Which of the following is NOT part of the axial division of the body

A. Lateral: Lateral refers to a position away from the midline of the body. Both the patellar region (knee) and the tarsal region (ankle) are aligned along the midline of the lower limb, so lateral is not the correct directional term.

B. Proximal: Proximal means closer to the point of attachment or the trunk of the body. The patellar region is closer to the hip than the tarsal region, making proximal the correct anatomical relationship.

C. Medial: Medial describes a position closer to the midline of the body. Both the knee and ankle are centrally located along the limb, so medial does not properly distinguish their relative positions.

D. Distal: Distal refers to a point farther from the trunk or point of attachment. Since the tarsal region is farther from the hip than the patellar region, the knee cannot be described as distal to the ankle.

A. Microtubules: Microtubules are hollow protein cylinders that provide structural support, intracellular transport, and form the spindle apparatus during cell division. They are not primarily responsible for muscle contraction or amoeboid movement.

B. Microvilli: Microvilli are extensions of the plasma membrane that increase surface area for absorption, particularly in epithelial cells, and do not play a role in contraction or cell movement.

C. Microfilaments: Microfilaments are thin, actin-based protein filaments that support cell shape, enable muscle contraction, contribute to cleavage furrow formation during cytokinesis, and facilitate amoeboid movement, making them essential for dynamic cellular processes.

D. Intermediate filaments: Intermediate filaments provide tensile strength and structural stability to cells but do not actively participate in muscle contraction, cleavage furrow formation, or motility.