5 Written questions
5 Matching questions
- Antagonistic Hormones
- Positive Feedback
- Target Cells
- Release-Inhibiting Hormone
- a Specific cells that hormones travel to, to produce a specific effect.
- b Another way to maintain homeostasis is a positive feedback loop. In this process, release of an initial hormone stimulates release or production of other hormones or substances which stimulate further release of the initial hormone.
- c Many hormones work together in pairs to regulate the level of critical substances. These hormones have opposite effects.
- d These inhibit production and secretion of anterior-pituitary hormones.
- e Excessive insulin causes this, a disorder that causes glucose to be stored rather than used and properly delivered to body cells. This leads to lowered blood glucose concentrations and subsequent release of glucagon and epinephrine. Symptoms include lethargy, dizziness, nervousness, overactivity, and in extreme cases, unconsciousness and death.
5 Multiple choice questions
- The endocrine glands and specialized cells as a whole.
- The ovaries in females, and the testes in males. These are gamete-producing organs that also produce a group of steroid sex hormones. Sex hormones regulate body changes that begin at puberty.
- Specialized cells in the pancreas that act as an endocrine gland. They secrete two amino acid-based hormones that regulate the level of sugar in the blood. The hormones are insulin and glucagon.
- Nerve cells that secrete hormones. The axons of these cells in the hypothalamus extend into the posterior lobe of the pituitary. Oxytocin and ADH are transported through these axons into the posterior pituitary where they are stored for eventual release into the bloodstream.
- Secrete substances through ducts (basically tubes). These substances can be water, enzymes, and mucus.
5 True/False questions
Endocrine Glands → Ductless organs that secrete hormones either into the bloodstream or into the extra-cellular fluid or liquid around the cell.
Steroid Hormones → Substances that are released by cells that act to regulate the activity of other cells in the body.
Negative Feedback → One way to maintain homeostasis inside an organism or cell, is a negative feedback loop. In this process the final step in a series of events inhibits the initial signal in the series.
Amino Acid-Based Hormones → Hormones made of amino acids. They can be a single modified amino acido or a protein made up of 3-200 amino acids. They are usually water soluble.
Glucagon → A hormone secreted by digestive cells that stimulates other stomach cells to release digestive enzymes such as hydrochloric acid.