BIOL 1117 Study Guide - Midterm Guide: Bone Marrow, Bone, Hyaline Cartilage

• School: Northeastern University
• Department: Biology
• Course: BIOL 1117
• Professor: Christopher Richardson

Document Summary

Epidermis: keratinized stratified squamous epithelium dead cells at the surface packed with tough protein: keratin; lacks blood vessels. Hypodermis: another connective tissue layer below the dermis (subcutaneous tissue): pads body; binds skin to underlying tissues subcutaneous fat. Target for subcutaneous injections because it is highly vascularized an absorbs drugs quickly. Bone (osseous tissue): connective tissue with the matrix hardened by calcium phosphate and other minerals (composite of calcium phosphate as main mineral element and collagen as main organic element) Shapes of bones long bones: longer than wide; muscles act on rigid levers. Clavicle of the shoulder, the humerus of the arm, the radius and ulna of the forearm, the femur of the thigh, the tibia and fibula of the leg, the metacarpals, metatarsals and phalanges of the hands and feet. Structures: epiphyses and diaphysis; compact and spongy bone; marrow cavity; articular cartilage; periosteum flat bones (not perfectly flat, slightly curved): protect soft organs; curved but wide & thin.