A muscle group that works with and assists the action of a prime mover is a(n) ________
A) fixator
B) antagonist
C) synergist
D) agonist
C
Explanation:
A) A fixator does not assist the action of a prime mover.
B) An antagonistic muscle pulls in the opposite direction to produce resistance.
D) An agonist muscle pulls in one direction.
Exercise 18: Post-Lab Questions
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Rickets is
A. a disease in adults characterized by softening of bones resulting from calcium depletion. B. a disease in children characterized by soft, bowed, and swollen bones. C. a group of genetic disorders producing very brittle bones that are easily fractured; this occurs because of insufficient collagen development. D. bone inflammation that often results from bacterial infection. E. a disease in adults, especially women, characterized by a reduced amount of bone matrix.
After menopause, the adrenal cortex is the primary source of estrogen or biologically similar molecules in females.
Answer the following statement true (T) or false (F)
Match the action with the specific reflex.Allows for the coordinated contraction and relaxation of opposing muscle groups
A. Golgi tendon reflex B. Reciprocal innervation C. Withdrawal reflex D. Crossed extensor reflex E. Stretch reflex
The type of chemical bond formed when ions with opposite electrical charges
attract is a(n) ________ bond. Fill in the blank(s) with correct word