Anatomy & Physiology Chapter 7

C

Hormones produced by the ___ are derived from molecules to which iodine atoms have been attached A) parathyroid B) pancreas C) thyroid D) thymus

D

Hormones released via the posterior pituitary are made by cells of the A) anterior pituitary B) infundibulum C) posterior pituitary D) hypothalamus

D

Hypothalamic hormones that stimulate the synthesis and secretion of one or more hormones in the anterior lobe are called A) synergistic hormones B) regulating hormones C) stimulating hormones D) releasing hormones

D

In persons with untreated diabetes mellitus A) excessive thirst is shown B) polyuria occurs C) blood and urine glucose levels are very high D) all of the above

C

Inability of the pancreas to produce insulin results in A) Addison's Disease B) diabetes insipidus C) diabetes mellitus type 1 D) diabetes mellitus type 2

A

Insulin causes A) conversion of glucose to glycogen in the liver and skeletal muscles B) decreased amino acid absorption C) decreased rate of glucose transport into target cells D) increased breakdown of fats to fatty acids in adipose tissue

C

The endocrine system A) is not involved in homeostasis B) releases neurotransmitters into the bloodstream for distribution throughout the body C) relies on the release of chemicals that bind to target cells D) is regulated mainly by positive feedback

B

Which of the following is the pancreatic hormone that is released when blood glucose levels rise? A) cortisol B) insulin C) GH D) glucagon

C

A rise in the glucocorticosteroid levels causes which of the following A) a rise in the production of both ACTH and CRH B) a rise in the production of ACTH and a decline in CRH C) a decline in the production of both ACTH and CRH D) a decline in the production of ACTH and a rise in CRH

C

Alpha cells are to ___ as beta cells are to __ A) glucagon; somatostatin B) insulin; glucagon C) glucagon; insulin D) somatostatin; insulin

D

An important second messenger in hormonal action is A) protein kinases B) calcium C) calcitriol D) cAMP

A

Cells of the adrenal cortex produces A) corticosteroids B) ADH C) insulin D) epinephrine

C

Steroid hormones A) are proteins B) are secreted by the hypothalamus and pituitary gland C) are structurally similar to cholesterol D) include pancreatic hormones

D

The outer zone of the adrenal cortex produces A) glucocorticoids B) epinephrine C) androgens D) mineralcorticosteroids

B

The release of parathyroid hormone is controlled by A) thyroid hormone B) blood calcium ion levels C) cellular oxygen consumption D) TSH

A

Thyroid hormones are derived from the amino acid A) tyrosine B) thyroxine C) lysine D) leucine

D

Two hormones referred to as gonadotropins are A) GH and TSH B) PRL and OT C) ADH and ACTH D) FSH and LH

B

Which of the following hormones enter a cell by diffusion A) glycoproteins B) steroid hormones C) peptide hormones D) releasing hormones

B

Insulin is produced by the __ cells of the ___ A) acinar; pancreatic ducts B) alpha, Pancreatic Islets C) alpha, pancreas D) beta, Islets of Langerhans

B

The hormone most affected by changes in fluid osmotic concentrations A) ACTH B) ADH C) GH D) Cortisol