Endocrine System
Which effects are longer lasting: nervous or endocrine?
endocrine
Most hormone activity is regulated by ___ feedback loops.
negative
The ___ is part of the diencephalon of the brain.
hypothalamus
promotes lactation
prolactin
adrenocorticotropic hormone (ACTH)
adrenal glands
Which effects are more immediate: nervous or endocrine?
nervous
T/F: Positive feedback loops are characterized by release of additional hormone in response to original hormone release.
true
The ___ is a butterfly-shaped organ anterior to the trachea, just inferior to the larynx.
thyroid
stimulates uterine contractions
oxytocin
glucagon
liver, adipose tissue
T/F? The target organ(s) of a hormone must be located near the releasing organ.
T/F: A hormone's effects on an organ are the same, regardless of the organ to which it binds.
false; each hormone has target organs that it specifically affects
The ___ is connected to the hypothalamus via the infundibulum.
pituitary gland
stress response
adrenocorticotropic hormone (ACTH)
growth hormone (GH)
adipose cells, bone cells, muscle cells, nervous system cells, immune system cells, and liver (for different effects)
DAILY DOUBLE: T/F? Hormones travel via specialized endocrine ducts throughout the body.
False; endocrine glands do not have ducts. Hormones travel primarily via the bloodstream.
T/F? Once a hormone is released, it remains in the body indefinitely until it is secreted via the excretory system.
false; hormones eventually degrade
The ___ does not produce hormones, but rather stores and secretes hormones produced by the hypothalamus.
posterior pituitary
promotes protein synthesis and tissue-building
growth hormone (GH)
luteinizing hormone (LH)
ovaries or testes
Name 3 organs for which their primary function is hormone secretion.
Pick 3: hypothalamus, pituitary, pineal, thyroid, parathyroid, thymus, adrenal, pancreas, ovaries, testes
DAILY DOUBLE: A hormone's target cells have specific ___ for that hormone.
receptors
The ___ is/are situated on top of the kidneys.
adrenal glands
DAILY DOUBLE: control of blood osmolarity
antidiuretic hormone (ADH)
antidiuretic hormone (ADH)
kidneys