45 46 48 Flashcards
Neurotransmitter receptors are located on
the postsynaptic membrane
Acetylcholine influences the
autonomic targets
Neurotransmitters affect postsynaptic cells by
altering their permeability, affecting the ion
channel proteins, causing molecular changes and initiating signal transduction pathways
Androgens are
Testosterone
Iodine is needed for the thyroid
To function properly
Action potential moves more rapidly along
myelinated axons
Hyperpolarization of the neuron occurs when there is an increase in the
movement of
potassium ions out of the neuronβs cytoplasm
A simple nervous system has a flow that
moves both to and away from an integrating center
Prolactin and oxytocin
stimulate and release breast milk
Although oxytocin is related to the production of breast milk it is also responsible for
uterine
contractions
Human Chorionic Gonadotropin (HCG)
maintains progesterone and estrogen through the
beginning stages of pregnancy
The urethra carries
both semen and urine
Corpus luteum are
follicular cells left behind in the ovary after the releases of the egg
The cervix is the
junction between the upper vagina and the uterus
The cloaca is a
common exit for the digestive, excretory, and reproductive systems in
nonmammalian vertebrates