In an adult heart, the previous location of the foramen ovale is marked by a
depression called the _____ _____.
Fill in the blank(s) with correct word
fossa ovalis
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Which of the following involves respiratory system activity that contributes to osteoporosis?
A. Mucosal cells of the respiratory tract release chemicals that inhibit tissue repair. B. Excessive smoking lowers estrogen levels, which increases bone loss. C. Calcium ions released from the bones are excreted through exhaled air. D. Lack of oxygen reduces vitamin D production and decreases calcium absorption. E. Decreased oxygen levels contribute to the disease.
Which type of cell is the most effective to attack multicellular parasites such as tapeworms?
A. Basophils B. Neutrophils C. Eosinophils D. Macrophages
The pyloric pump
A. mixes stomach contents for digestion. B. causes hunger contractions. C. moves chyme through a partially closed pyloric opening. D. causes rugae to flatten. E. opens the pyloric sphincter completely.
Contraction of skeletal muscle is very important to lymph movement.
Answer the following statement true (T) or false (F)