The first part of the small intestine is called the ____
a. jejunum
b. duodenum
c. ileum
d. fundus
b
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The ________ cranial nerve translates vibrations into interpretable sounds.
A. sixth B. eighth C. seventh D. ninth
Matching
A) Ectopic focus B) Quiescent period C) Fibrillation D) Ischemia E) Infarction 33) Heart muscle is deprived of oxygen. 34) Death of heart muscle cells. 35) A condition of rapid and irregular or out-of-phase contraction of heart muscle cells. 36) An abnormal pacemaker. 37) Total heart relaxation.
What are the two membranous structures within the muscle fiber that play important roles in linking excitation to contraction?
a. horizontal tubules and sarcoplasmic reticulum b. transverse tubules and sarcoplasmic reticulum c. transverse tubules and endoplasmic reticulum d. horizontal tubules and endoplasmic reticulum e. sarcolemma and plasma end plates
Which of these movements is NOT caused by contraction of the erector spinae muscles?
a. flexion of the vertebral column b. lateral flexion of the vertebral column c. extension of the vertebral column d. rotation of the vertebral column