During endochondral ossification, the very first step in turning a hyaline model into bone is secondary ossification bone...

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Medical Sciences

During endochondral ossification, the very first step in turninga hyaline model into bone is
secondary ossification
bone collar formation
primary ossification
chondrocyte hypertrophy
Action potentials on the surface of the sarcolemma originate atthe
A.
T-tubules
B.
sarcomere
C.
neuromuscular junction
D.
Z-disk
The most immediate, most effective source of ATP for a musclefiber that needs to perform at maximum output for a short period oftime (less than 10 seconds) is
A.
aerobic respiration
B.
phosphagen system
C.
anaerobic respiration
D.
glycolysis
During contraction of the sarcomere, the role of Ca⁺²is to
A.
bind to troponin
B.
bind to tropomyosin
C.
provide the energy for myosin to pull on actin
D.
propagate action potentials

Answer & Explanation Solved by verified expert

4.0 Ratings (663 Votes)

1 Option B is correct During endochondral ossification the very first step in turning a hyaline model into bone is primary ossification The first region of a bone to start ossifying is a primary ossification center which normally appears in the central part of every developing bone during prenatal See Answer

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		secondary ossification
		bone collar formation
		primary ossification
		chondrocyte hypertrophy

	A.	aerobic respiration
	B.	phosphagen system
	C.	anaerobic respiration
	D.	glycolysis

	A.	bind to troponin
	B.	bind to tropomyosin
	C.	provide the energy for myosin to pull on actin
	D.	propagate action potentials