Which of the following is a surgical procedure in which a pendulous breast is lifted and fixed to the chest wall?

Correct Answer: C

Rationale: The correct answer is C: Mastopexy. This surgical procedure involves lifting and fixing a pendulous breast to the chest wall to achieve a more youthful and firmer appearance. It does not involve removal of breast tissue like in mastectomy (B) or creation of a new breast mound like in mastostomy (A). Mesopexy (D) is not a recognized surgical procedure for breast lifting.

Correct Answer: C

Rationale: The correct answer is C: Myometrium. The myometrium is the middle layer of the uterus composed of smooth muscle tissue responsible for uterine contractions during childbirth. The endometrium (A) is the innermost layer responsible for menstruation and implantation. Ectometrium (B) is not a correct term. Perimetrium (D) is the outermost layer of the uterus. Therefore, C is the correct choice as it accurately represents the middle layer of the uterus.

Correct Answer: B

Rationale: The correct answer is B: Labia. The term "labia" refers to the lips of the vagina. It is the plural form of "labium." "Labial" (A) refers to anything related to the lips, "Labrum" (C) refers to a rim or edge, and "Labor" (D) refers to the process of childbirth. Therefore, B is correct as it specifically refers to the structure being described.

Correct Answer: B

Rationale: The correct answer is B: Sphenoid bone. The sphenoid bone is bat-shaped and forms part of the base of the skull. It is located in the middle of the skull, helping to connect the cranial bones. The other choices, A: Ethmoid bone, C: Parietal bone, and D: Occipital bone, do not match the description of a bat-shaped bone at the base of the skull. The ethmoid bone is located between the eyes, the parietal bone forms the top and sides of the skull, and the occipital bone forms the back and base of the skull. Therefore, B is the correct answer based on the specific description given in the question.

Correct Answer: D

Rationale: The correct answer is D: Comminuted fracture. This type of fracture occurs when the bone is splintered or crushed in several places, leading to multiple bone fragments. This term accurately describes the situation where the bone is broken into multiple pieces. A: Complex fracture refers to a fracture that involves multiple breaks in a bone, but not necessarily into multiple small fragments. B: Greenstick fracture is an incomplete fracture where the bone is bent but not completely broken. C: Impacted fracture occurs when the broken ends of the bone are driven into each other, typically seen in a fall with a lot of force, but it does not involve multiple bone fragments like in a comminuted fracture.