Christie Flashcards
what percentage of the islet cell volume do B-cells occupy?
25%
B-cells
Glucose uptake into cells are facilitated by GLUT-2
Not an action of insulin
decreases protein synthesis in muscle
Blood relatives
Insulitis
57 year old man
Loss of islet Beta Cells
Not an effect of incretins
Increase in appetite
Which pancreatic islet cells release glucagon?
Alpha
Insulin-dependent glucose uptake by skeletal muscle and adipocytes?
GLUT-4
Diabetic Hypoglycemia
- occur in Type 1 or Type 2 diabetes mellitusn
- due to insulin or oral hypoglycemic agents
Type II diabetes mellitus etiology
Metabolic
First choice of therapy for newly diagnosed Type II diabetic?
Diet therapy
Glucagon-like Peptide-1 is released from
small intestine
18 y.o
- Elevated:
- Glucose
- Free Fatty Acids
- Acetoacetic acid
Absent in MEN 1
thyroid Medullary Carcinoma
Which of the followingzones of the ovary contain the follicles?
- Cortex
At what follicular stage is the egg release?
Graafian Follicle
During what phase of the menstrual cycle does estradiol have a positive feed back on GnRH?
Mid-cycle
False about menopause
- Progesterone deficiency is associated with most of its signs and symptoms
False about follicular stage of menstraul cycle
- responsible for secretory phase of the endometrium
Non-reproductive effect of estradiol
Catabolic effect on bone
Not an action of progesterone
- During pregnancy, decreases uterine threshold to contractile stimuli
Source of increase in concentration at point D is?
corpus luteum
Wife of a friend
Endometriosis
False about Endometriosis
Distant sites are never involve
ex: heart and lungs
False about morning sickness
- Never severe enough to require hospitalization
What can be seen if there is disruption of pituitary stalk?
- All of the above
- Increase in prolactin levels
- Decrease in:
- FSH secretion
- ACTH secretion
- Drop in LH levels
Flase about human placental lactogen
Protects against fetal hyperglycemia
False about labor?
- Well defined mechanism of delivary
What is Responsible for estriol production during the second and third trimesters of pregnancy?
- Placenta
- Fetal Liver
- Fetal Adrenal Gland
Most common cause of abnormal uterine bleeding
Dysfunctional uterine bleeding
Main cause of dysfunctional uterine bleeding?
anovulatory cycle (Failure to ovulate)
T or F: Adolescent girls generally start their growth spurt later than do adolescent boys.
False
What causes premenstrual syndrome?
decreased progesterone just before menses
hCG
Uncertain Physiologic role after 9 weeks gestation
Function of syncytiotrophoblast
- Produces human chorionic gonadotropin
- Adhesion
- Invasion
- Phagocytosis
What is only secreted after implantation?
HCG
Most responsible for increased uttering contractibility near term in pregnany
- progesterone:estrogen ratio
Main source of estrogen and progesterone after 8 weeks of pregnancy:
Placenta
Which pituitary cell type is known to increase from 20% to 50% of pituitary volume during pregnancy?
Lactotroph
Blood levels of which substance are described by curve B?
Progesterone
What condition?
Abruptio Placenta
The tissue shown in this illustration is which one of the following
proliferative endometrium
