Use the key to classify each of the following described tissue types into one of the four major tissue categories. Key: connective tissue epithelium muscle nervous tissue  _________    (1) Tissue type composed largely of nonliving extracellular matrix; important in protection and support  _________    (2) The tissue immediately responsible for body movement  _________    (3) The tissue that enables us to be aware of the external environment and to react to it  _________    (4) The tissue that lines body cavities and covers surfaces

Video transcript

Hi, everyone. Let's look at our next question. The different tissues in the body have their own respective functions. Which of the following is the main function of the skeletal muscle tissue. Choice, a transmission of electric signals in the body. B provide structural support. C coordinate the rhythmic contraction of the heart or D helps generate movement in the body. So we might see the word skeletal and kind of zoom in on structural support. But let's notice that it's asking about specifically skeletal muscle tissue. So not the skeleton itself, but the muscle tissue and skeletal muscle tissue would be muscles attached to the skeleton. So their main function will be choice D helps generate movement in the body by generating forces on the skeleton and therefore generating voluntary movement. So structural support, of course, would if we're talking about what type of tissue that would be connective tissue, providing structural support in the body, but not what we're looking for. And choice. A transmission of electrical signals. Well, we think where do we think of electrical signals being generated in the brain through the nervous system? So that is nervous tissue that generates electrical signals but not our answer here. And finally choice C coordinate the rhythmic contraction of the heart. This is another type of muscle tissue. This would be the cardiac muscle tissue. So another type of muscle tissue but different function. So again, the main function of skeletal as of tissue, choice D helps generate movement in the body. See you in the next video.