A/p 2 unit 1 test

What is the average normal pH range of blood?

7.35-7.45

Which letter represents a case of bradycardia?

C

Which anterior pituitary hormone does NOT target another endocrine gland?

GH

A Rh factor of Rh+ indicates which of the following?

None of the choices

What role does Factor XIII play during the clotting pathway?

Stabilizes fibrin during clotting

Tommy never develops male secondary sex characteristics. Which part of his adrenal gland could be hypo-secreting androgens?

Zona reticularis

Antigens found on the surface of RBC that determines the ABO blood groups.

agglutinogens

*Ventricular systole is represented by which of the following?

all choices are correct

Which of the following is NOT part of the intrinsic conduction system of the heart?

atrioventricular (AV) valve

Normal heart sounds are caused by which of the following events?

closure of the heart valves

This phase of contractions is characterized by high pressure from the ventricular contractions.

systole

Hematopoietic Growth Factors are hormones that direct the differentiation of progenitor cells in the formation of RBC. Erythropoietin (EPO) is a hormone that is produced where and regulates which of the following?

Produced within the kidney, directs the formation of erythrocytes

Specialized cardiac cells that instead of contracting, carry electrical conduction to stimulate contraction.

Purkinje fibers

A Rh factor of Rh- indicates which of the following?

The person is lacking the D antigen

Why is blood type O- considered to be true universal blood donors?

There are no antigens on O- to trigger an immune response

What is the hormone that is released from the hypothalamus that triggers release of hormones from the anterior pituitary?

Thyrotropin-releasing hormone

The WBC is present when parasitic infections occur within the body.

eosinophils

Which nerve stimulates the SA node?

phrenic nerve

Melatonin is released from which cell type?

pinealocytes

The cell type that represents a broad range stem cell which leads to a multiple of different cell types.

pluripotent cells

A mismatch of blood types during a transfusion is dangerous because ________.

preformed antibodies in the recipient's blood will bind and clump (agglutinate) the donated cells

Which of the following is true about Erythropoietin?

All choices are correct

What role does the heme group play within the structure of hemoglobin?

Allows for the binding and carrying of oxygen

Which letter represents tachycardia?

B

A person with a blood type AO or AA would produce which of the following antibodies?

B agglutinins

This hormone is secreted from basophil cells of the anterior pituitary and stimulates the development of follicles in females, estrogen production within the follicles and stimulates sperm production within the males.

FSH

This type of leukocyte is characterized as "first responders" in the fight against bacterial infections and the formation of pus. The nucleus appears to be "C" or "S" shaped.

Neutrophils

The muscles which contract to tighten the chordea tendineae as the atrioventricular valves close are known as?

Papillary muscles

Hematocrit is best defined as what?

Percentage of RBC within the blood

*Which of the following initiates the release of Factor XII, leading to the formation of Prothrombinase? What pathway is represented?

Release of TF from damaged tissue within the Intrinsic Pathway

*Chromaffin cells responsible for which of the following?

Releasing catecholamine (epinephrine, norepinephrine, dopamine) from the adrenal medulla

The pacemaker of the heart is considered the______.

SA Node

Which of the following is the hearts rapidly firing pacemaker?

SA Node

This type of leukocyte is characterized as cells that secrete heparin and histamine in response to allergic reactions. The nucleus appears to be "pixelated".

basophil

*What cells in the pancreas are active when you are hyperglycemic?

beta cells

Stroke volume is regulated by all of the following except?

cardiac output

Platelets are cells of the formed elements that aides and regulates clotting within the body.

false

Purkinje fibers contract, they do not conduct impulses.

false

Which is most responsible for the synchronized contraction of cardiac muscle tissue?

gap junctions

Which chambers of the heart contain oxygenated blood?

left atrium and ventricle

The cells responsible for producing platelets are called ________

megakaryocytes

Which blood type is generally called the universal donor?

o negative

Which body activity would be most affected if a patient lacked an adequate number of erythrocytes (anemia)?

oxygen transport

A cluster of cells that serve as the functional unit of the pancreas, releasing glucagon and insulin to aide in the regulation of the blood-glucose levels.

pancreatic islets

Which of the following directly increases blood-calcium levels?

parathyroid hormone

hypothalamic-hypophyseal tract

runs through the infundibulum

Antidiuretic hormone (ADH) ________.

secretion is inhibited by alcohol

A patient's hematocrit shows an unusually large buffy coat. What is a likely cause for this?

sever infection

Which of the following is NOT a change typically produced by a hormonal stimulus?

stimulates production of an action potential

The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on ________.

the presence of the appropriate receptors on the cells of the target tissue or organ

Which of the following is directly responsible for the conversion of fibrinogen into fibrin during the Common Pathway?

thrombin

Normal development of the immune response is due in part to hormones produced by the ________.

thymus gland

Hemoglobin is broken down by macrophages in the liver and spleen. What is responsible for the transportation of Fe+ through blood?

transferrin

If you centrifuge (spin) whole blood you will find the band of white blood cells and platelets (the buffy coat) is much thinner than the packed red blood cells below it. This difference reflects the fact that

white blood cells are fewer in number than red blood cells

Which part of the adrenal cortex secretes mineralocorticoids which regulate electrolyte balance?

zona glomerulosa