Because skeletal muscle contractions demand large quantities of ATP, skeletal muscles have
A) A rich nerve supply.
B) A rich vascular supply.
C) Very few mitochondria.
D) Little need for oxygen.
E) A large concentration of tissue hemoglobin.
B) A rich vascular supply.
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In which body region would you expect to find a muscle whose name includes the word "pollicis"?
A. Neck B. Wrist C. Great toe D. Buttocks E. Thumb
The bodies of adjacent vertebrae are separated by ________ that act as shock absorbers.
Fill in the blank(s) with the appropriate word(s).
Match the membrane protein with its function.
1. structural proteins 2. enzymes 3. receptors 4. transporters A. transfer signals from the extracellular environment to the cytoplasm of the cell B. form cell-to-cell connections C. bind to molecules to facilitate entry to or exit from the cell D. ligands bind to these proteins and are changed by the protein
Following blunt trauma to the face, a 30-year-old man presents with epistaxis, double vision, and an inability to look upward. You should be MOST suspicious of:
A) traumatic conjunctivitis. B) an orbital blowout fracture. C) traumatic retinal detachment. D) fracture of the cribriform plate.