IB Biology Topic B3.3 Muscle and Motility (HL) covers syllabus content as part of Topic B3: Organisms under Theme B: Form and Function. Use these notes, questionbank, videos, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
B3.3 Muscle and motility is part of Topic B3: Organisms under Theme B: Form and Function.
What this topic covers
B3.3.1 Adaptations for movement as a universal feature of living organisms
B3.3.2 Sliding filament model of muscle contraction
B3.3.3 Role of the protein titin and antagonistic muscles in muscle relaxation
B3.3.4 Structure and function of motor units in skeletal muscle
B3.3.5 Roles of skeletons as anchorage for muscles and as levers
B3.3.6 Movement at a synovial joint
B3.3.7 Range of motion of a joint
B3.3.8 Internal and external intercostal muscles
B3.3.9 Reasons for locomotion
B3.3.10 Adaptations for swimming in marine mammals