WorksheetsENDOCRINE SYSTEM - QUIZ
Total questions: 20
Worksheet time: 10mins
____Are released by cells that have effects on other cell types near the cells from which they were released.
Autocrine chemical messengers
Paracrine chemical messengers
Pheromones
Neurotransmitters
What is the correct description of autocrine chemical messengers?
Stimulates the cell that originally secreted it
Secreted by glands and cells, act on target tissues distant from their source
Stimulated by one cell; act locally on nearby cells
Secreted by neurons; secreted into a synaptic cleft
Neurotransmitters __________.
Stimulates the cell that originally secreted it
Secreted by glands and cells, act on target tissues distant from their source
Stimualted by one cell; act locally on nearby cells
Secreted by neurons, secreted into a synaptic cleft
Endocrine chemical messengers_________________.
Stimulates the cell that originally secreted it
Secreted by glands and cells; act on target tissues distant from their source.
Stimulate by one cell, act locally on nearby cells
Secreted by neurons, secreted into a synaptic cleft.
Paracrine chemical messengers_________.
Stimulates the cell that originally secreted it
Secreted by glands and cells; act on target tissues distant from their source.
Stimulated by on cell; act locally on nearby cells
Secreted by neurons; secreted into a synaptic cleft
Which of the following is not a regulatory function of the endocrine system?
Regulates the rate of metabolism
Regulates water balance by controlliing the solute concentration of the bood
Regulates satiation and the breakdown of food into individual nutrients
Regulates skeletal muscle contraction strength
One of the functions of endocrine system is it regulates Na, K, and Ca levels in the blood.
Metabolism
Control of food intake
Water balance
Ion regulation
Endocrine system function in controlling solute concentration of the blood
Uterine contractions
Control of food intake
Metabolism
Water balance
_______ Are chemical signals secreted into the blood where they travel to distant target cells
Paracrine chemical messengers
Autocrine chemical messengers
Hormones
Pheromones
Endocrine glands.
Secrete chemical signals called neurotransmitters
secrete their products into ducts
include the salivary glands
Secrete their chemical signals into the blood
Exocrine glands differ from endocrine glands in that exocrine glands
Only secrete salts
Secrete only into the urine
Secrete only into the bloodstream
Secrete through ducts or tubes to the bodys exterior.
Hormones
Are produced in large quantities by most cells.
Usually only affect cells close to those that produce the hormone
Bind only to cells that have receptors for that specific hormone
Are either lipid or polysaccharide molecules
Hormones can_____.
Aid membrane transport
help regulate water and electrolyte balance and blood pressure
have functions in growth reproduction and development
All of the choices are correct.
Water soluble hormones
bind to membrane bound receptors in the cell membrane of the target cell.
Include a class of hormones called eicosanoids
include hormones derived from lipids
bind to receptors within the nucleus of the target cell
Select the statement that are true regarding the mechanism of action of steroid hormones.
Receptor proteins are located in either the cytoplasm or the nucleus and can regulate the transcription of particular genes in the target tissue.
Receptor proteins are only located in the nucleus and can regulate the transcription of particular genes in the target tissue
Steroid hormones maintain hormone levels in the blood through positive feedback loops only
Steriod hormones maintain hormone levels in the blood through negative feedback loops only.
Most hormones are taken up and degraded by the _____ and ______.
bone marrow, liver
liver, kidney
spleen, liver
spleen, kidney
Secretion of hormones is controlled by
the concentration of some chemicals in the blood
neural input
tropic hormones
All of the choices are correct
Which of these statements is false concerning regulation of hormone secretion?
Hypothalamic inhibiting hormones stimulate the release of some tropic hormones from the anterior pituitary gland
The secretion of some hormones is controlled by the nervous system
The secretion of some hormone is controlled by negative feedback or positive feedback mechanisms
The secretion of some hormones is directly controlled by another hormone
The hypothalamus secretes ______, which are classified as _____hormones, whereby they increase the secretion of an anterior pituitary hormone, or________hormones, whereby they decrease the secretion of an anterior pituitary hormone
Neurohormones, releasing, inhibitory
Regulatory hormones, releasing, transferring
Stimulatory hormones, secretory, inhibitory
Hormones, inhibiting, releasing
Testosterone
is secreted by the hypothalamus
stimulates the adrenal cortex to produce adrenal and androgens
secretion is stimulated by hormones from the posterior pituitary.
has a negative feedback effect on the hypothalamus and anterior pituitary
