A tooth root attached to a jawbone by a periodontal ligament is a _____
A) synchondrosis B) syndesmosis
C) synovial joint D) gomphosis
D
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Tissue growth through cell multiplication is referred to as __________.
Fill in the blank(s) with the appropriate word(s).
Where are the cell bodies of the preganglionic neurons of the sympathetic division of the ANS located?
A. Thoracolumbar region B. Craniosacral regions C. Sympathetic chain ganglia D. Pons and medulla oblongata E. Collateral ganglia
Matching
A) A B) B C) C 1) Sinusoid capillary. 2) Capillary found in endocrine organs that allows hormones to gain rapid entry into the blood. 3) Capillary with intercellular clefts found in the skin and muscles. 4) Capillary that have a discontinuous, incomplete basement membrane. 5) Capillary found where active capillary absorption of filtrate occurs.
Oxygen has an atomic number of 8 and an atomic mass of 16. How many valence electrons does it have?
A. 16 B. 4 C. 8 D. 6 E. 2