Continuous stress on the bone causes it to:

a. grow longer
b. become thicker
c. degenerate or thin
d. become stronger


Answer: c. degenerate or thin

Anatomy & Physiology

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In cardiac muscle, phosphorylation of phospholamban by protein kinase A modulates:

A. Ca++ extrusion through the plasmalemmal Ca++ pump B. Ca++ transport by SERCA C. open probability of the ryanodine receptor D. Ca++ affinity of troponin C E. Ca++ extrusion through the Na+-Ca++ antiporter

Anatomy & Physiology

What is acetylcholine?

A) an ion pump on the postsynaptic membrane B) a source of energy for muscle contraction C) a component of thick myofilaments D) an oxygen-binding protein E) a neurotransmitter that stimulates skeletal muscle to contract

Anatomy & Physiology

A region of DNA that contains instructions for the amino acid sequence of a particular protein is called a(n) ____

a. codon b. sugar c. gene d. anticodon

Anatomy & Physiology

Inserting a nasopharyngeal airway in a patient with CSF drainage from the nose following head trauma may:

A) result in ventricular dysrhythmias secondary to intracranial pressure. B) cause acute herniation of the brainstem through the foramen magnum. C) cause the device to enter the brain through a hole caused by a fracture. D) result in acute hypertension and decreased cerebral perfusion pressure.

Anatomy & Physiology