MDCAT 2026 MCQs

Calcium changes the troponin-tropomyosin complex.
Tropomyosin moves away from actin binding sites.

Lymphatic capillaries collect excess interstitial fluid.
Lymph eventually drains into large veins.

Calcium changes the troponin-tropomyosin complex.
Tropomyosin moves away from actin binding sites.

Smoke irritates airways and impairs ciliary beating.
Mucus and microbes are then cleared less effectively.

Arthritis causes joint pain, stiffness and impaired movement.
Different forms have inflammatory or degenerative causes.

Smoke irritates airways and impairs ciliary beating.
Mucus and microbes are then cleared less effectively.

Barrier protection reduces exchange of infected body fluids.
Testing and informed prevention are also important.

Chondrocytes occupy spaces called lacunae in cartilage.
They maintain the extracellular matrix.

Chondrocytes occupy spaces called lacunae in cartilage.
They maintain the extracellular matrix.

Chondrocytes occupy spaces called lacunae in cartilage.
They maintain the extracellular matrix.

Osteoclasts break down mineralized bone.
Their activity participates in remodeling and calcium balance.

Osteoclasts break down mineralized bone.
Their activity participates in remodeling and calcium balance.