Before beginning orthodontic treatment, a patient may have her wrist and hand x-rayed to determine her stage of growth. What feature of the long bones will the orthodontist use to assess this?
A. Spongy bone
B. Osteon
C. Periosteum
D. Compact bone
E. Epiphyseal plate
Answer: E
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Which of the following is not a type of fibrous joint?
A. Syndesmosis B. Gomphosis C. Coronal suture D. Symphysis
The periosteum is a tissue that serves only to protect the bone because it is not supplied with nerves or blood vessels
Indicate whether the statement is true or false
The membrane potential in a typical cell
1.is the sum of the individual potentials of all ions. 2.is positive on the inside relative to the outside of the cell. 3.is the result of a charge difference between the inner and outer surfaces of the membrane. 4.is entirely the result of the difference in potassium ion concentrations on the two sides of the membrane. 5.is entirely the result of the difference in cation concentrations on the two sides of the membrane.
What serves as the effector for the micturition reflex arc?
A. Sacral region of the spinal cord B. Bladder wall C. Internal urethral sphincter D. None of these are correct.