MCELLBI 32 Lecture Notes - Lecture 4: Loose Connective Tissue, Epithelium, Tight Junction

• School: Berkeley
• Department: Molecular And Cell Biology
• Course: MCELLBI 32
• Professor: Robin Ball

Document Summary

->looking at graphics and comparing to text, then drawing your own visual. Fats of course! however, there are also proteins in the membrane, as well as sugars. Tissues: groups of cells that have the same functions. 4 types of tissues: epithelial, connective, muscle, nervous. ->tight junctions: transmembrane proteins fuse adjacent epithelial cells together, which prevents molecules from passing in between cells, important for regulating what goes in and out of tisue. ->epithelial tissue is found in the junction between internal and external environment. ->we have both exocrine glands and endocrine glands (hormones) ->endocrine glands include: pancreas, adrenal, thyroid, pituitary-->all epithelial tissue. ->exocrine glands: sweat mucus, salivary, mammary, oil glands, tear glands, gall bladder. ->loose connective tissue, adipose tissue, blood, fibrous connective, tissue, cartilage, bone. ->smooth muscle: helps move food into digestive system. ->progreria caused by defective nuclear envelope-->nucleus malformed, cells can"t divide properly, patients usually die by 14 due to heart attack/old age symptoms.