BIO 202 ANATOMY AND PHYSIO LOGY II

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BIO 202 (ANATOMY AND PHYSIO LOGY II)

MIDTERM EXAM AND PRACTICE EXAM

/NEWEST 2024-2025 ACTUAL EXAM COMPLETE

250 QUESTIONS AND CORRECT DETAILED

ANSWERS (VERIFIED ANSWERS ) |ALREADY

GRADED A+

BIO 202 MIDTERM EXAM

What structure listed below is not found in the atria:

• Pectinate muscles
• crista terminalis
• AV node
• Trabeculae carneae
• coronary sinus - CORRECT ANSWER -D) Trabeculae

carneae

Select the correct statement regarding the heart valves.

• The mitral valve separates the right atrium from the right

ventricle.

• The tricuspid valve divides the left atrium from the left

ventricle. 1 / 4

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• The tricuspid and bicuspid semilunar valves separate atria

from ventricles

• The AV valves are supported by chordae tendineae so that

regurgitation of blood into the atria during ventricular contraction does not occur.

• Aortic and pulmonary valves control the flow of blood into

the heart. - CORRECT ANSWER -D) The AV valves are supported by chordae tendineae so that regurgitation of blood into the atria during ventricular contraction does not occur.

Rapid, irregular contractions; useless for pumping blood would

manifest as what on an EKG:

• supraventricular tachycardia
• ventricular tachycardia
• atrial fibrillation
• ventricular fibrillation
• 3rd degree heart block - CORRECT ANSWER -D)

ventricular fibrillation

Which part of the brain contains the cardiovascular center that regulates heart rate?

a) Midbrain

b) Cerebrum

c) Medulla oblongata 2 / 4

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d) Cerebellum

e) Thalamus - CORRECT ANSWER -c) Medulla oblongata

If we were able to artificially alter the membrane permeability of pacemaker cells so that sodium influx is more rapid, and thus a faster and stronger heart beat, the following effect would not

occur:

• vagal stimulatory effect
• positive Dromotropic effect
• positive Inotropic effect
• positive Lusitropic effect
• positive Chronotropic effect - CORRECT ANSWER -A)

vagal stimulatory effect

Which vessel(s) of the heart receive(s) blood during right ventricular systole?

• venae cavae
• pulmonary trunk
• aorta
• pulmonary veins
• tricuspid valve - CORRECT ANSWER -B) pulmonary trunk
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What statement best defines isovolumetric contraction:

• refers to the short period during ventricular systole when the

ventricles are completely closed chambers

• occurs while the AV valves are open
• occurs immediately after the aortic and pulmonary valves

close

• occurs only in people with heart valve defects
• refers to the short period during atrial systole when the atria

are completely closed chambers and blood is being ejected from the ventricles at the same time - CORRECT ANSWER -A) refers to the short period during ventricular systole when the ventricles are completely closed chambers

The volume remaining in each ventricle at the end of systole is the______

• stroke volume (SV)
• cardiac output (CO)
• end-systolic volume (ESV)
• cardiac reserve (CR)E) end-diastolic volume (EDV) -

CORRECT ANSWER -C) end systolic volume (ESV)

ardiac output (CO) equals:

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