The contraction cycle is triggered by the rise in ________ released from the sarcoplasmic reticulum (SR).
A) Ca2+
B) Na+
C) K+
A) Ca2+
Anatomy & Physiology
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Rhodopsin is found in ____ cells
A) rod B) cone C) olfactory receptor D) lens
Anatomy & Physiology
The sleep-wake cycle is controlled by interactions among how many neural systems?
a. 1 b. 2 c. 3 d. 4 e. 5
Anatomy & Physiology
What is the term that refers to a body standing erect with hands at the sides and palms facing forward?
a. Anatomical Position (western medicine). b. Anatomical Position (oriental medicine) c. Prone. d. Supine.
Anatomy & Physiology
Which cranial nerve sends branches to the heart?
A) VIII B) IX C) X D) XI
Anatomy & Physiology