HUBS 191 FINAL EXAM ACTUAL QUESTIONS AND ANSWERS 100% VERIFIED

HUBS 191 FINAL EXAM ACTUAL QUESTIONS AND ANSWERS 100% VERIFIED Name the four basic types of tissue ANS-Connective tissue, epithelial tissue, muscle tissue and nervous tissue. Why do the four types of tissues have different structures and function? ANS-They are made up of different kinds of cells. They have different things that make up the extracellular matrix. They have varying amounts of extracellular matrix. Types of connective tissue ANS-Connective tissue proper - Loose connective tissue which keeps organs and epithelia in place. - Dense connective tissue forms ligaments and tendons. - Adipose tissue (fat) and reticular connective tissue (support lymph organs like the lymph nodes) Specialised connective tissue - Blood, bone and cartilage Main role of connective tissue ANS-- Transport substances - Provide support and structure Features of epithelial tissue ANS-- Tightly packed cells - Little extracellular matrix - Forms skin and lines internal cavities - Many glands are made of epithelial tissue Features of muscle tissue ANS-- Cells are stretched or fibre-like - Main role is contraction - Allows body and its organs to move - Cardiac muscle, skeletal muscle, smooth muscle. Nervous Tissue ANS-- Made up of neurons (conduct messages) and glia (support and protect nervous system) - Main role is to transmit electrical signals allowing for communication and coordination. Cells only survive if the following conditions are meet ANS-- Enough nutrients - Correct temprature - Correct pH - Can only tolerate smal amounts of toxic substance and waste. This is why maintaining a constant internal environment (homeostasis) is so important, along with exchange of nutrients and wast across the cell membrane.