The mineral ________________________________________, stored in bone, also plays a role in muscle contraction
Fill in the blank(s) with correct word
calcium
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Which body feature do ultramarathon runners count on to give their muscles fuel for endurance?
A) Stronger long bones B) Healthy cartilage C) Toned ligaments and tendons D) Richer blood supply
The larynx, trachea, bronchi, and bronchioles all make up the
A) upper respiratory tract. B) lower respiratory tract. C) internal respiratory tract. D) alveoli of the respiratory tract. E) respiratory mucosa.
These fiber tracts run between the dorsal horns
A) spinothalamic tracts B) dorsal white columns C) spinocerebellar tracts D) corticospinal tracts
Pow! A firecracker explodes close to you. Your mouth drops open in surprise, a movement known as:
A) retraction. B) opposition. C) depression. D) reposition.