Skeletal and Muscular Systems
HomeworkELARomeo and Juliet front and
backGeometryworksheetBiologyNervous System Practice
1
Assign Yourself: Muscular/Skeletal System PracticeDo Now:6E
Review, make sure you are using RUBIES!!
Skeletal and Muscular Systems
What is the function of the muscular system?Muscles contract
(get shorter) and extend (get longer) to help you move
Processing Piece:Look at the picture below. Label one part
muscle contracts and the other part muscle extends.
What are 3 types of muscle tissue?Skeletal muscleVoluntary (you
choose to move it)Striated (has stripes when you look at it under
the microscope)Attached to bonesExample: arm muscles (biceps and
triceps), leg muscles (quadriceps and hamstrings), ab muscles,
etc.
What are 3 types of muscle tissue?2) Smooth muscleInvoluntary
(you cant control its movement)Not striated (doesnt have stripes
when you look at it under the microscope)Found in internal
organsNot attached to bonesExample: muscles in the esophagus,
stomach, intestines, and other parts of the digestive tract
What are 3 types of muscle tissue?3) Cardiac muscleInvoluntary
(you cant control its movement)Striated (has stripes when you look
at it under the microscope)Found only in the heart
Processing PieceDraw a picture to illustrate each type of muscle
tissue.List the characteristics of each below your drawing.
Why are some muscles striated?Inside the cells of striated
muscles, there are overlapping filaments (strings) of thick and
thin fibers called actin and myosin.
How do muscles contract and extend?Myosin proteins (which look
like hands) pull on the actin fibersThis makes the muscle cells
contract (get shorter)
Processing PieceDraw a picture to illustrate how actin and
myosin fibers work
How Actin and Myosin Make Muscles Contract
What is the function of the skeletal system?Provide structure
for the bodyGive muscles something to attach to and pull onProtect
other organs (ribs protect chest organs, and skull protects
brain)Produce new blood cells from bone marrow
What are 2 types of bone tissue?Compact bone: hard, dense, heavy
bone found on the outside of bonesSpongy bone: softer bone, full of
blood vessels, found of the inside of bones
What is bone marrow?Soft tissue found of the inside of most
bonesFull of blood vesselsProduces new blood cellsPart of spongy
bone tissue
What connects muscles and bones?Ligaments connect bones to
bones.Tendons connect bones to muscles.
Processing PieceWrite tendon and ligament and draw a picture to
illustrate each.
Exit TicketWhich type of muscle is found in your arm?your
stomach?your heart?What do the following words means?StriatedExtend
ContractWhat are the functions of the skeletal system?Where are new
red blood cells made?
Exit TicketWhich type of muscle is found in your arm?
skeletalyour stomach? smoothyour heart? cardiacWhat do the
following words means?Striated = stripesExtend = longerContract =
shorterWhat are the functions of the skeletal system? Protection,
structure, red blood cells, movement, supportWhere are new red
blood cells made? Bone marrow
WW/Detention walk
over:MarkAngieJoseFernieNoeBriceidaMigdaliaAlexis
Assign Yourself: BWA ReviewDo Now:Please read the first page of
the lab dissection quietly
