Which of the following is not true of a thoracic vertebra?
A. The body has facets as points of articulation for ribs.
B. It usually has a facet at the end of each transverse process for attachment of a rib.
C. The body is more massive than those of cervical vertebrae but less than those of lumbar vertebrae.
D. The spinous process is pointed and angled sharply downward.
E. It has a pair of transverse foramina.
E. It has a pair of transverse foramina.
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This figure shows the lymphatic system. Which number indicates the inguinal lymph nodes?
A. 9 B. 1 C. 4 D. 5 E. 10
Examples of receptors that are always active are
A) mechanoreceptors. B) chemoreceptors. C) tonic receptors. D) tactile receptors. E) phasic receptors.
Functionally, a gomphosis is categorized as a
A. synovial joint. B. diarthrosis. C. synarthrosis. D. cartilagenous joint.
Which of the following is not a component of the cytoskeleton?
A. Intermediate filaments B. Cilia C. Microtubules D. Microfilaments E. Actin