Which of the following is the only muscle of mastication that depresses and protracts the mandible?
A. Buccinator
B. Medial pterygoid
C. Termporalis
D. Lateral pterygoid
E. Masseter
Answer: D
Anatomy & Physiology
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A long bone is covered externally with a sheath called the ________, whereas the marrow cavity is lined with the ________.
A. epiphysis; diaphysis B. compact bone; spongy bone C. diaphysis; epiphysis D. endosteum; periosteum E. periosteum; endosteum
Anatomy & Physiology
The anterior roots of the spinal nerves contain motor neurons.
Answer the following statement true (T) or false (F)
Anatomy & Physiology
The pinna and auditory canal are part of what section of the ear?
A. Middle ear B. Outer ear C. Inner ear D. None of these answers are correct.
Anatomy & Physiology
The blood-thymus barrier is made up of
A) immature T cells. B) mature T cells. C) macrophages. D) plasma cells. E) epithelial reticular cells.
Anatomy & Physiology