You fell on the concrete walkway and scraped your leg against the solid surface, which created a two-inch by three-inch area that is not bleeding. This would be called a(n)
A) abrasion.
B) laceration.
C) puncture.
D) incision.
E) contusion.
A) abrasion.
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Which of the following best describes hydroxyapatite?
A. A secretion of the osteoclasts B. Dissolved minerals in the tissue fluid C. Dissolved minerals in the blood plasma D. Fibrous protein in the bone matrix E. Calcium phosphate in the bone matrix
Cancer cells can be detected by NK cells when they show
A) interferons. B) complement proteins. C) tumor-specific antigens. D) opsonization. E) CD4 markers.
The triceps surae includes which of the following muscles?
A. Gastrocnemius, soleus, and plantaris B. Gastrocnemius and soleus C. Gastrocnemius, soleus, and tibialis posterior D. Gastrocnemius, soleus, and fibularis (peroneus) longus E. Gastrocnemius, fibularis (peroneus) longus, and plantaris
The phenomenon of rigor mortis demonstrates that myosin can remain bound to actin in the absence of additional ATP, but the bond cannot then be broken
Indicate whether the statement is true or false.