Endo 2 Flashcards

1
Q

functional unit of exocrine pancreas

A

asinar cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what secretes pancreatic digestive enzymes

A

asinar cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what contains endocrine producing cells

A

islet of langerhans

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

beta cells

A

insulin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

alpha cells

A

glucagon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

delta cells

A

somatostatin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

insulin _____ blood glu

A

decr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

glucagon _____ blood glu

A

incr

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

somatostatin inhibits

A

insulin
glucagon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what happens if you remove pancreas

A

incr blood glu
incr FFA
incr ketones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

incretins

A

GIP
GLP1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what increases insulin

A

hyperglycemia
incretins
AAs
glucagon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what decreases insulin

A

Ne/epi
cortisol
somatostatin
fasting/exercise

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what increases glucagon

A

hypoglycemia
AA
Ne/epi/cortisol
fasting/exercise

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what decr glucagon

A

incretins
insulin
somatostatin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what modulates insulin release

A

K+-ATP channel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

leaky K+ATP channel

A

hyperpolarization
No insulin release

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

closed K+ATP channel

A

depolarization insulin release

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what is proinsulin

A

alpha chain and beta chain connected by a C peptide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what directly closes K+ATP channel

A

sulfonylureas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what indirectly closes K+ATP channel

A

incretins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

most K+ATP channels closed

A

depolarization
glucagon released

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

voltage inactivation occurs

A

when large depolarization happens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

voltage inactivation causes

A

short glucagon release followed by inactivation of glucagon release

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
is insulin anabolic or catabolic
anabolic
26
how does sk muscle uptake glucose
GLUT4
27
adipocytes inhibit
hormone sensitive lipase to promote FA storgage
28
what is different about GLUT2
not insulin-sensitive
29
sk muscle insulin effects
incr Glu incr AA
30
liver insulin effects
decr gluconeogenesis
31
adipocytes insulin effects
decr lipolysis
32
is glucagon anabolic or catabolic
catabolic
33
glucagon sk muscle effect
none
34
glucagon adipocyte effect
incr lipolysis
35
glucagon liver effect
incr glycogenolysis incr gluconeogenesis incr ketones
36
what is the function of DPP4
inactivate incretins -- decr insulin -- incr glucagon
37
DPP4 antagonist effects
incr insulin secretion decr glucagon secretion
38
normal OG
2 hrs: <140 mg/dl peak: < 200mg/dl
39
pre-diabetic/IR OG
> upper level normal < diabetes
40
diabetes OG
2 hrs: > 200mg/dL remains above 200 for 1 additional measurement
41
Type1 diabetes
autoimmune decr in beta cells resulting in low insulin == hyperglycemia
42
causes of T1d
viruses cow milk
43
insulin deficiency causes
incr glucagon - decr glu uptake - incr protein catabolism - incr lipolysis
44
insulin deficiency symptoms
dehydration acidosis severe: coma/death
45
treat insulin deficiency
insulin bicarb iv fluids +- glucose
46
insulin resistance
decr insulin receptor sensitivity decr GLUT4 translocation
47
an IR pt must secrete _____ insulin to transport glucose at same rate as non-IR pt
more
48
IR
beta cell hyperplasia: -normoglycemic - hyperinsulinemia
49
T2D early
beta cell fatigue - hyperglycemia - hyperinsulinemia
50
T2D late
beta cell failure - hyperglycemia - hypoinsulinemia
51
which stage of T2d is reversible
beta cell fatigue and insulin resistance
52
HbA1C
glycylated sugars on RBC - long term view of blood sugar
53
plasma Glu calculation
plasma Glu = (33.3x HbA1C) - 86
54
normal hba1c
6
55
normal blood gluy
114
56
very poor hba1c
>9
57
very poor blood glu
>214
58
high HgA1c risks
incr m+m risk decr neck mobility decr lung function
59
surgery effect o0n blood glu
incr glu production decr glu uptake == hyperglycemic state
60
what inhibits Glu production in liver
insulin
61
what stimulates Glu production in liver
T3/4 glucagon catecholamines cortisol GH
62
what stimulates Glu uptake in muscle/fat
insulin
63
what inhibits Glu uptake in muscle/fat
cortisol GH/IGF-1
64
is more Ca2+ in urine or feces
feces
65
incr free ca2+
acidosis
66
incr protein-bound ca2+
alkalosis
67
is more Pi in feces or urine
urine
68
incr free Pi
acidosis
69
incr protein bound Pi
alkalosis
70
hypercalcemia effects
HTN hypovolemia decr GFR short ST short QT coma
71
hypercalcemia treatment
diuretic
72
hypocalcemia effects
decr contractivity hypotension QT prolongation laryngospam C and T signs
73
hypocalcemia treatment
IV CaCl
74
hyperphosphatemia effects
AKI CAD hypocalcemia
75
hyperphosphatemia treatment
dialysis Pi-binding drugs
76
hypophosphatemia effects
decr contractility decr O2 delivery decr 2,3 DPG (R shift)
77
treat hypophsphatemia
IV Pi (emegency) oral Pi w/vitamin D
78
calcitonin
decr Ca2+
79
PTH
incr Pi incr Ca2+
80
what stimulates calcitonin
incr Ca2+
81
what incr Ca2+
incr PTH incr calitriol
82
what stimulates PTH
incr Pi
83
what does PTH stimulate
calcitriol ca2+ FGF-23
84
what stimulates FGF-23
PTH Pi calcitriol
85
what converts Vit D in the skin
UVB
86
where is VitD3 converted to calcefidiol
liver
87
where is calcifidiol converted to calcitriol
kidney
88
what enzyme converty calcefidiol to calcitriol
1 alpha hydroxylase
89
what stimulates conversion of calcefidiol to calcitirol
PTH
90
high OPG/low RANKL
bone mx
91
what triggers high OPG/low RANKL
E2 androgens
92
high RANKL/low OPG
osteoclast formation bone loss
93
what triggers high RANKL/Low OPG
PTH Vit D glucocorticoids
94
osteoclasts function
lysosome release HCl secretion
95
lysosome release function
dissolves collagen
96
HCl secretion function
dissolves hydroxyappetite
97