Endocrine Glands

Endocrine glands differ from exocrine glands in that

• A.endocrine glands are ductless and exocrine release at the body's surface or into ducts.
• A.endocrine glands release hormones whereas exocrine release waste.
• endocrine glands are formed by epithelial tissue, but exocrine glands are primarily connective tissue.
• endocrine glands are all interconnected; whereas exocrine glands act completely independently.

How does a hormone transfer to the target cell?

• The hormone is sent as an electrical signal through the nervous system.
• The hormone is secreted externally through ducts. 
• The gland will secrete the hormone into the blood stream and it will travel to target organ or cell.
• It is secreted as mucus and proteins into target cell.

For the endocrine system, The relatively constant internal environment of the body is maintained by

• negative feedback mechanism
• positive feedback mechanism
• metabolism
• peripheral nervous system

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NGSS.HS-LS1-3

What is the relationship between the hypothalamus and the endocrine system?

• It is referred to as the "master gland"
• It is close in proximity to many glands.
• It secretes the thyroid stimulating hormone which is very important in  metabolism.
• The actions of the pituitary gland is controlled by the hypothalamus.

The secretion of parathyroid hormone is controlled primarily by the

• hypothalamus
• concentration of blood calcium
• thyroid gland
• pituitary gland

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NGSS.HS-LS1-3

Insulin causes

• a decrease in the concentration of blood glucose
• a decrease in the permeability of cell membranes to glucose
• an increase in the production of glucose from glycogen
• none of these is correct

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NGSS.HS-LS1-3

Which of the following has both endocrine and exocrine functions (it is a "mixed" gland)?

• pancreas
• anterior pituitary gland
• liver
• thyroid gland

The hormone that causes calcium to be deposited in bone is

• calcitonin
• parathyroid hormone
• thyroxine
• insulin

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NGSS.HS-LS1-3

Oxytocin is sometimes administered to women to

• stimulate milk production
• stimulate uterine contractions
• stimulate uterine relaxation
• stimulate ACTH production

A person with an abnormally low metabolic rate, who is overweight and is lacking in energy

• hypothyroidism
• hyperthyroidism
• hypoparathyroidism
• hyperparathyroidism

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NGSS.HS-LS1-3

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