Benign tumors originating in the myometrium are

Correct Answer: D

Rationale: The correct answer is D (Both a & c) because benign tumors originating in the myometrium are typically either fibroids (choice A) or leiomyomas (choice C), which are essentially the same thing. Fibroids and leiomyomas are both non-cancerous growths arising from smooth muscle cells in the myometrium. Rhabdomyoma (choice B) is a benign tumor arising from striated muscle cells, not smooth muscle cells like fibroids and leiomyomas. So, choices A, B, and C are incorrect because only fibroids and leiomyomas specifically originate in the myometrium.

Correct Answer: B

Rationale: The correct answer is B: Greenstick fracture. This type of fracture occurs in children due to their bones being softer and more flexible. In a greenstick fracture, the bone is partially broken, breaking on one surface while bending on the other. This happens because children's bones have more collagen and less mineral content, making them more likely to bend rather than break completely. A: Colles fracture is a specific type of wrist fracture where the distal radius is broken. C: Impacted fracture occurs when the broken ends of the bone are driven into each other. D: Compression fracture involves the bone being crushed or compressed, usually seen in the spine.

Correct Answer: C

Rationale: The correct answer is C: Coccyx. The tailbone is also known as the coccyx, which is a small triangular bone at the base of the spine. It consists of 3-5 fused vertebrae. The lumbar vertebra (A) is part of the lower back, the sacrum (B) is a large triangular bone at the base of the spine, and the cauda equina (D) is a bundle of nerves at the lower end of the spinal cord. The coccyx specifically refers to the tailbone, making it the correct choice in this context.

Correct Answer: B

Rationale: The correct answer is B: Arthrodesis. Arthrodesis refers to the surgical fusion of bones across a joint space. This procedure aims to stabilize a joint by creating a bony union. Ankylosis (A) is the natural fusion of bones due to disease or injury. Arthroplasty (C) involves replacing a damaged joint with an artificial prosthesis. Arthroscopy (D) is a minimally invasive procedure to visualize and treat joint problems without open surgery. In this context, only arthrodesis specifically involves fusing bones across a joint space.

Correct Answer: A

Rationale: The correct answer is A: Insertion. The point of junction of the muscle to the bone that moves is called the insertion because this is where the muscle attaches to the bone that it acts upon. The insertion is typically located distally in relation to the origin of the muscle. The origin, choice B, refers to the point of attachment of the muscle to the stationary bone. Choices C and D, Sheath and Fascia, are incorrect as they do not specifically refer to the point of junction of the muscle to the bone that moves.