In this closeup image of a lung, what structures are indicated by number 4?
A. Respiratory bronchioles
B. Alveolar ducts
C. Alveoli
D. Terminal bronchioles
E. Bronchioles
C
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Cells that are important in the blood brain barrier are the:
a. Schwann cells b. microglia c. astrocytes d. oligodendrocytes
Pigment-producing cells in the epidermis are ________
Fill in the blanks with correct word
Which of the following regions of the stomach is correctly matched with its description?
A. Pylorus - the most inferior portion of the stomach B. Body - portion closest to the esophagus C. Cardiac region - the largest portion of the stomach D. Pyloric opening - opening from the esophagus E. Fundus - opening from the stomach into the duodenum
As a fetus develops beyond the fifth month, its skin is covered by a white, greasy substance called
A. lanugo. B. amnion. C. meconium. D. vernix caseosa.