Which type of bone marrow is primarily responsible for hematopoiesis?

A. Insulin: Insulin regulates blood glucose levels by facilitating glucose uptake into cells and promoting glycogen storage. It does not influence water reabsorption in the kidneys.

B. Adrenaline: Adrenaline, or epinephrine, is involved in the fight-or-flight response, increasing heart rate and blood pressure. It does not directly regulate water reabsorption in renal tubules.

C. Thyroxine: Thyroxine is a thyroid hormone that controls metabolism and energy production. It has no direct role in the reabsorption of water by the kidneys.

D. Antidiuretic hormone (ADH): ADH, secreted by the posterior pituitary, increases water reabsorption in the kidney’s collecting ducts. It helps maintain fluid balance and blood osmolarity by reducing urine volume.

A. The Sternum: The sternum forms the anterior part of the thoracic cage and serves as an attachment point for ribs and the clavicle.

B. The Rib Cage: The rib cage includes both anterior and posterior components, but the posterior attachment is specifically to the vertebral column.

C. The Clavicle: The clavicle connects the upper limb to the axial skeleton at the sternum and does not form part of the posterior thoracic cage.

D. The Vertebral Column: The vertebral column forms the posterior boundary of the thoracic cage, providing attachment points for the ribs and supporting the structure and protection of the thoracic organs.