A metacarpophalangeal joint is classified as which of the following?
A. A condylar joint
B. A pivot joint
C. A ball and socket joint
D. A hinge joint
E. A gliding joint
Answer: A
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Answer the following statements true (T) or false (F)
1. If bacteria invaded the CNS tissue, microglia would migrate to the area to engulf and destroy them. 2. A pair of tweezers is a good example of a second-class lever. 3. Both first- and second-class levers operate at a mechanical disadvantage. 4. Although all skeletal muscles have different shapes, the fascicle arrangement of each muscle is exactly the same. 5. Muscles are only able to pull, they never push.
The spinal cord part with the largest diameter is the ________ part.
A. sacral B. thoracic C. cervical D. lumbar E. coccygeal
What is the function of an adhesion junction?
A. To keep cells from pulling apart B. To create an impermeable barrier between cells C. To allow materials to pass from cell to cell D. None apply.
Vasodilation of blood vessels to the kidneys is due to ________.
a) more frequent action potentials b) less frequent action potentials