Which of the following represents the correct sequence when tracing the path of blood from the superior or inferior vena cava to the lungs?
A. pulmonary semilunar valve, right atrium, mitral valve, right ventricle, pulmonary veins
B. tricuspid valve, right atrium, aortic semilunar valve, right ventricle, pulmonary veins
C. right atrium, tricuspid valve, right ventricle, pulmonary semilunar valve, pulmonary trunk
D. left atrium, pulmonary semilunar valve, left ventricle, mitral valve, pulmonary arteries
Answer: C
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Two chambers containing aqueous solutions are separated by a membrane. Chamber 1 contains 10 mM Na+ while chamber 2 contains 1 mM Na+. The membrane potential (1 relative to 2) in this scenario
a. is greater than 0 mV. b. is equal to 0 mV. c. is less than 0 mV. d. cannot be determined based on the information given.
Damage to that part of the brain known as Broca's area is likely to
A. cause difficulty in recognizing faces. B. be associated with paralysis on the left side of the body. C. impair speech. D. Both "cause difficulty in recognizing faces" and "be associated with paralysis on the left side of the body" are correct. E. Both "be associated with paralysis on the left side of the body" and "impair speech" are correct.
What disorder is characterized by an alternative form of hemoglobin that changes the shape of the red blood cell?
A. Sickle cell B. Hypoxia C. Hemophilia D. Thrombocytopenia
Which endocrine gland also acts as an exocrine gland?
a) pineal b) adrenal gland c) pancreas d) thymus