Which of the following is true about cardiac muscle tissue?
A. Cardiac muscle is voluntary.
B. Cardiac muscle lacks striations.
C. Intercalated discs allow atrium or ventricles to contract simultaneously.
D. Intercalated discs allow slow, accurate electrical transmission between cells.
Answer: C
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The supraspinatus is named for its location on the posterior aspect of the scapula above the spine. What is its action?
A) to flex and adduct the humerus and to act as a synergist of the pectoralis major B) to initiate abduction of the arm, to stabilize the shoulder joint and to help prevent downward dislocation of the humerus C) to extend and medially rotate the humerus and to act as a synergist of the latissimus dorsi D) to help hold the head of the humerus in the glenoid cavity and rotate the humerus laterally
Which of the following implants in, or attaches to, the endometrium of the uterus?
A) embryo B) blastocyst C) secondary oocyte D) fetus
Stimulation of sympathetic fibers of the renal plexus increases renal blood flow.
Answer the following statement true (T) or false (F)
The carpal bone that articulates with the first metacarpal is the ________.
Fill in the blank(s) with the appropriate word(s).