87. 以下有關食道肌肉層之敘述
(1)muscularis mucosa 中全部為 smooth muscles fibers.
(2)兩層肌肉層,外層為 longitudinal layer;內層為 circular layer.
(3)在 tracheal bifurcation 以下之食道,通常無 striated muscle.
(4)cervical esophagus 僅有 striated muscle.
(A)僅(1)(2)(3)正確
(B)僅(1)(3)正確
(C)僅(2)(4)正確
(D)(1)(2)(3)(4)皆正確
答案:登入後查看
統計: A(1), B(1), C(1), D(0), E(0) #2791699
統計: A(1), B(1), C(1), D(0), E(0) #2791699