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NURB 3050 Exam 4 Questions with Correct Answers

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  • NUR 3050

NURB 3050 Exam 4 Questions with Correct Answers

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  • November 1, 2024
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  • Exam (elaborations)
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  • NUR 3050
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NURB 3050 Exam 4 Questions with
Correct Answers
Endocrine System - Answer-composed of glands that create hormones that carry out
different functions

Functions of the Endocrine System - Answer--stimulation of growth and development
- coordination of the male and female reproductive system
- maintenance of internal environment
- adaptation to emergency demands of body

What are the two systems of the primary communication and coordination? - Answer-
Endocrine and Nervous

Hormones - Answer-chemical substances that are used for communication in the
endocrine system

Glands - Answer-organs of the endocrine system

Hormones - Answer-- aka chemical messengers
- chemical substance secreted by a specific organ or tissue
- secreted in small, variable but predictable rates
- circulates in the blood
- bind to specific receptors

Hormone Functions - Answer-reproduction, response to stress, electrolyte balance,
energy metabolism, growth, maturation, and aging, regulate nervous tissue, and
influence behavior

What are two most common locations for hormone receptors? - Answer-- inside the cell
- on cell membrane

Lock and Key Mechanism - Answer-Hormones act only on cells that have receptors
specific to that hormone, because the shape of the receptor determines which hormone
can react with it.

Usually, what does hormone secretion depend on? - Answer-body's need for the final
action of that hormone

Which form of feedback is more common? - Answer-Negative

Example of Negative Feedbacl - Answer-when a body condition starts to move away
from the normal range, secretion of the hormone is capable of starting the correcting
action or response is stimulated until the need (demand) is met, and the body condition

,returns to the normal range. As the correction occurs, hormone secretion decreases
(and may halt).

Negative Feedback - Answer-the gland responds by increasing or decreasing the
secretion of a hormone based on feedback from various factors.

Which gland is known as the master gland? - Answer-pituitary gland

Hypothalamus - Answer-brain region controlling the pituitary gland

Thyroid Gland - Answer-affects metabolism, among other things

Testis - Answer-secretes male sex hormones

Pituitary Gland - Answer-secretes many different hormones, some of which affect other
glands

Parathyroids - Answer-help regulate the level of calcium in the blood

Adrenal Glands - Answer-helps trigger fight or flight response

Pancreas - Answer-Regulates the level of sugar in the blood

Ovary - Answer-secretes female sex hormones

Why is the relationship between the hypothalamus and pituitary gland important? -
Answer-Integrates communication between nervous and endocrine system

Where is the hypothalamus located? - Answer-center of brain

What are the two groups of hormones? - Answer-releasing and inhibiting

What are the two functions of the hormones of the hypothalamus? - Answer-stimulate
(release) or inhibit the secretion of hormones from the pituitary

What is the central station for stress response? - Answer-Hypothalamic-pituitary axis

Hypothalamic-Pituitary Axis - Answer-- brain sends signals to the pituitary to adrenal
glands to release cortisol

pituitary gland - Answer-- about the size of a pea
- two parts: anterior and posterior

What connects the pituitary gland to the hypothalamus? - Answer-infundibular stalk

, Which portion of the pituitary accounts for about 80% of the gland's weight? - Answer-
Anterior

What typically causes a dysfunction in the hypothalamic-pituitary axis? - Answer-
lesions, rupture or pressure from traumatic brain injury, surgical removal or stem tumors

Secretions of the Posterior Pituitary - Answer-oxytocin and ADH

Secretions of the Anterior Pituitary - Answer-growth hormone, thyroid stimulating
hormone, adrenocorticotropic hormones, gonadotropic hormones (FSH,LH), and
melanocyte-stimulating hormones

How is the anterior pituitary regulated? - Answer-by releasing and inhibiting hormones
of the hypothalamus

Hypothalamus-Hypophyseal Portal System - Answer-network of capillaries that enable
hypothalamic hormones to reach the anterior pituitary

Tropic Hormones - Answer-- control other gland hormone secretion
- TSH, ACTH, Gonadotropic Hormones (FSH, LH), MSH, GH, and Prolactin

TSH - Answer-Thyroid Stimulating hormone stimulate the thyroid gland to secrete
thyroid hormone

ACTH - Answer-adrenocorticotropic hormone stimulates the adrenal cortex to secrete
corticosteroids

FSH - Answer-follicle-stimulating hormone that stimulates secretion of estrogen and
development of ova and sperm

LH - Answer-Luteinizing Hormone that stimulates ovulation in female and secretion of
hormones in males and females

melanocyte-stimulating hormone (MSH) - Answer-- protects skin from UV rays
- development of pigmentation' control of appetite

Growth Hormone (GH) - Answer-aide in growth and development

Prolactic - Answer-Iactogenic hormone

Releasing Hormone: CRH - Answer-ACTH main target of tropic hormone ADRENAL
CORTEX which produces CORTICOSTERIODS

Releasing Hormone: TRH - Answer-TSH (thyroid stimulating hormone) main target is
the THYROID which produces Thyroid hormones

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