Diabetes Flashcards

1
Q

Diabetes mellitus

A

Absolute type 1 or
relative deficiency of insulin type II

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2
Q

Classic signs of diabetes mellitus

A

Polydipsia
Polyuria
Polyphagia
Weight loss

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3
Q

Where does insulin come from

A

Pancreas —> islets of langerhans —> beta cell

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4
Q

Pancreas
Exocrine

A

Secrete digestive enzymes and HCO3- into intestinal lumen

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5
Q

Pancreas
Endocrine

A

Islets of langerhans into blood stream
insulin & glucagon

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6
Q

GLUT 2

A

Independent of insulin also found in liver
Bidirectional

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7
Q

Sympathetic nerve insulin secretion

A

Stress and exercise
Inhibit insulin

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8
Q

Parasympathetic activity insulin secretion

A

Food
Stimulate insulin

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9
Q

a cells

A

Glucagon — stimulates

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10
Q

& cells

A

Somatostatin — inhibit

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11
Q

Islets communications
Humoral

A

Blood supply from islet to blood
More blood through islets can increase secretions

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12
Q

Islet communication
Cell-cell

A

Gap junctions connect islets cells with one another

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13
Q

Main function of insulin

A

push glucose into cells from BLOOD
Drives anabolic processes
Building up fat, protein, and glycogen

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14
Q

Lipogenesis

A

Acetyl-CoA —> fats
During fed stage when glucose gets high

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15
Q

Lipolysis

A

Breakdown of lipids
during starved phase, makes ketone bodies

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16
Q

Gluconeogenesis

A

Non-carbohydrate substrates —> glucose
make new glucose
during starved phase

17
Q

Glycolysis

A

Glucose —> pyruvate + 2 ATP

18
Q

In the liver what pathways do not predominate after feeding
A. Lipolysis
B. Glycogenesis
C. Glycogenolysis
D. Gluconeogenesis
E. Ketone body formation

A

B – all the rest do. Liver also does LIPOGENSIS–make fat

19
Q

In the muscle what pathway is NOT active after feeding
A. Glycolysis
B. Gluconeogenesis
C. Glycogenolysis
D. Increased glucose transport
E. Protein synthesis

A

C muscle does NOT produce new glucose.
But it will breakdown and make glycogen.

20
Q

What hormone is released from the pancreas? After fasting
A. Insulin
B. Glucagon
C. Insulin and GLP-1
D. Insulin and Glucagon

A

B also somatatropin

21
Q

In adipose tissues what pathways predominate after fasting
A. Fatty acid breakdown
B. Increase glucose transport
C. Glycogenesis
D. Fatty acid synthesis

22
Q

In the liver what pathways are activated after fasting
A. Lipolysis
B. Glycogen synthesis
C. Lipogenesis
D. Ketone body formation

23
Q

GLP-1

A

Stimulates insulin response from beta cells in a glucose
Released from L cells in ileum and colon

24
Q

GIP

A

Stimulates insulin response from beta cells in a glucose
Released from K cells in duodenum

25
What hormone is release from the pancreas? After feeding A. GLP-1 B. Glucagon C. Insulin D. GLP-1 and somatostatin E. Insulin and Glucagon
C
26
In the liver what pathways is not active in type 1 diabetes A. Lipolysis B. Glycogenesis C. Glycogenolysis D. Gluconeogenesis E. Keaton body formation
B
27
In the muscle what pathway predominates A. Glycolysis B. Glycogenesis C. Lipogenesis D. Increased glucose transport E. Protein degradation
E. protein builds or breaks down muscles.
28
What type of diabetes is more in cats and does not always need insulin to treat?
Type II
29
What type diabetes more in dogs, needs insulin to treat, auto immune?
Type I
30
What type of type II diabetes is due to get fat and having less insulin needed to push into cells because they do not respond?
Insulin resistance
31
What type of Type II diabetes is the cells giving out and not producing enough insulin?
Relative Insulin deficiency
32
What are the difference in acinar cells and langerhans cells of pancreas?
acinar cells produce bicarbonate and are exocrine (released into lumen of intestine) Langerhans cells are endocrine and release hormoens glucagon a& insulin into bloodstream
33
1. after short-term fasting, what hormone is released from the pancreas? A.Insulin B.Glucagon C.Insulin and Somatostatin D.Insulin and Glucagon
B. Glucagon. to make glucose from glycolysis and glyconeogensis
34
2. after short-term fasting, what pathway predominates in the liver? A.Glycolysis B.Glycogen synthesis C.Lipogenesis D.Ketone body formation
Glycolysis. need to make glucose for body. Not make GLYCOGEN. break it down
35
. Can you describe the pathophysiology of DKA?
Diabetic ketoacidosis. body doesn't have enough insulin to put glucose into the cells so breaks down fats-lypolysis uses that for energy. releases ketone boy so ketoacidosis