HSS 2111 Chapter Notes - Chapter 1, 2, 3: Biceps, Rectus Femoris Muscle, Extensor Digitorum Muscle
14 Jan 2017
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Document Summary
Skeleton is divided into two parts: axial (skull, spine, sternum, ribs), and appendicular skeleton (pelvis, shoulder girdle, and upper & lower limbs) Bone types 206 bones in body; and cartilage. Long shaft (diaphysis) in the middle with bumpy ends (epiphyses) i. e humerus of upper arm, femur. Flat thinner, formed by ossification of fibrous network i. e hip bone, sternum. Irregular completely unique i. e vertebrae of spine and facial bones. Short cube shaped spongey bone allowing fine gliding movement i. e bones of feet and hands. Sesamoid encased in tendon and helps improve leverage and strength of muscles it crosses i. e patella. Connective tissue ligaments, tendons, fascia, cartilage (joints, bursa, meniscus, fat pads) Nervous tissue regulate internal/external environments via neurons. Skeletal muscle structure: long, cylindrical; alternating light and dark striations. Skeletal muscle function: contractions making movement are voluntary, rapid, and forceful; maintain body posture.
