SL Students are working on your EE’s this week. HL’s, take care to understand this completely – it’s not as easy as it looks!

Essential Biology 11.2: Muscles and Movement.

Click4Biology page here.

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Joints and the Skeleton:

Knee: rotary hinge joint

Hip, shoulder, ankle, foot, knee from Mid South Orthopedics

Inside the knee from choroknamu

Muscles and Contraction:

Full tutorial from Brooks Cole

Great explanation from Campbell Biology

And another from McGraw Hill

Actin and myosin from Blackwell

Can you explain the steps using all the key terms?

Neuromuscular junction:

McGraw Hill – Freeman – Blackwell