QUESTION 5 Which of the following is not a function of skeletal muscle? O A. Facilitate the movement of blood and lymph for circulation. O B. Triggering the release of hormones O C. Maintaining posture O D. Help maintain body temperature.

Question 29

Question 4 1 pts A, B, or C? Which muscle would be more affected by joint angular velocity? A B A is more affected than B. B is more affected than A. O A and B are equally affected.

QUESTION 67 Which of the following types of muscle(s) are involuntary? Cardiac muscle only Smooth muscle only Skeletal muscle only Smooth and cardiac muscle Skeletal and cardiac muscle QUESTION 68 Which of the following bones is located medially when the human body is in anatomical position? Radius Humerus Femur O Fibula O Ulna Click Save and Submit to şave and submit. Click Save All Answers to save all answers. 0000

QUESTION 10 Which of the following is NOT true of intermediate filaments?   A They provide mechanical strength to cells.   B They are composed of 8 oppositely oriented tetramers that are assembled into a rope-like filament.   C They have a non-polar orientation.   D They are rigid and do not deform before breaking   E Keratins, neurofilaments, vimentin, and desmin are examples of intermediate filaments.

Question 19 Which of the following statements best describes Starling's hypothesis (Starling Equation, not the Frank-Starling relationship)? O A. Starling's hypothesis describes the relationship between stroke volume and heart rate in response to changes in preload. OB. Starling's hypothesis states that the amount of oxygen released from hemoglobin increases as the partial pressure of carbon dioxide decreases. O C. Starling's hypothesis suggests that the artieriolar resistance acts to promote the movement of fluid and solutes between the blood and interstitial fluid. O D. Starling's hypothesis proposes that the net movement of fluid across the capillary wall is determined by the balance between hydrostatic pressure and osmotic pressure gradients. O E. Starling's hypothesis states that the viscosity of a fluid will determine the flow rate in a closed system with increasing entropy.

Question 10. Why does the sarcomere length appear to shorten (from Z line to Z line) when a muscle contracts?

QUESTION 7 Many tissues have dual innervation of both the PNS and the SNS divisions of the autonomic nervous system. How would describe the effects of these two divisions on heart rate? you ○ They have a cooperative effect O They work as antagonists O The heart does not have dual innervation

Question 41 The sliding filament model of contraction involves----- A) Actin and myosin sliding past each other and partially overlapping B) The Z discs sliding over the myofilaments C) Actin in myosin lengthening in order to slide past each other D) The shortening of thick filaments so that the thin filaments slide past Please explain why correct and incorrect shortly

QUESTION 9 How is smooth muscle contraction regulated differently from striated skeletal muscle contraction?   A. Smooth muscle has organized parallel arrays of myofilaments.   B. Smooth muscle cells contract only through voluntary control.   C. Smooth muscle does not have myosin filaments.   D. Smooth muscle does not respond to elevations in intracellular Ca2+ levels.   E. Smooth muscle does not have troponin.