Emilee Gallt Word Scramble

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Question	Answer
In the endocrine system, secreting cells send hormones to signal specific	target cells.
In _____, one hormone produces the opposite effect of another hormone.	antagonism
Hormones can be classified as either	steroid or nonsteroid
Which of the following statements is true?	Unused hormones usually are quickly excreted by the kidneys.
According to the hypothesis, steroid hormone receptors are not attached to the plasma membrane, but seem to move freely in the nucleoplasm.	mobile-receptor
The control of hormonal secretion is usually part of a(n)	negative feedback loop
Nonsteroid hormones include	proteins. peptides. glycoproteins.
When a small amount of hormone allows a second hormone to have its full effect on a target cell, the phenomenon is called	permissiveness
Not all nonsteriod hormones operate according to the second messenger model. The exception is the pair of thyroid hormones called	thyroxine and triiodothyronine.
If synthesis of new receptors occurs faster than degradation of old receptors, the target cell will have more receptors and thus be more sensitive to the hormone. This phenomenon is called	up-regulation
Eicosanoids are a unique group of lipid molecules that include	prostaglandins. thromboxanes. leukotrienes.
As a group, prostaglandins are involved in overall endocrine regulation through their influence on	adenyl cyclase interaction within the cell’s plasma membrane.
Which tissue hormones act as regulators, synthesize blood platelets, and are important in blood clotting?	thromboxanes
Which tissue hormones act as regulators of immunity?	leukotrienes
The adenohypophysis is divided into which two parts?	pars anterior and pars intermedia
The stem-like stalk that connects the pituitary gland to the hypothalamus is the	infundibulum
Which hormone develops the breasts during pregnancy in anticipation of milk secretion?	prolactin
The formation and activity of the corpus luteum result from the secretion of	luteinizing hormone.
Antidiuretic hormone and oxytocin are stored and released by the	neurohypophysis.
The body’s “biological clock” is supported by the	pineal gland.
Which hormone increases calcium storage in bone?	calcitonin
The primary function of aldosterone is	sodium homeostasis
_____ accelerate(s) the breakdown of proteins into amino acids.	Glucocorticoids
Which pancreatic hormone tends to promote the movement of glucose, amino acids, and fatty acids out of the blood and into the tissue cells?	insulin
The _____ serves as a temporary endocrine gland and produces human chorionic gonadotropin hormone.	placenta
Hyposecretion of prolactin can cause	insufficient milk production in nursing women.
Which types of cells of the adenohypophysis secrete luteinizing hormone and follicle-stimulating hormone?	gonadotrophs
How does the growth hormone affect metabolism?	promotes protein anabolism indirectly inhibits glucose metabolism promotes lipid mobilization and catabolism indirectly increases blood glucose levels
Which hormone prevents the formation of a large volume of urine?	antidiuretic hormone
Which of the following is not a formed element found in the blood?	plasma
_____ is used to determine the volume percentage of red blood cells in whole blood.	Hematocrit
The molecule that makes up 95% of the dry weight of each red blood cell and is responsible for the red pigment is	hemoglobin.
Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as:	hematopoietic stem cells.
A glycoprotein hormone that is secreted to increase oxygen concentration in the tissues is	erythropoietin.
Neutrophils are highly mobile and phagocytic. They migrate out of blood vessels and into tissue spaces. This process is called	diapedesis
A decrease in the amount of white blood cells is called	leukopenia
Platelets play an important role in	blood clotting
The term blood type refers to the type of blood cell	antigen
A disease that develops as a result of the reaction of a mother’s Rh antibodies with her Rh-positive baby is	erythroblastosis fetalis
____, a natural constituent of blood, acts as an antithrombin and prevents clots from forming in vessels.	Heparin
The physiological mechanism that dissolves clots is known as	fibrinolysis.
In the extrinsic pathway of stage 1 of the clotting mechanism, chemicals released from damaged tissues trigger the cascade of events that ultimately result in the formation of	prothrombin activator.
The heart has its own special covering, a loose-fitting inextensible sac called the	pericardium
The bulk of the heart wall is the thick, contractile middle layer called the	myocardium
The type of membranous tissue that lines the heart and blood vessels is the	endothelium
Atria are often called _____ because they receive blood from vessels called veins.	receiving chambers
Mechanical devices that permit the flow of blood in one direction only are called	valves.
The heart valves that are located where the trunk of the pulmonary artery joins the right ventricle and where the aorta joins the left ventricle are called	semilunar valves.
The free edges of the atrioventricular valves are anchored to the	papillary muscles.
After blood leaves the lungs and returns to the heart, it enters the	left atrium.
From which vessels do myocardial cells receive blood?	coronary arteries
Which division of the autonomic nervous system sends fibers to the heart?	sympathetic parasympathetic
The four structures that compose the conduction system of the heart are the	SA node, AV node, AV bundle, and Purkinje fibers.
The normal cardiac impulse that initiates mechanical contraction of the heart arises in the	SA node
A graphic record of the heart’s electrical activity is a(n)	ECG.
A type of abnormal heart sound that may signify incomplete closing of the valves is	a heart murmur.
Which types of arteries are also called conducting arteries and include the aorta?	elastic arteries
Microscopic vessels that carry blood from small arteries to small veins are	capillaries.
The outermost layer of the larger blood vessels is the tunica	adventitia.
Which layer of the larger blood vessels is made up of endothelium?	tunica intima
Which sphincters function as regulatory valves that reduce the flow of blood through a network of capillaries when they contract and constrict the arterioles?	precapillary sphincters
Blood flow from the heart through blood vessels to all parts of the body and back to the heart is referred to as _____ circulation.	systemic
In _____, blood moves from veins to other veins or arteries to other arteries without passing through an intervening capillary network.	vascular anastomoses
The _____ is(are) supplied with blood from the left subclavian artery.	head and upper extremities
A few arteries open into other branches of the same or other arteries. This is called	arterial anastomosis.
The internal iliac artery supplies blood to the	pelvis
Blood from the brachiocephalic vein drains into the	head, neck, and upper extremity
Renal veins drain blood from the	kidneys.
The _____ drains much of the superficial leg and foot.	great saphenous vein
During fetal circulation, what opening in the septum, between the right and left atria, directs most of the blood so that it bypasses the fetal lungs?	foramen ovale
During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein?	It flows into the inferior vena cava.

Created by: Emiee9761