A 31-year-old woman in labor undergoes cesarean delivery for arrest of descent. A biopsy specimen from the uterine wall is examined for teaching purposes. The predominant contractile tissue in this organ is composed of spindle-shaped cells with a single central nucleus and no visible striations. Which of the following best describes this tissue?
- A)Transitional epithelium
- B)Dense regular connective tissue
- C)Skeletal muscle
- D)Cardiac muscle
- E)Smooth muscleGABARITO
Explicação
The myometrium is composed of smooth muscle. Smooth muscle cells are spindle shaped, have a single central nucleus, lack striations, and are well suited for sustained involuntary contraction such as labor. The uterine wall location and microscopic description ... Ver explicação completa e trilha adaptativa →