Which features are characteristic of the normal male/android pelvis?

• A. Wider pelvic inlet, pubic angles less than 90°
• B. Narrow pelvic inlet, pubic angles less than 90°
• C. Shallow from anterior to posterior, wider pelvic outlet
• D. Wider pelvic inlet, shallow from anterior to posterior

Answer: (B)

The normal male, or android, pelvis is characterized by a narrow pelvic inlet and pubic angles that are typically less than 90°. This shape is more triangular compared to the female pelvis, which tends to be wider and has a more rounded pelvic inlet. In the android pelvis, the narrow inlet reflects the adaptations for bipedal locomotion and is associated with the male skeletal structure, which is generally more robust and compact.

The measurement of the pubic angle is also indicative of the male pelvis. Having a pubic angle of less than 90° is a defining characteristic, as it contributes to the overall structure and function of the pelvis, including its role in supporting the pelvic organs and facilitating locomotion. This anatomical arrangement is significant in various fields, including obstetrics, for understanding differences in pelvic dimensions during childbirth.

Other options present features that do not align with the characteristics of the male pelvis. A wider pelvic inlet and shallow anterior-posterior dimension are more typically associated with the female pelvis, which is adapted for childbirth.