Trace the pathway of a molecule of inhaled oxygen as it enters the vestibule of the nasal cavity to its final destination of entering the bloodstream in the lungs.
What will be an ideal response?
It enters the vestibule of the nose, swirls around the turbinate bones, enters the nasopharynx, passes through the glottis, enters the trachea, passes into the primary bronchi, then the secondary bronchi and the tertiary bronchi, then through the bronchioles (terminal and respiratory, and into the alveoli where gas exchange occurs.
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Which of the following is involved in stimulating milk letdown?
A. increased estrogen levels B. increased progesterone levels C. mechanical stimulation of the breasts that cause release of oxytocin D. secretion of a small amount of milk E. None of these choices is correct
Feeling for swollen lymph nodes is an example of auscultation
Indicate whether the statement is true or false
When food molecules enter the cell and undergo chemical changes there, the process is called:
a. assimilation b. digestion c. absorption d. nutrition
Hair begins to grow by the fourth month of fetal development.
Answer the following statement true (T) or false (F)