The osteon is ________.
a fibrous membrane that covers and protects bone
the structural unit of compact bone
the structural unit of spongy bone
a network of red marrow
the structural unit of compact bone
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An "open book" fracture occurs when blunt force trauma causes the two pubis bones of the pelvic girdle to separate, opening the entire girdle from the front like a book. The section of the pelvic girdle that would be broken in this injury is the pubic symphysis.
Answer the following statement true (T) or false (F)
The spreading of cancer cells around the body from the original source is called:
a. diapedesis b. apoptosis c. benign d. malignant e. metastasis
Which of these comparisons between smooth muscle and skeletal muscle is NOT correct?
A) Smooth muscle cells are tapered at each end; skeletal muscle cells are long and cylindrical. B) Smooth muscle cells are under voluntary control; skeletal muscle is involuntary. C) Smooth muscle forms the walls of hollow organs except the heart; skeletal muscle attaches to the skeleton. D) Smooth muscle cells have a single nucleus; skeletal muscle cells have many. E) Smooth muscle cells have no striations; skeletal muscle cells have striations.
The framework or stroma of organs such as the spleen, liver, and lymph nodes is made up of ________ tissue
A) areolar connective B) regular dense connective C) irregular dense connective D) reticular connective E) adipose