Class Summary - Today we finished up talking about connective tissue. We talked about two types of bone; spongy and compact. Compact bone is easy to identify because it has concentric circles. It is located in the outer portion of long bones. Spongy bone is located in the ends of long bones and is lighter than compact bone. Today we discussed muscle tissues. Blood is also a type of connective tissue suspended in plasma. It is composed of formed elements (red blood cells, white blood cells and platelets. Blood is formed in the red bone marrow. Blood's extra cellular matrix (plasma) is made not by the cells in the tissue but by surrounding organs. We addressed the 3 main types of muscle tissues and their structure / characteristics. Skeletal muscle is attached to the bones by tendons. Skeletal muscle is cylindrical and has more than one nuclei. It is striated and has strong voluntary contractions. Smooth muscle lines hollow organs. It is involuntary and spindle shaped. It only has one nucleus and is not striated. Cardiac muscle is found in the heart. It is branched, striated, and has only one nucleus. It is involuntary.
Homework - Test is scheduled for Friday of Next Week
Objectives - Students will be able to identify muscular tissue. Students will be able to identify bone and blood tissue.