Which group of muscles below are synergists?
A. Masseter and platysma
B. Buccinator and sternocleidomastoid
C. Frontalis and occipitalis
D. Temporalis and masseter
Answer: D
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Each one of the coxal bones is formed by the fusion of ________ bones
A) 2 B) 3 C) 4 D) 5 E) 6
The ductus venosus is a fetal vessel that transports blood from the umbilical vein to the
A. inferior vena cava. B. superior vena cava. C. aorta. D. umbilical artery.
Answer the following statement(s) true (T) or false (F)
1. Skeletal muscle contraction aids in the flow of lymph. 2. The immune system is an organ system of the body that works with the lymphatic system to protect against the invasion of pathogens. 3. Lymph originates in blood capillaries that pick up tissue fluid. 4. Humoral immunity targets intracellular viruses, whereas cellular immunity targets extracellular viruses. 5. Some antibodies against foreign antigens can react to similar self-antigens, causing an autoimmune disease.
Stem cells taken from a person to be used to treat a disease in that same person come
from A) existing cell populations or reprogrammed cells. B) the person or a blood relative. C) two different cell types. D) embryos or fetuses.