What are 8 criteria for smooth muscles?
1 ) Found: bladder, intestines, and vessels 2 ) Function: to pump urine, food, and blood 3 ) # of Nucleus: 1 4 ) NOT BRANCHED 5 ) NO INTERCALATED DISCS 6 ) NO STRIATION 7 ) Random Actin/myosin Arrangement 8 ) Shape is spindle
What are 8 criteria for Cardiac muscles?
1) Found in heart 2) function to pump blood 3) few nuclei 4) It is BRANCHED 5) Has intercalated discs 6) Has striation 7) Linear actin/myosin arrangement 8) Myotube shape
What are 8 criteria for Skeletal muscles?
1) found on bone 2 function is to move bones 3) 100s of nuclei 4) Not branched 5) No intercalated discs 6) Has striations 7) Linear actin/myosin arrangement 8) myotube shape
What is the skeletal muscle wrapped in?
epimysium
What is the fascicle wrapped in?
perimysium
What is the muscle fiber wrapped in?
endomysium
What is the myofibril wrapped in?
sarcoplasmic reticulum
What are tight junctions?
The connection of muscle cells glued together by proteins
What makes up intercalated discs?
Fibrous protein (actin) and myosin
What are the leaky channels in between muscle fibers called?
Gap junctions
What does the contraction of muscles?
Myofibril