Endocrine System Ch 11

Question 1

Hypotalumus

Answer 1

Secretes inhibiting hormones and releasing hormones to anterior pituitary gland

Question 2

Endocrine system

Answer 2

Provides slower longer lasting hormone secretion into and circulated by the blood

Question 3

ACTH Adrenocorticotropic Hormone acts on adrenal cortex

Answer 3

Adrenal cortex increases in size and secretes three hormones
Mineralocorticoids=MCs. Aldosterone alters sodium n potassium Fluids and electrolytes
Glucocorticoids GCs. Cortisone ( increases in stress)
Androgen= sex hormones small amt in all genders

Question 4

Thyroid gland THC

Answer 4

Secretes thyroid hormones

Question 5

Calcitonin

Answer 5

Secreted by the thyroid gland inhibits breakdown of bone causinga decrease in blood calcium level

Question 6

Parathyroid

Answer 6

Secrete parathyroid hormone which stimulates breakdown of bone mineral which increases blood calcium level

Question 7

Hypersecretion

Answer 7

Production of too much hormone by a diseased gland

Question 8

Hyposecretion

Answer 8

Production of too little Hormone

Question 9

Non steroid hormone

Answer 9

First messenger=proteins on outside of cell ( key n lock)
Second messenger= action triggered by first messenger. Alters cells activities

Question 10

Steroid hormones

Answer 10

Slower than non steroid hormones
Go through cell membrane right to nucleus
Examples:Estrogen and corticoids

Question 11

Homeostatic feedback: Negative

Answer 11

Negative feedback- reverse the direction of a change in system
Example- blood glucose regulation
Insulin

Question 12

Homeostatic feedback : positive

Answer 12

Positive feedback: uncommon mechanism
Increases a change
Example- labor (contractions)
Oxytocin