Flashcard 1

Question 1

what is the lipostatic theory

Answer 1

food intake is determined by fat stores

Question 2

describe methods used by the body during a period of starvation

Answer 2

adipose tissue -> FAs
FAs can be readily used as energy by most tissues
Liver converts FAs to ketone bodies for brain

Question 3

glycogen

Answer 3

• multi branched polysaccharide that serves as main form of energy storage

Question 4

conditions that could cause obesity

Answer 4

• hypothyroidism
• Cushings
• diabetes
• certain drugs (e.g. steroids)

Question 5

autocrine hormone example

Answer 5

cytokine

Question 6

Islets of Langerhans found where?

Answer 6

Endocrine Pancreas

Question 7

when not to use HbA1C as a marker for glucose levels

Answer 7

• children
• recent pancreatic surgery
• in hospital
• suspected type 1
• symptoms for <2 months

Question 8

how are GH and IGF-1 transported and why

Answer 8

bound to carrier protein in blood because provides a reservoir in blood

Question 9

anabolic

Answer 9

small-> large

store energy

Question 10

primary intermediate used by GH

Answer 10

IGF-1 (insulin like growth factor)

Question 11

plethoric

Answer 11

excessively full of bodily fluid (normally blood)

Question 12

what is HbA1c

Answer 12

glycated haemoglobin. gives indication of blood glucose levels over last 8-12 weeks

Question 13

what secretes somatostatin

Answer 13

D cells of pancreas

Question 14

stimuli that promote glucagon release

Answer 14

exercise
anxiety
low BG
high AAs
sympathetic innervation

Question 15

what secretes IGF-1

Answer 15

primarily liver

Question 16

purpose of L hand and wrist x-ray in a child with growth abnormalities

Answer 16

bone shape abnormalities can indicate chronic conditions

Question 17

what happens to GH secretion throughout life and why?

Answer 17

continues because dead/ damaged cells are constantly needing replaced/ repaired/ maintained

Question 18

only tissue types that are insulin dependant

Answer 18

muscle and fat

Question 19

5 hypothalamic releasing hormones

Answer 19

thyrotropin
corticotropin
growth hormone RH
gonadotropin
prolactin

Question 20

what do gamma Is of Ls produce

Answer 20

somatostatin