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Skeletal muscles are stimulated to contract by nerves and act as effectors (A-level only)
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Muscles as effectors and antagonistic pairs

Muscles as effectors and antagonistic pairs

Elbow joint diagrams showing flexion with the biceps shortening and extension with the triceps shortening

Skeletal muscles are effectors because motor neurones stimulate them to contract. They attach to bones by tendons, so contraction pulls on bone and produces movement at a joint.

Skeletal muscles are stimulated to contract by nerves and act as effectors (A-level only) Lesson

  1. A Level
  2. /Biology
  3. /Skeletal muscles are stimulated to contract by nerves and act as effectors (A-level only)

Step-by-step lessons on AQA A Level Biology Skeletal muscles are stimulated to contract by nerves and act as effectors (A-level only), covering Skeletal muscles are stimulated to contract by nerves and act as effectors (A-level only). Each one builds up to exam-style questions. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.

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