Which one is the structural basis of electrical synapse (electrical current)? ()
A. Gap junction
B. Tight junction
C. loose junction
D. Varicosity
E. Channel
查看答案
Conduction velocity in myelinated fibers is faster than unmyelinated fiber, mainly because ()
A. diameter
B. temperature
C. the thickness of myelin sheath
D. saltatory conduction
E. the intensity of stimulation
Which of the following hormones is associated with acromegaly? ()
A. growth hormone
B. thyroid hormone
C. thyroid stimulating hormone
D. adrenocorticotropic hormone
E. thyrotropin releasing hormone
Which of the following is true during inspiration? ()
A. Intrapleural pressure is positive
B. The volume in the lungs is less than the functional residual capacity (FRC)
C. Alveolar pressure equals atmospheric pressure
D. Alveolar pressure is higher than atmospheric pressure
E. Intrapleural pressure is more negative than it is during expiration
Which volume remains in the lungs after a maximal expiration? ()
A. Tidal volume (VT)
B. Vital capacity (VC)
C. Expiratory reserve volume (ERV)
D. Residual volume (RV)
E. Functional residual capacity (FRC)
微信支付 
支付宝支付