answer 10

round ligament

Question 11

Failure of the development of sinovaginal bulbs will result in:

Answer 11

The absence of a vagina

Question 12

Cervical atresia and androgen insensitivity syndrome would result in:

Answer 12

Amenorrhea

Question 13

Amenorrhea is:

Answer 13

the absence menstruation

Question 14

What is responsible for the development of the ureter?

Answer 14

Ureteric bud

Question 15

Early splitting of the ureteric bud results in:

Answer 15

the formation of a second ureter on the ipsilateral side

pain radiates from back to pubic region

Question 16

failure of the ureteric bud to form will cause complete absence of:

Answer 16

Ureter

Question 17

Urine leaking from the anterior abdominal wall is due to what malformation?

Answer 17

persistent patent urachus that runs from the bladder to the umbilicus

Question 18

Adrenal gland (suprarenal glands) is directly innervated by?

Answer 18

Preganglionic sympathetic fibers ONLY

Question 19

Fluid around the testes (hydrocele) is due to:

Answer 19

Patent vaginalis

Question 20

Failure of descent of one or both testes in the scrotum:

Answer 20

cryptorchidism

Question 21

True hermaphroditism is due to:

Answer 21

the presence of both testicular and ovarian tissue

Question 22

What occurs from errors in sexual differentiation leading to contrasting phenotypes?

Answer 22

pseudohermaphroditism

Question 23

What is chord?

Answer 23

congenital ventral or dorsal curvature of th penis