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WorksheetsThe Endocrine System
Total questions: 35
Worksheet time: 32mins
The purpose of the endocrine system is to
maintain homeostasis by reacting quickly to stimuli
produce substances that protect the body from bacteria
maintain metabolism, growth and development in homeostasis
transport molecules throughout the body
This part of the brain that links the nervous system and the endocrine system.
Pancreas
Hypothalamus
Pituitary gland
Pineal gland
The process by which an organism’s internal environment is kept stable in spite of changes in the external environment.
Positive Feedback
Negative Feedback
Homeostasis
Targeted Cells
The chemical product of an endocrine gland.
Homeostasis
Hormone
Nerve Cell
Neurotransmitter
Which gland secretes insulin?
Pancreas
Ovaries
Pituitary
Thymus
Hormone regulation operates under which type of feedback mechanism?
positive feedback
negative feedback
zero feedback
Hormones are not regulated
Feedback loops are important because they allow organisms and the environment to
change based on new inputs
fall apart
change based on new outputs
maintain balance
You hit a growth spurt and find that you've grown three inches over the summer! What gland is involved in this scenario?
Pituitary
Pancreas
Thymus
Throughout the year you've found that you feel tired and sluggish and you've put on some extra weight. What gland might be the cause of this?
Pituitary
Thyroid
Adrenal
After eating a sugary snack you feel an incredible rush in energy followed by a crash and exhaustion. The gland responsible for this is the ________.
Adrenal
Pituitary
Pancreas
Produces the hormone insulin and glucagon, which controls the level of glucose in the blood.
Thyroid Gland
Pancreas
Thymus Gland
Pituitary Gland
These release testosterone, which controls changes in a male's body and regulates sperm production.
Ovaries
Target Cells
Parathyroids
Testes
The process by which an organism’s internal environment is kept stable in spite of changes in the external environment.
Positive Feedback
Negative Feedback
Homeostasis
Targeted Cells
The Adrenal gland secretes the following except:
cortisol
ADH
epinephrine
aldosterone
Which of the following is NOT true of the pancreas?
It is located in the abdominal cavity
It contains the Islet of Langerhans
It is found superior to the thyroid
It produces insulin and glucagon
When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue growing until the cut is closed.
Positive Feedback Response
Negative Feedback Loop
What is an example of a negative feedback mechanism?
Which of the following scenarios describes a positive feedback mechanism?
After childbirth, high levels of prolactin induce lactation in the mother. During nursing, infant suckling triggers the release of more prolactin, which further stimulates lactation.
After eating, blood glucose levels rise, stimulating the release of insulin from the pancreas. Insulin causes cells to uptake glucose from the blood, lowering blood glucose levels.
several hours after a meal, blood glucose levels begin to drop, prompting the pancreas to secrete glucagon. Glucagon causes the liver to convert stored glycogen into glucose, raising blood glucose levels.
During exercise, an increase in body temperature causes the body to produce sweat. As the sweat vaporizes, the body cools down due to evaporative cooling.
