Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332



Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem

Match the term listed at left with the most suitable description at right.

_____ adrenal medulla a. makes sex hormones
_____ thyroid gland b. source or melatonin
_____ posterior lobe of the pituitary c. secretes hormones made in the hypothalamus
_____ pancreatic islet d. source or epinephrine
_____ pineal gland e. secretes insulin, glucagon
_____ gonad f. function requires iodine

Summary Introduction

To match: The term with suitable description at right.


Adrenal medulla: d. source of epinephrine.

Adrenal medulla is the innermost part of the adrenal gland. It secretes a hormone known as epinephrine which is also known as adrenaline. Epinephrine hormone plays a major role in flight-or-fight response of the body. Its production increases the blood flow, and increases the blood sugar level, and pupil dilation.

Thyroid gland: f. function requires iodine.

Thyroid gland is a gland that produces thyroid hormones. Thyroid hormones are required for the maintenance of metabolic activity of body cells. However, there is a trace element, iodine acts as a substrate for the synthesis of the hormones. The thyroid hormones like thyroxine and triiodothyronine require three and four iodine molecules respectively for their synthesis.

Posterior lobe of the pituitary: c. secretes hormones made in the hypothalamus

Pituitary gland is an endocrine gland that consists of two parts namely- anterior lobe and posterior lobe. Posterior lobe of the pituitary glands mainly stores and secretes the hormones (oxytocin and antidiuretic hormone) that are made in the hypothalamus.

Pancreatic islet: e. secretes insulin, glucagon

The blood glucose or sugar level in our body is maintained by certain hormone called insulin and glucagon produced by beta cells and alpha cells of pancreas respectively...

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