Lymphocytes called ________ T cells attack and kill body cells infected with viruses, bacteria, or parasites.
Fill in the blank(s) with the appropriate word(s).
killer
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What are the three embryonic divisions of the digestive system?
A. Ectoderm, endoderm, mesoderm B. Stomach, liver, small intestine C. Coelom, dorsal cavity, ventral cavity D. Foregut, midgut, hindgut E. Stomach, small intestine, large intestine
Which of the following act as the first line of defense against foreign pathogens?
A. Skin B. Synovial membranes C. Mucous membranes D. Both a and c
This figure shows the muscles of the posterior trunk. What muscle does number 3 indicate?
A. Latissimus dorsi B. Trapezius C. Rhomboid major D. Infraspinatus E. Supraspinatus
One example of a multiaxial joint is the __________ joint.
A. proximal radioulnar B. metatarsophalangeal C. humeroulnar D. humeroscapular E. atlantoaxial