What endocrine gland produces stimulating and inhibiting hormones?
A) Posterior lobe of pituitary
B) Hypothalamus
C) Thyroid
D) Anterior lobe of pituitary
Answer: D) Anterior lobe of pituitary
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Chromosomes align down the center of a cell undergoing meiosis in metaphase.
Answer the following statement true (T) or false (F)
Skeletal muscle is innervated by the ____________________ nervous system, the branch of the ____________________ division subject to voluntary control
Fill in the blank(s) with correct word
Which of the following characteristics do skeletal muscle and smooth muscle have in common?
a. Calcium is bound by the protein calmodulin prior to formation of cross-bridges. b. Tropomyosin is removed from the myosin-binding site on actin, permitting formation of cross-bridges c. Sliding of thick and thin filaments relative to one another depends on a rise in cytosolic calcium. d. Sliding of thick and thin filaments relative to one another results in shortening of the sarcomeres. e. All of these.
The innermost serous membrane attached to the heart muscle is called the __________.
Fill in the blank(s) with the appropriate word(s).