BIO 254 LAB 2024 Questions & Answers
| 100% Correct | Verified
The cardiovascular center is located - ✔✔medulla oblongata
All deoxygenated blood returning from the systemic circulation flows into the: - ✔✔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? - ✔✔Fibrous
pericardium
Degradation of the chordae tendineae would most likely result in - ✔✔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? - ✔✔Anterior Pituitary
The correct order of sequence of structures that allows the normal sequence of excitation to progress
through the heart - ✔✔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
____________. - ✔✔Pulmonary circulation; systematic circulation
Which of the following hormones stimulates cells of the anterior pituitary to secrete FSH and LH? -
✔✔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? - ✔✔Parathyroid
Hormone
Sara's MAP is - ✔✔109mmHg
, Which of the following statements about cardiac output is NOT CORRECT? - ✔✔Parasympathetic nerve
stimulation will increase the heart rate and thus increases the cardiac output.
The S-T segment of an ECG represents - ✔✔The plateau phase of the myocardial action potential.
Bradycardia is defined as - ✔✔slower than normal heart rate
How many hormones do the five types of anterior pituitary cells secrete? - ✔✔7
Localized weakening of the blood vessel wall causing the side of the vessel to bulge is - ✔✔an aneurysm
A feature of cardiac muscle that joins adjacent cells together is - ✔✔intercalated discs
After performing the Allen's test, it is observed that only the first three digits regain normal color when
the radial artery is uncompressed while the lunar artery is still occluded - ✔✔This means there is an
anastomosis between the radial and the ulnar artery
What is an example of an anastomosis - ✔✔Circle of Willis
An increase in the formation of glycogen by the liver is an important effect of - ✔✔Insulin
Which two numbers are used to determine pulse pressure? - ✔✔Systolic and Diastolic Pressure
Which of the following would result from a thyroidectomy (removal of the thyroid gland) - ✔✔Decreased
T3 and T4 secretion/ Decreased calcitonin secretion
Which of the following is NOT true of veins? - ✔✔They always contain blood with a lower oxygen
content.
| 100% Correct | Verified
The cardiovascular center is located - ✔✔medulla oblongata
All deoxygenated blood returning from the systemic circulation flows into the: - ✔✔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? - ✔✔Fibrous
pericardium
Degradation of the chordae tendineae would most likely result in - ✔✔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? - ✔✔Anterior Pituitary
The correct order of sequence of structures that allows the normal sequence of excitation to progress
through the heart - ✔✔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
____________. - ✔✔Pulmonary circulation; systematic circulation
Which of the following hormones stimulates cells of the anterior pituitary to secrete FSH and LH? -
✔✔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? - ✔✔Parathyroid
Hormone
Sara's MAP is - ✔✔109mmHg
, Which of the following statements about cardiac output is NOT CORRECT? - ✔✔Parasympathetic nerve
stimulation will increase the heart rate and thus increases the cardiac output.
The S-T segment of an ECG represents - ✔✔The plateau phase of the myocardial action potential.
Bradycardia is defined as - ✔✔slower than normal heart rate
How many hormones do the five types of anterior pituitary cells secrete? - ✔✔7
Localized weakening of the blood vessel wall causing the side of the vessel to bulge is - ✔✔an aneurysm
A feature of cardiac muscle that joins adjacent cells together is - ✔✔intercalated discs
After performing the Allen's test, it is observed that only the first three digits regain normal color when
the radial artery is uncompressed while the lunar artery is still occluded - ✔✔This means there is an
anastomosis between the radial and the ulnar artery
What is an example of an anastomosis - ✔✔Circle of Willis
An increase in the formation of glycogen by the liver is an important effect of - ✔✔Insulin
Which two numbers are used to determine pulse pressure? - ✔✔Systolic and Diastolic Pressure
Which of the following would result from a thyroidectomy (removal of the thyroid gland) - ✔✔Decreased
T3 and T4 secretion/ Decreased calcitonin secretion
Which of the following is NOT true of veins? - ✔✔They always contain blood with a lower oxygen
content.
