Endocrine System Flashcards

1
Q

what is a similarity between the endocrine and nervous system

A

both are internal communication systems

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2
Q

what are functions are the controlled by ES

A

conception
gestion
parturition
metabolism
digestion
immune response
growth and development
puberty and aging
emotion

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3
Q

what do hormones do

A

help body adapt to constant changing internal and external environments

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4
Q

what are the 2 kinds of hormones

A

steroids and proteins

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5
Q

what are steroid hormones

A

made of lipids, secreted by adrenal cortex and gonads

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6
Q

what are protein hormones

A

secreted by pituitary gland, thyroid, pancreas, and adrenal medulla

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7
Q

what is the hypothalamus

A

main conductor of the system, link between ES and NS

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8
Q

what does the hypothalamus do

A

maintain control of organs,
control and regulate putuitary
control sexual behavior
influence emotional behavior

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9
Q

where is the pituitary gland located

A

base of brain

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10
Q

what do the pituitary gland do

A

controls many endorine glands

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11
Q

what does the anterior lobe secrete

A

GH
LH
FSH
TSH
ACTH

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12
Q

what does the posterior lobe secrete

A

ADH and ocxycotin

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13
Q

what is a common dysfunction of the the posterior lobe

A

cushings

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14
Q

what are syptoms of cushings

A

curly coat
repeated lamenitis
excessive sweating
lethargy
increased urine
enlarged abdomine

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15
Q

where are adrenal glands located

A

1 on each side

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16
Q

what does the outer cortex do

A

secretes cortiocosteroids, growth hormones, androgens

17
Q

what does the inner medulla secretes

A

catechloamines - epinephrine and neoeprinehprine

18
Q

what is the main function of thyroid gland

A

convert iodine from blood to thyroxine

19
Q

what are sympotoms of hyopthyroid

A

decreased metabolism
lethargy
hair loss
weight gain

20
Q

what are symptoms of defiencies in thyroxine

A

dull hair coat
sensitive to cold
lethargy
failure to produce milk

21
Q

where is the pineal gland

A

above and behind the thalamus

22
Q

what does the pineal gland secrete

A

melatonin

23
Q

what is renin

A

produced by kidneys
starts cycle for water absoroption for restoring bllod volune

24
Q

how does regular exercise affect the body

A

stimulates production of hormones
: more circulating hormones in the body affects stamina, agility, courage, ability to carry rider

25
Q

how does over training affect the body

A

leaves horse anxious and depressed, lower energy and immunity

26
Q

what is TSH

A

produced by anterior lobe of pituitary and stimulates thyriod to produce thyroid hormone

27
Q

what is FSH

A

produced by anterior lobe of pituitary

stimulates follicule in mare ovary to develop and enlarges for heat cyle

28
Q

where is gasterine released

A

stomach

29
Q

what is LH

A

stimulates ovulation, stimulates celles of testes to produce testosterone

30
Q

what is oxytocin

A

produced by anterior lobe and indices uterine contraction during sperm transportation, burth and to induce milk let down for foals

31
Q

differences of ES and NS

A

ES:
slow communication
chemical messengers (hormones)
effects are long lasting
regulated by hypothalamus

NS:
fast communication
electrical and chemical impulses from nueron to neuron
affects are short term
regulated by CNS