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Musculoskeletal System — Ch.16 - Coggle Diagram
Musculoskeletal System — Ch.16
Skeletal System
— support, protection, mineral storage, hematopoiesis — pp. 420–424
Endoskeleton
internal bone/cartilage framework; grows with body — pp. 420–421
Axial Skeleton
skull, vertebral column, thoracic cage; protects central organs — pp. 420–422
Skull
protects brain; houses sensory cavities — pp. 420–421
Vertebral Column
Supports trunk; protects spinal cord; cervical/thoracic/lumbar regions — pp. 421–422
Thoracic Cage
ribs + sternum; protects heart & lungs; muscle attachments — pp. 421–422
Appendicular Skeleton
limbs and girdles for movement — pp. 422–424
Pelvic Girdle
supports lower limbs; protects pelvic organs — pp. 422–423
Joints
connections between bones; fibrous, cartilaginous, synovial (synovial = freely movable) — pp. 423–424
Skeletal Muscle
voluntary, striated; attaches to bone via tendons — pp. 426–427
Muscles
produce movement, posture, heat; composed of muscle fibers — pp. 426–428
Cardiac Muscle
involuntary, striated; intercalated discs; heart contraction — pp. 427–428
Smooth Muscle
involuntary, non‑striated; in walls of organs & vessels — pp. 427–428
Myofilaments
actin & myosin; crossbridge cycle uses ATP — pp. 428–430
Sarcomere
functional contractile unit (Z‑line to Z‑line); shortens during contraction — pp. 428–430