Medical Quiz

Endocrine System Quiz


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Secreted by cells in a local area; influences the activity of the same cell or cell type from which it was secreted.

A. Autocrine

B. Paracrine

C. Neurotransmitter

D. Endocrine


Are hormones that increase male characteristics.

A. Adrenal Cortex

B. Adrenal Medulla

C. Androgens


Means within

A. Endo-

B. Epi-

C. Hypo-


Made up of nervous tissue that is stimulated by the sympathetic nervous system to secrete two hormones: Epinephrine and Norepinephrine (NE).

A. Adrenal Cortex

B. Adrenal Medulla

C. Androgens


Blood-borne chemicals can directly stimulate the release of some hormones.

A. Humoral Stimuli

B. Neural Stimuli

C. Hormonal Stimuli


Produces parathyroid hormone (PTH) and are more numerous and smaller than oxyphil cells.

A. Principal Cells

B. Dean Cells

C. Teacher Cells


Present in the fetus but atrophies during fetal development.

A. Intermediate Lobe

B. Ear Lobe

C. Follicle Lobe

D. Fetal Lobe


Beta cells secrete what?

A. Glucagon

B. Insulin


Produced by a wide variety of tissues and secreted into the extracellular fluid; has a localized effect on other tissues.

A. Autocrine

B. Paracrine

C. Neurotransmitter

D. Endocrine


Synthesize thyroglobulin, a thyroid hormone precursor stored in colloid.

A. Follicle Cells

B. Hollicle Cells

C. Bollicle Cells

D. Dollicle Cells


Most common example by hormonal stimuli from the anterior pituitary gland.

A. Tropic Hormones

B. Receptors

C. Receptor Site

D. Specificity


Has two lobes with a connecting isthmus and lies on both sides of the trachea near the thyroid cartilage (Adam’s apple) of the larynx.

A. Thyroid Gland

B. Pituitary Gland

C. Pineal Gland

D. Adrenal Gland


It is glandular and can be divided histologically into three layers, each layer secreting a different hormone.

A. Adrenal Cortex

B. Adrenal Medulla

C. Androgens


Are male gonads that not only produce sperm but also produce and secrete androgens, primarily testosterone.

A. Testes

B. Ovaries

C. Thymus

D. Thymosin


Also called C cells; located between the follicles which synthesize and secrete calcitonin.

A. Follicular Cells

B. Parafollicular Cells


Are female gonads that not only produce and house the ova as they mature but are also endocrine organs that produce two major hormones: Estrogen and Prgesterone

A. Testes

B. Ovaries

C. Thymus

D. Thymosin


It is the outermost layer whose cells are arranged in little columns. Secretes mineralcorticoids, with aldosterone being the main hormone secreted.

A. Zona Glomerulosa

B. Zona Fasciculata

C. Zona Reticularis


Polar molecules, they include protein hormones, peptide hormones, and most amino acid derivative hormones.

A. Lipid-Soluble-Hormones

B. Water-Soluble-Hormones


Hormone produced by thymus?

A. Thymosine

B. Thymosin

C. Thyrosine

D. Thyroxin


Located inferior to the thalamus in the brain; an important component of both the nervous and endocrine systems and couples these two regulatory systems together.

A. Hypothalamus

B. Pituitary Gland

C. Thymus

D. Pineal Gland


Islets of Langerhans, are located as little islands among the clusters of acini cells.

A. Pancreatic Islets

B. Hundred Islands

C. Pineal Islets


The innermost layer and has the branching cords.

A. Zona Glomerulosa

B. Zona Fasciculata

C. Zona Reticularis


It causes changes in activity in these target cells and directs a variety of cellular activities to keep the body in homeostasis.

A. Hormones

B. Pituitary Gland

C. Hypothalamus

D. Thalamus


Following action potentials, neurons release a neurotransmitter into the synapse with the cells that produce the hormone.

A. Humoral Stimuli

B. Neural Stimuli

C. Hormonal Stimuli


Also called Neurohypophysis

A. Anterior Pituitary

B. Posterior Pituitary




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