Which is NOT a component of the nephron? ()
A. The proximal tubule
B. The distal tubule
C. The thin segment
D. The collecting tubule
E. The renal corpuscle
查看答案
The parenchyma of the lung is ()
A. bronchial tree and connected alveoli
B. pulmonary arteries and veins and their branches
C. lymphatic vessels
D. nerves
E. connective tissue
All of the following are features of the trachea EXCEPT ()
A. an elastic wall
B. cartilage rings completely encircle the wall
C. submucosal glands
D. presence of lymphoid tissue in the lamina propria
E. lined by pseudostratified columnar epithelium
Which one is the most numerous of leukocytes in human blood ? ()
A. Neutrophils
B. Eosinophils
C. Basophils
D. lymphocytes
E. Monocytes
In peripheral nerve fibers, the sheath cell is ()
Astrocytes
B. Oligodendrocytes
C. Satellite cells
D. Ependymal cells
E. Schwann cells
微信支付 
支付宝支付