Final Exam Chapt 11- 12 Flashcards
1
Q
- Develops from the intermediate mesoderm
- Develops a urogenital ridge
Extends along 7th to 28th somite level
A
Urinary System
2
Q
- 7th - 10th somite level
- “head kidney”
- Open tubules
- External glomeruli
- 4 tubules
A
Pronephroi (pre-kidney)
3
Q
- Function briefly
- 10th -26th somite level
- Closed tubules
- Internal glomeruli
- Tubules retained in the male for reproductive system
A
Mesonephroi (middle kidney)
4
Q
- Closed tubules
- Internal glomeruli
- 26th -28th somite level
- Ureteric bud
- Renal pelvis
A
Metanephroi (permanent kidney)
5
Q
- Structure “neck” continuous w/ cloaca
- This structure becomes ligamentous when bladder develops
- In fetus - urachus
- In adult - median umbilical ligament
A
Allantois
6
Q
What type of congenital cystic kidney?
- found in infants
- Early death- unless postnatal dialysis or kidney transplant
- Giant kidneys- sponge kidneys
- Symmetrically enlarged
A
Type 1
7
Q
What type of congenital cystic kidney?
- See in clinic
- Manifest - adult
- Present before birth : onset is 40yrs. death by 50 if not treated
- Low back pain
- kidney infections
A
Type 5
8
Q
- Inetmediate mesoderm origin
- genital ridge
- Sex or germ cells from the yolk sac
- Travel to the genital ridge to become: primary sex cord
A
Reproductive system
9
Q
- W/ testosterone determining factor (TDF)
- the MALE cortex:
A
Cortex regresses & medulla develops
10
Q
- W/ testosterone determining factor (TDF)
the FEMALE cortex
A
Cortex develops & medulla regresses
11
Q
Male retain mesonephric ducts for the male reproductive system:
A
Epididymis
12
Q
Females develop paramesonephric ducts:
A
- Y shaped
- Develop - uterus & vagina
13
Q
- Ovarian Hypoplasia
- 45, XO or 45, X
- Short stature
- Bilateral - NOT fertile
- Some germ cells migrate but after birth maternal hormone influence is lost
- Unilateral - FERTILE
A
Turner’s Syndrome
14
Q
- Appears to be female
- External genitalia = female
- Shallow vagina
- Presence of testes in abdominal area
- Body cells do NOT respond to testosterone
- Chromatin Negative= MALE
A
Androgen insensitivity
