What is a motor unit?
A. A single nerve cell
B. Involvement of multiple muscles for one movement
C. A single nerve cell and all the muscle cells it stimulates
D. Hundreds of nerve endings stimulating a group of muscles
Answer: C
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A. Biceps femoris B. Semimembranosus C. Sartorius D. Quadriceps femoris E. Tensor fasciae latae
The ____________________ serve as the conducting portion of the respiratory system, and the ____________________ are the gas-exchanging portion
Fill in the blank(s) with correct word
Pancreatic B-cells secrete:
(a) glucagon (b) lysozyme (c) insulin (d) plasma protiens (e) proteases
Osteoclasts and osteoblasts that travel through or across the bone surface removing and replacing old bone matrix are collectively called a(n) ________.
A. basic multicellular unit B. osteogenic repair unit C. bone reformation unit D. osteon E. callus multicellular unit