What does "B" represent on the diagram?
A. Cross-bridge
B. Actin myofilament
C. Myosin myofilament
D. Sarcomere
E. Z disk
Answer: C
You might also like to view...
Which of the following is not produced by the human anterior pituitary gland?
A) prolactin B) luteinizing hormone C) follicle-stimulating hormone D) oxytocin
Worn-out red blood cells are destroyed and the hemoglobin is degraded to a yellow pigment known as ____________________, which is excreted into the bile
Fill in the blank(s) with correct word
Respiratory acidosis
A) occurs when the pH of the blood is greater than 7.45. B) may result from hyperventilation. C) may result from hypoventilation. D) can not be corrected by altering renal bicarbonate retention.
The dicrotic notch in the aortic pressure curve is due to the
A. increase in intraventricular pressure during ejection. B. backflow of blood toward the ventricles. C. closure of the left AV valve. D. elasticity of the arterial wall. E. closure of the semilunar valves.