A triad consists of ________

A) sarcomeres and terminal cisternae B) myofibrils and terminal cisterne
C) terminal cisternae and T-tubules D) sarcomeres and T-tubules


Answer: C

Anatomy & Physiology

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The myocardium receives about 5% of circulating blood even though the heart is only 0.5% of total body weight. Which of the statements below is most closely related to this fact?

A. The myocardium of the left ventricle is strikingly thick because it serves to pump blood to all tissues. B. The left coronary artery supplies both ventricles and the left atrium. C. The coronary arteries carry more blood during ventricular diastole than they do during ventricular systole. D. There are several arterial anastomoses in coronary circulation. E. Cardiocytes have large mitochondria that make up about 25% of cell volume.

Anatomy & Physiology

In this organ, filtration is the important first step in producing urine

A) lung B) kidney C) liver D) heart

Anatomy & Physiology

Coronary sinus drains venous blood from the cardiac muscle tissue into ________.

A. superior vena cava B. inferior vena cava C. left atrium D. right atrium

Anatomy & Physiology

Which of the following structure provides oxygen and nutrients to kidney parenchyma?

a. Peritubular capillaries b. Glomerular capillaries c. Nephronic tubules d. Juxtaglomerular apparatus e. Podocyte

Anatomy & Physiology