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- 1. Multiple ChoiceThe term for maintaining internal temperature is:ThermoregulationThermometerHomeothermalHomeostasis
- 2. Multiple ChoiceIf the calcium in your blood decreases below homeostasis levels, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up.Positive Feedback ResponseNegative Feedback Loop
- 3. Multiple ChoiceRapid growth during puberty causes your body to release more and more growth hormones. As you grow, more and more growth hormones are released until puberty is reached, and then the hormones stop.Positive Feedback ResponseNegative Feedback Loop
- 4. Multiple ChoiceHomeostasisallows for a wildly fluctuating internal environmentis impossible in vertebratesis the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulationis the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation
- 5. Multiple ChoiceWhich system sends electrical messages that helps control the body's responses to internal and external changes?nervousendocrinereproductiveintegumentary
- 6. Multiple Choice
What hormone is produced in the pancreas that lowers blood sugar?
Insulin
Glucagon
Ketones
Glucose
- 7. Multiple ChoiceThese two body systems regulate feedback mechanisms.Skeletal & MuscularSkeletal & EndocrineMuscular & NervousEndocrine & Nervous
- 8. Multiple Choice
Homeostatic cooling mechanisms include
piloerection and panting
panting and vasoconstriction
sweating and piloerection
sweating and vasodilation
- 9. Multiple Choice
Blood sugars are controlled by
brain generated chemicals
blood
hormones from the pancreas
chemicals from the liver
- 10. Multiple Choice
The hormone that makes the liver store sugars is
glucose
glycogen
glucagon
insulin
- 11. Multiple Choice
The liver normally stores blood sugar as
glucose
glycogen
glucagon
fats
- 12. Multiple Choice
Tissue fluid balance is maintained by the
bladder
kidney
liver
urine
- 13. Multiple Choice
High blood sugar levels after a meal usually stimulate
Glucagon release from the liver
Glucagon release from the pancreas
Insulin release from the liver
Insulin release from the pancreas
- 14. Multiple Choice
The action of insulin causes
The liver to secrete enzymes
The liver to make glycogen
The liver to make glucose
none of these
- 15. Multiple Choice
After a period of fasting the brain makes the pancreas produce
glucose
glycogen
glucagon
insulin
- 16. Multiple Choice
Glycogen is a
hormone
short term protein
sugar stored in the liver
sugar stored in the liver and muscles
- 17. Multiple Choice
Homeostasis mechanisms...
keep everything exactly the same.
usually operate by positive feedback systems.
act to keep the internal environmental conditions outside the normal range
is the ability to maintain a relatively stable internal environment
- 18. Multiple Choice
Which type of feedback system is more common in maintaining homeostasis?
positive
negative
neutral
balanced
- 19. Multiple Choice
This feedback system amplifies a change until a desired outcome is reached.
positive feedback system
negative feedback system
neutral feedback system
self-monitoring feedback system
- 20. Multiple Choice
This is the term used to describe a body part that provides the response needed to influence a change.
control center
effector
sensor
set point
- 21. Multiple Choice
The reaction of the effector is called..
response
sensor
stimulus
set point
- 22. Multiple Choice
A noticeable change in an organism's environment.
control center
response
stimulus
set point
- 23. Multiple Choice
What type of feedback system does the model represent?
positive
negative
neutral
glyogen
- 24. Multiple Choice
What is the stimulus in the model above?
body temperature
increase in body temperature
decrease in body temperature
blood vessels dilating
- 25. Multiple Choice
What is the sensor in the model above?
Hypothalamus
muscles
thermoreceptors
Blood vessels
- 26. Multiple Choice
What is the control center in the model above?
Hypothalamus
muscles
thermoreceptors
Blood vessels
- 27. Multiple Choice
What is an effector in the model above?
Hypothalamus
sweat glands
thermoreceptors
sweating
- 28. Multiple Choice
What is a response (not the result) in the model above?
body temperature increasing
sweat glands
thermoreceptors
sweating
- 29. Multiple Choicea body system that controls and coordinates all body activities through electric impulses/messages between brain, spinal cord and nerves.endocrine systemnervous systemnerveneuron
- 30. Multiple ChoiceIf the environment gets cold, we will often shiver in order to:keep body temperature the same as the external temperaturedecrease body temperatureincrease body temperatureregulate blood pressure
- 31. Multiple ChoiceFailure to maintain homeostasis could result in:lack of internal balanceeventual deathdifficulty carrying on metabolismall three
- 32. Multiple ChoiceThe shrinking of blood vessels, which increases blood pressurevasodialationvasoconstriction
- 33. Multiple ChoiceThe shrinking of blood vessels, which increases blood pressurevasodialationvasoconstriction
- 34. Multiple ChoiceHomeostatic blood glucose controlling enzymes are produced inthe islets of Langehans in the pancreasin the liverLoop of henle in the kidneyspituitary gland
- 35. Multiple ChoiceWhat hormone is produced in the pancreas that raises blood sugar?InsulinGlucagonKetonesGlucose
- 36. Multiple ChoiceThe name for a chemical made by glands that tell cells to make something or respond in some way.acidenzymeperspirationhormone
- 37. Multiple Choice
What is the function of the Thyroid gland
Hormones that are used to change the metabolic rate of a person's body
Hormones that are used to help you run
Hormones to help you swallow
Penguin
- 38. Multiple Choice
These are responses when body temperature rises
vasoconstriction, shivering
vasoconstriction, sweating
vasodilation, shivering
vasodilation, sweating
- 39. Multiple Choice
Why do you get warmer when exercising?
You are creating more ATP from glucose which releases heat as a byproduct
blood is flowing faster through your body
it's warm where you're working out
- 40. Multiple Choice
These are responses when body temperature drops
thyroid releases TSH to increase metabolic rate, shivering, hairs stand up, vasoconstriction
pancreas releases insulin, shivering, hairs flatten, vasodilation
thyroid releases TSH to decrease metabolic rate, shivering, hairs flatten, vasoconstriction
pancreas releases insulin, sweating, hairs flatten, vasodilation
- 41. Multiple ChoiceThis part of the neuron receives chemical messages from the neurotransmitters of other neurons.Axon TerminalDendritesMyelin SheathCell Body
- 42. Multiple ChoiceThe part of the neuron that insulates the axon and increases the speed of the neural message within the neuron.SynapseDendriteMyelin SheathAxon Terminal Button
- 43. Multiple ChoiceThis part of the neuron stores then releases neurotransmitters into the synapse.AxonDendriteMyelin SheathAxon Terminal
- 44. Multiple ChoiceThe correct direction of the neural impulse within one neuron.Axon Terminal to DendriteDendrite to Axon TerminalCell Body to AxonAxon Terminal to Cell Body
- 45. Multiple ChoiceADendriteAxonAxon TerminalCell Body
- 46. Multiple ChoiceBDendriteAxonAxon TerminalCell Body
- 47. Multiple ChoiceCSynapseSomaAxon TerminalMyelin Sheath
- 48. Multiple ChoiceDSynapseAxonAxon TerminalDendrite
- 49. Multiple ChoiceA chemical produced by neurons that carries messages to other neuronsmyelin sheathneurotransmitteraxonaxon terminal
- 50. Multiple Choice
Neurons carrying information from the CNS to the viscera and/or muscles and glands
sensory neurons
interneurons
motor neurons
association neurons
- 51. Multiple ChoiceWhat element is needed to produce proper amounts of Thyronine (T3) and Thyroxine (T4)?IodineIronCalciumZinc
- 52. Multiple ChoiceInsulin is secreted by:α-cells in the Islets of Langerhansβ-cells in the Islets of Langerhansβ-cells in the pancreatic medullaα-cells in the pancreatic cortex
- 53. Multiple ChoiceGlucagon is secreted by:α-cells in the Islets of Langerhansβ-cells in the Islets of Langerhansβ-cells in the pancreatic medullaα-cells in the pancreatic cortex
- 54. Multiple ChoiceThe gland that controls regulation of metabolic rate is the:ThyroidParathyroidsPancreasAdrenal Glands
- 55. Multiple ChoiceHormones that enter cells directly to cause changes are usually:SteroidsProteins
- 56. Multiple Choice
The beta cells of the pancreas are stimulated during hyperglycemia to produce:
glucagon
insulin
calcitonin
PTH
- 57. Multiple Choice
ADH is produced where?
Thyroid
Adrenal cortex
Posterior pituitary
Pineal
- 58. Multiple Choice
Which is NOT a function of the nervous system?
responding to information
making blood cells
receiving information on the environment
maintaining homeostasis
- 59. Multiple Choice
Which system is responsible for voluntary actions like jumping?
somatic nervous system
temporal system
autonomic nervous system
limbic system
- 60. Multiple Choice
Controls long term changes such as growth
limbic system
endocrine system
nervous system
temporal lobe
- 61. Multiple ChoiceWhich of the following terms means insufficient sugar in the blood?hypercalcemiahyponatremiahyperkalemiahypoglycemia
- 62. Multiple ChoiceWhich of the following is a function of the Endocrine System?growth and developmentmaintaining homeostasisresponse to stress and injuryall of the above
- 63. Multiple ChoiceWhich of the following hormones is responsible for regulation of water balance?Antidiuretic hormoneOxytocinInsulin
- 64. Multiple Choice
These chemical messengers circulate through the blood.
Neurotransmitters
Hormones
- 65. Multiple ChoiceWhen a bat flew into Chris' hair, she panicked and her heart started racing. Her ____ was activated.Somatic Nervous SystemSympathetic Nervous SystemParasympathetic Nervous SystemCentral Nervous System
- 66. Multiple Choice
Which hormone is released during a "fight or flight" response?
Serotonin
Acetylcholine
Epinephrine (Adrenaline)
Insulin
- 67. Multiple ChoiceWhat is the difference between nervous & endocrine communication?Endocrine takes longer, but lasts longer than nervousNervous takes longer, but lasts longer than endocrineBoth nervous & endocrine use neurotransmitter moleculesNeither type use molecules to communicate
- 68. Multiple Choice
How do hormones ensure that they travel to and communicate with the correct cells/tissues?
Hormones travel between the synapses of neurons and communicate with the tissues
Hormones travel throughout the bloodstream and only communicate with the tissues that have the correct receptors
hormones travel throughout the bloodstream and communicate with all the cells they come in contact with
Hormones travel throughout all the tissues of the body and are not specific
- 69. Multiple Choice
What hormone from the endocrine system & part of the peripheral nervous system work together in the "fight or flight" response?
Adrenaline & parasympathetic nervous system
adrenaline & sympathetic nervous system
cortisol & parasympathetic nervous system
cortisol & sympathetic nervous system
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