Lesson 14 Flashcards
What structure of the ear detects rotational movements
Semicircular canals
What are Endocrine glands
Ductless glands that secrete hormones directly into the bloodstream
What do hormones do
Initiate specific actions in target cells
What are tropic hormones?
What are Gonadotropins?
Where are hormones found
The bloodstream
What is saturation?
To much stimili for a target cell to respond too. Not enough receptors
3 Examples of endocrine glands
Endocrine system
Acts using hormones, can affect any cell in the body, has widespread effects, has slower but longer lasting responses
Nervous system
Faster, like a text compared to a letter.
Types of hormones
Components of Amine hormone
Modified amino acid
Components of steroid hormone
Components of peptide hormone
What does it do
where is it?
What connects the hypothalamus and the pituitary gland
Posterior pituitary hormones
Oxytocin and antidiuretic hormone (vasopressin)
Oxytocin
Uterine contractions and milk ejection
Hypothalamohypophyseal tract
Axons of neurosecretory cells
ADH
Antidiuretic hormone
ADH functions
Keeps water in our body during dehydration (mostly in kidney)
Increases blood pressure in our body through vasoconstriction
“Cuddling chemical”
Oxytocin
Anterior pituitary gland hormones
FSH, LH, ACTH, TSH, PRL, GH (growth hormone), MSH (Melanocyte-stimulating Hormone)
Why are the blood vessels of the Ant pituitary unique
Hypo Portal system :
Blood vessel - Cap - blood vessel - Cap - Blood vessel
Usually: BV - Cap - BV
Thyroid stimulating hormone
where and what
Thyroid
