ATI TEAS: ENDOCRINE SYSTEM

Which gland serves as the primary link between the

nervous and endocrine systems?

A) Adrenal cortex

B) Pineal gland

C) Hypothalamus

D) Pancreas islets

Hypothalamus

Which of the following hormones is released by the anterior

pituitary gland to stimulate growth and cell reproduction?

A) Thyroxine

B) Adrenalin

C) Insulin

D) Growth hormone

Growth hormone

The parathyroid glands primarily regulate which mineral?

A) Sodium

B) Potassium

C) Calcium

D) Magnesium

Calcium

Which gland is responsible for regulating the body's

circadian rhythm?

A) Pineal gland

B) Thyroid gland

C) Adrenal medulla

D) Pancreas islets

Pineal gland

The outermost layer of the adrenal glands, which

produces hormones that help regulate metabolism and immune response, is known as:

A) Adrenal medulla

B) Pituitary gland

C) Adrenal cortex

Adrenal cortex

Which section of the adrenal glands releases adrenaline in

response to stress?

A) Adrenal cortex

B) Pineal gland

C) Pituitary gland

D) Adrenal medulla

Adrenal medulla

Which gland regulates the body's metabolic rate and

energy production?

A) Pancreas islets

B) Thyroid gland

C) Adrenal cortex

D) Pineal gland

Thyroid gland

Which of the following is a function of insulin?

A) Raising blood glucose levels

B) Breaking down fats

C) Increasing calcium absorption

D) Reducing blood glucose levels

Reducing blood glucose levels

Which type of feedback mechanism amplifies the effects

of a system?

A) Neutral feedback

B) Positive feedback

C) Negative feedback

D) No feedback

Positive feedback

What is the primary function of the endocrine system?

A) Physical support to the body

B) Secreting digestive enzymes

C) Producing hormones to regulate physiological processes

D) Providing immune defense against pathogens

Producing hormones to regulate physiological processes

Which structure connects the hypothalamus to the

anterior pituitary gland and is responsible for the transport of

hormones?

A) Adrenal medulla

B) Corpus callosum

C) Pineal gland

D) Infundibulum

Infundibulum

Which gland releases hormones that help the body

respond to stress and inflammation?

A) Thyroid

B) Pineal

C) Adrenal cortex

D) Pituitary

Adrenal cortex

The release of which hormone regulates the body's sleep-

wake cycle?

A) Thyroxine

B) Adrenaline

C) Melatonin

D) Insulin

Melatonin

Which of the following hormones primarily regulates the

body's calcium and phosphorus concentration?

A) Cortisol

B) Parathyroid hormone

C) Adrenaline

D) Melatonin

Parathyroid hormone

The cells of the pancreas that produce insulin are called:

A) Alpha cells

B) Beta cells

C) Gamma cells

Beta cells

What is the primary function of the hormone estrogen?

A) Increase blood sugar

B) Development of male secondary sexual characteristics

C) Regulate sleep-wake cycle

D) Development and regulation of the female reproductive system

Development and regulation of the female reproductive system

Which hormone plays a key role in the body's fight or

flight response by increasing heart rate, breathing rate, and muscle strength?

A) Oxytocin

B) Estrogen

C) Adrenaline (epinephrine)

D) Thyroxine

Adrenaline (epinephrine)

Which of the following describes a negative feedback

mechanism?

A) It amplifies the initial stimulus.

B) It neutralizes the effects of a stimulus.

C) It reverses the direction of the stimulus.

D) It stabilizes the system by reversing deviations from a set point.

It stabilizes the system by reversing deviations

from a set point.

Which hormone, released by the hypothalamus, primarily

signals the pituitary gland to release or inhibit other hormones?

A) Cortisol

B) Melatonin

C) Gonadotropin-releasing hormone

D) Adrenaline

Gonadotropin-releasing hormone

Excessive secretion of growth hormone in adults can lead

to which condition characterized by enlarged bones?

A) Dwarfism

B) Acromegaly

C) Addison's disease

D) Cushing's syndrome

Acromegaly

In which region of the adrenal gland is aldosterone

produced?

A) Adrenal cortex

B) Adrenal medulla

C) Pineal gland

D) Pancreatic islets

Adrenal cortex

The thalamus, hypothalamus, and pineal gland are all

parts of which brain structure?

A) Cerebellum

B) Brainstem

C) Basal ganglia

D) Diencephalon

Diencephalon

Which endocrine gland stores but does not produce,

hormones?

A) Thyroid gland

B) Parathyroid gland

C) Pineal gland

D) Posterior pituitary gland

Posterior pituitary gland

The release of which hormone raises blood glucose levels?

A) Insulin

B) Glucagon

C) Somatostatin

D) Thyroxine

Glucagon

Which hormone aids in the maturation of T-lymphocytes,

essential for immune response?

A) Epinephrine

B) Progesterone

C) Prolactin

D) Thymosin

Thymosin

Calcitonin, a hormone that helps regulate calcium levels

in the blood, is produced by which gland?

A) Parathyroid

B) Adrenal

C) Pineal

D) Thyroid

Thyroid

The "fight or flight" response is triggered by the release

of hormones from which part of the adrenal gland?

A) Adrenal cortex

B) Adrenal medulla

C) Pineal gland

D) Pancreatic islets

Adrenal medulla

Which of the following is a function of the endocrine

system?

A) Mechanical digestion

B) Production of body movement

C) Gas exchange

D) Regulation of metabolic activities

Regulation of metabolic activities

Which of the following is a primary effect of cortisol, a hormone produced by the adrenal cortex?

A) Increases blood sugar levels

B) Stimulates the production of red blood cells

C) Reduces inflammation

D) A and C

A and C

Which endocrine gland is butterfly-shaped and located

in the neck?

A) Parathyroid

B) Thyroid

C) Pineal

D) Pituitary

Thyroid

Which hormone is primarily responsible for regulating

the body's circadian rhythm?

A) Insulin

B) Melatonin

C) Epinephrine

D) Cortisol

Melatonin

What differentiates endocrine glands from exocrine

glands?

A) The type of hormones they produce

B) Their location in the body

C) The manner in which they release their secretions

D) Their involvement in the immune system

The manner in which they release their secretions

Which of the following hormones stimulates milk

production in the mammary glands?

A) Oxytocin

B) Progesterone

C) Prolactin

D) Vasopressin

Prolactin

In response to low blood calcium levels, which hormone

is released to stimulate the release of calcium from bone?

A) Calcitonin

B) Parathyroid hormone (PTH)

C) Insulin

D) Thyroxine

Parathyroid hormone (PTH)

Which structure connects the two lobes of the thyroid

gland?

A) Isthmus

B) Funiculus

C) Cisterna

D) Ventricle

Isthmus