题目

2025FA-HES-207-001 E. Movement Analysis - LE

多项选择题

Select all agonist knee joint muscles active (contracting) from A to B.

选项

A.rectus femoris

B.biceps femoris

C.vastus medialis

D.vastus lateralis

E.semimembranosis

F.semitendinosus

G.vastus intermedius

H.sartorius

I.poplitius

J.gracilis

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标准答案

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思路分析

To determine which muscles are agonists for knee joint movement between positions A and B, we need to identify which muscles are actively contracting to produce knee action in that range. Option 1: rectus femoris — This muscle is one of the quadriceps, crossing both the hip and knee joints, and it contributes to knee extension. It would be an agonist in a knee-extending motion from A to B. Option 2: biceps femoris — This is a hamstring muscle that primarily causes knee flexion (an......Login to view full explanation