Which of the following become connected by myosin cross-bridges during muscle contraction?
A) thin filaments and thick filaments
B) thick filaments and titin filaments
C) Z disks and actin filaments
D) thick filaments and T tubules
E) thin filaments and T tubules
Answer: A
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Which statement accurately describes the permeability to water of the cell membrane and the capillary wall?
A. Both the plasma membrane and the capillary wall are permeable to water. B. The plasma membrane is permeable to water, but the capillary wall is not. C. The plasma membrane is not permeable to water, but the capillary wall is. D. Neither the plasma membrane nor the capillary wall is permeable to water.
Which is the largest compartment of extracellular water?
A) Lymph B) Interstitial fluid C) Transcellular fluid D) Plasma
What is the proximal long bone of the arm?
A. Radius B. Clavicle C. Humerus D. Ulna
The ________ and the middle nasal conchae are thin scrolls of ethmoid bone that project into the nasal cavity.
Fill in the blank(s) with the appropriate word(s).