When walking down stairs or a steep hill, the knee is flexed. Which structure prevents the tibia from sliding too far posteriorly, and the femur from sliding too far anteriorly?

A: patellar ligament
B: ACL
C: PCL
D: medial meniscus
E: lateral meniscus


C: PCL

Anatomy & Physiology

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A sickle-shaped vertical partition that divides the left and right cerebellar hemispheres is the

A.  diaphragma sellae. B.  falx cerebelli. C.  tentorium cerebelli. D.  superior sagittal sinus. E.  falx cerebri.

Anatomy & Physiology

The pterygopalatine fossa communicates with the nasal cavity via the

A. foramen ovale. B. pterygomaxillary fissure. C. inferior orbital fissure. D. sphenopalatine foramen. E. incisive canal.

Anatomy & Physiology

The figure illustrates a detailed drawing of the neuromuscular junction. What does "A" represent?

A. synaptic vesicles B. synaptic cleft C. sarcolemma D. presynaptic terminal E. postsynaptic membrane

Anatomy & Physiology

The thymus is ________ to the sternum

A) lateral B) superficial C) deep D) anterior

Anatomy & Physiology