Which of the following is (are) true of the growth of the skeleton?
A) All bone formation ceases immediately after the end of adolescence.
B) Calcification of bones does not occur until an infant begins to learn to walk.
C) It begins to ossify at six weeks of gestational age.
D) All of the answers are correct.
E) None of the answers are correct.
C) It begins to ossify at six weeks of gestational age.
You might also like to view...
Which type of vitamins will be absorbed from the intestine into lacteals (lymphatic capillaries)?
A. Water-soluble B. Fat-soluble
Match the nerve or plexus with its appropriate description.Obturator nerve
A. Innervates the anterior and lateral muscles of the leg B. Innervates muscles of the pelvic floor C. Innervates the muscles that adduct the thigh D. Branches to form the medial and lateral plantar nerves E. Innervates the iliopsoas, sartorius, and quadriceps femoris
Stereocilia are described by which of the following?
A) very short microvilli B) present on receptor cells of the inner ear C) present in the epithelium of the female reproductive tract D) manufactured by the Golgi apparatus E) All of the answers are correct.
Action potentials occur when the graded (local) potential
A) becomes more negative. B) reaches zero. C) reaches the threshold. D) remains constant for a considerable period of time. E) causes a hyperpolarization.