match each head of the triceps brachii to its skeletal attachment. long head; lateral head; medial head. posterior surface of entire humeral shaft; posterior surface of proximal end of humerus; inferior margin of glenoid cavity and joint capsule.
What will be an ideal response?
long head = inferior margin of glenoid cavity and joint capsule
lateral head = posterior surface of proximal end of humerus
medial head = posterior surface of entire humeral shaft
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What are the extracellular fluid filled extensions of the lacunae called?
a) perforating (Volkmann's) canals b) central (Haversian) canals c) osteons d) canaliculi e) periosteum
The AV node is important because it
A) delays the transmission of the electrical impulses to the ventricles in order for the atria to finish contracting. B) directs electrical impulses from the ventricles to the atria. C) serves as the pacemaker in a normal heart. D) electrically opens the AV valves. E) None of these answers are correct.
Within a myofibril each myosin filament is surrounded by ________ actin filaments
Fill in the blank(s) with the appropriate word(s).
There are ______________________________________ major types of white blood cells (WBCs)
Fill in the blank(s) with correct word