Do Now: On the post it note you received write 2-3 questions you have about the muscular system. This could include diseases or certain muscles you want to know more about. Today’s Lesson Topic: Muscle Tissue

Class Updates I missed all your beautiful faces! I’m still grading the tests.. If you need to make up a quiz/the test a great time to do that is during tutoring Need to be able to advocate for yourselves Remember to received credit for your Do Now’s you need a stamp in your tracker. I made hole punches so you won’t lose it. You have no excuse. You have a Do Now section of your binder.

Class Updates Continued… I will be doing two shout outs and 2 drawings this week because I was gone Friday Also, we have one week less than I originally thought so we have to work extra hard but if we do we MAYBE able to do our first dissection before winter break.

Today’s Objective You will be able to observe, draw, and/or label the different types of muscle tissues, noting the function and anatomical differences of each type. We will also be learning some new biomedical terms.

Biomedical Terms -eal –Pertaining to Medi- –middle Mano- –One; singular Dorsi- –Back Peri- –About or around

Try and Break These Words Apart... Frist try these on your own, just like we’ve done before use a line. Medious Psuedodorsal Perial Monous Pericardial

Intro Muscle is a tissue specialized to produce movement of a body part or an organ’s contents, such as blood and food. Its cells convert the chemical energy of ATP into the mechanical energy of motion and exert a useful pull on other cells or tissues.

Learning Check… Does anyone know what ATP is?

Skeletal Muscle defined as voluntary striated muscle that is usually attached to one or more bones –usually called muscle fibers or myofibrils. fibers packed with protein microfilaments that overlap each other in such a way as to produce alternating light and dark bands, or striations. –Because of these striations, skeletal muscle appears striped

Skeletal Muscle, cont’d only muscle tissue that is voluntary because it is usually subject to conscious control, although sometimes it is activated by our reflexes. cells have many nuclei, so we call it multinucleate located in your skeletal muscles- the ones that attach to your bones to create organismal movement. Key words for skeletal muscle are skeletal, striated, multinucleate, and voluntary.

Skeletal Muscle Tissue: Draw this best you can

Cardiac Muscle also striated involuntary- not normally under conscious control. Its cells are not fibrous in shape. They only have one nucleus, so we call the cardiac muscle cells uninucleate. It is only found in one place in the body- the heart. The key words for cardiac muscle are cardiac, striated, uninucleate, and involuntary.

Cardiac Muscle: Draw this the best you can…

Smooth Muscle no striations in smooth muscle involuntary located mainly in the walls of hollow visceral organs such as the stomach, urinary bladder and respiratory passages. It propels blood through our blood vessels, which are also made from smooth muscle. uninucleate, like cardiac muscle. Key words for smooth muscle are visceral, nonstriated, involuntary, and uninucleate.

Smooth Muscle: Draw the best you can

CFU: ID the Muscle Tissue A B C

Chart: Practice make a chart on an even page of your notebook, the column headings: Characteristic, Skeletal, Cardiac, and Smooth the row headings (under characteristics): body location, cell shape and appearance, regulation of contraction. complete the chart for the different muscle types.

CFU: White Board Time I will read description/key characteristics and you will write on your white board if it skeletal muscle, cardiac, or smooth Only raise the whiteboards at the end of the countdown..

Individual Practice This is worth a grade…

Be Prepared… For your next biomedical term quiz next time Its only on the five words we covered.