A、It is known as the‘pacemaker’of the heart.
B、It is located in the posterior wall of the left atrium.
C、It is ellipse in shape.
D、It generates an impulse at the rate of about 50/min.
E、The impulse generated by the sinoatrial node travels through the internodal tract (结间束) to reach
答案：ACE
A、It is known as the‘pacemaker’of the heart.
B、It is located in the posterior wall of the left atrium.
C、It is ellipse in shape.
D、It generates an impulse at the rate of about 50/min.
E、The impulse generated by the sinoatrial node travels through the internodal tract (结间束) to reach
答案：ACE
A. testes
B. epididymis
C. ductus defrens
D. ejaculatory ducts
E. male urethra
A. 第2-4颈椎体
B. 第3-5颈椎体
C. 第3-6颈椎体
D. 第5-6颈椎体
E. 第5-7颈椎体
A. 脊髓
B. 延髓
C. 脑桥
D. 中脑
E. 间脑
A. 头臂干
B. 左颈总动脉
C. 右颈总动脉
D. 左锁骨下动脉
E. 右锁骨下动脉
A. 淋巴管道
B. 淋巴器官
C. 淋巴结
D. 淋巴组织
E. 组织液
A. 阴部神经
B. 臀下神经
C. 坐骨神经
D. 闭孔神经
E. 股后皮神经
A. 肝
B. 胆囊
C. 肾
D. 肾上腺
E. 子宫
A. 肾实质可分为皮质、髓质、肾窦
B. 肾柱为肾髓质结构
C. 肾锥体尖端朝向肾皮质
D. 2-3个肾小盏合成1个肾大盏
E. 肾小盏在皮质内
A. 可分肱尺关节、肱桡关节和桡尺近侧关节三部分
B. 关节囊前壁最薄弱，常见桡尺骨向前脱位
C. 4岁前，易发生桡骨头半脱位
D. 肱三头肌是最主要的伸肘关节肌
E. 肌皮神经损伤，屈肘无力
A. 子宫颈可分子宫颈阴道部和子宫颈阴道下部
B. 直肠子宫陷凹为女性腹膜腔最低点
C. 子宫阔韧带维持子宫前倾前屈
D. 子宫动脉在子宫颈外侧约3cm处从输尿管前上方跨过
E. 支配子宫的副交感纤维来源于迷走神经
