BIO 254 LAB Practice Questions And Answers With
Verified Solutions
The cardiovascular center is located ANS medulla oblongata
All deoxygenated blood returning from the systemic circulation flows into the: ANS Right Atrium
Which of the following layers of the pericardium is the dense connective tissue structure that plays an important role
in protecting the heart and keeping it in place in the mediastinum? ANS Fibrous pericardium
Degradation of the chordae tendineae would most likely result in ANS Valvular Prolapse (valve fails to close
properly)
Max, a 16 year old, has grown 14 inches taller than his identical twin brother this year. What organ or organ region
do you suspect may not be functioning properly? ANS Anterior Pituitary
The correct order of sequence of structures that allows the normal sequence of excitation to progress through the
heart ANS SA Node, AV node, Bundle of HIS, Bundle Branches, Purkinje fibers.
The right side of the heart plays a role in ______________, while the left side of the heart plays a role in
____________. ANS Pulmonary circulation; systematic circulation
Which of the following hormones stimulates cells of the anterior pituitary to secrete FSH and LH? ANS GnRH-
Gonadotropin-releasing hormone
Daniel is a 24 year old male, admitted to the hospital with symptoms similar to osteoporosis. Hyper-secretion of
which of the following hormones might be the cause for his condition? ANS Parathyroid Hormone
Sara's MAP is ANS 109mmHg
Which of the following statements about cardiac output is NOT CORRECT? ANS Parasympathetic nerve
stimulation will increase the heart rate and thus increases the cardiac output.
The S-T segment of an ECG represents ANS The plateau phase of the myocardial action potential.
Verified Solutions
The cardiovascular center is located ANS medulla oblongata
All deoxygenated blood returning from the systemic circulation flows into the: ANS Right Atrium
Which of the following layers of the pericardium is the dense connective tissue structure that plays an important role
in protecting the heart and keeping it in place in the mediastinum? ANS Fibrous pericardium
Degradation of the chordae tendineae would most likely result in ANS Valvular Prolapse (valve fails to close
properly)
Max, a 16 year old, has grown 14 inches taller than his identical twin brother this year. What organ or organ region
do you suspect may not be functioning properly? ANS Anterior Pituitary
The correct order of sequence of structures that allows the normal sequence of excitation to progress through the
heart ANS SA Node, AV node, Bundle of HIS, Bundle Branches, Purkinje fibers.
The right side of the heart plays a role in ______________, while the left side of the heart plays a role in
____________. ANS Pulmonary circulation; systematic circulation
Which of the following hormones stimulates cells of the anterior pituitary to secrete FSH and LH? ANS GnRH-
Gonadotropin-releasing hormone
Daniel is a 24 year old male, admitted to the hospital with symptoms similar to osteoporosis. Hyper-secretion of
which of the following hormones might be the cause for his condition? ANS Parathyroid Hormone
Sara's MAP is ANS 109mmHg
Which of the following statements about cardiac output is NOT CORRECT? ANS Parasympathetic nerve
stimulation will increase the heart rate and thus increases the cardiac output.
The S-T segment of an ECG represents ANS The plateau phase of the myocardial action potential.
