Ca2+ release channels in the sarcoplasmic reticulum of the heart are opened by an increase in Ca2+ in the cytoplasm. This is referred to as ________.
A. calcium-induced repolarization
B. calcium-stimulated calcium release
C. calcium-induced fibrillation
D. calcium-stimulated depolarization
Answer: B
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The ________ nuclei within the gray matter of the spinal cord send nerve impulses to skeletal muscles.
A. somatic sensory B. visceral sensory C. somatic motor D. autonomic motor E. sensory
The gladiolus is an alternative term for the
A. manubrium. B. body of the manubrium. C. xiphoid process. D. ensiform process.
This organelle consists of tiny flattened sacs that help process and package chemicals in the cell
A) Ribosome B) Lysosome C) Mitochondria D) Golgi apparatus
The possibility of some control over autonomic responses is demonstrated by ________.
A) split brain studies B) stress-induced hypertension C) biofeedback D) nightmares