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BIO 169 Final Exam | Questions And Answers Latest {} A+ Graded | 100% Verified

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BIO 169 Final Exam | Questions And Answers Latest {} A+ Graded | 100% Verified

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BIO 169 Final Exam | Questions And Answers Latest {2024- 2025} A+ Graded
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Erythropoietin - Is secreted by the kidney



The function of the pericardial fluid is to - reduce friction between the pericardial membranes



Match the type of chemical messenger with its description. - Autocrine: stimulates the cell that originally
secreted it

Endocrine: secreted by glands and cells; acts upon distant target tissues

Paracrine: secreted by one cell; acts upon nearby cells

Neurotransmitter: secreted by neurons into a synaptic cleft



What is not an accurate description of the pituitary gland - It is divided functionally into the superior and
inferior pituitary glands



Peripheral chemoreceptors - Are located in the aortic and carotid bodies



Match the type of pancreatic islet cell with the hormone it secretes - Beta cells: insulin

Alpha cells: glucagon

Delta cells: somatostatin



The chordae tendineae - Connect the cusps of the AV valves to the papillary muscles



Epinephrine - Causes vasodilation of coronary blood vessels



Which of the following would occur as a result of increased renin release by the kidneys - an increase in
blood volume

,The axons of the neurosecretory neurons extend through the infundibulum, forming the -
hypothalamohypophysial tract



Type AB blood - Has both A and B antigens on the red cells



When comparing cardiac muscle cells and skeletal muscle cells - action potentials are conducted from
cell to cell only in cardiac muscle



Match the items in the left column with the correct answers on the right column - Secretions travel in
the bloodstream: Endocrine system

Secretions travel through ducts: Exocrine system

Testosterone: example of endocrine secretion

Digestive enzymes: example of exocrine secretion



The valve located between the right ventricle and the pulmonary trunk is the - pulmonary semilunar
valve



Resistance to blood flow is greatest in - arterioles



Why would a person have anti-Rh antibodies present in their blood - an Rh-negative woman is carrying
an Rh-positive fetus.



Which is not a way that parathyroid hormone affects calcium levels in the blood - Increases blood
phosphate levels



Stroke volume is increased by - increased venous return



Indicate which pair of hormones act antagonistically to one another - insulin and glucagon



The posterior pituitary secretes - Neurohormones

, John is taking a run before getting ready for work. Even though it's before breakfast, his energy levels
remain steady as his body responds to maintain blood glucose levels. Which of the following is not
occurring during his run? - Sympathetic stimulation causes an increase in insulin secretion



If a diseased thyroid gland was unable to produce normal levels of TH, which of the following may
result? - Secretion of TSH would increase.



The oxygenated form of hemoglobin is called - oxyhemoglobin



During the isovolumetric contraction period of the cardiac cycle, - AV and semilunar valves are closed



If cortisol levels increase above homeostatic levels, which of the following would occur - ACTH levels will
decline due to negative feedback inhibition



Match the chemical messenger with its function - Endorphins: reduction of pain sensation

Prostaglandins: inflammation; uterine contractions

Interleukin-2: stimulation of cell division of T lymphocytes

Epidermal growth factor: stimulation of cell division



Indicate the type of drug described - The drug in asthma inhalers binds to epinephrine receptors,
stimulates the relaxation of the smooth muscle in the lung airways: agonist

A drug prevents platelet aggregation by binding to epinephrine receptors on platelets and inhibits their
normal action: antagonist



The ability of white blood cells to leave the circulation and enter tissues is called - diapedesis



What condition may be the cause of hyperglycemia, depressed immune system, and redistribution of
fats from limbs to the face, neck, and abdomen - Cushing syndrome



During exercise, the oxygen-hemoglobin dissociation curve - Shifts to the right

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