5 Written Questions

1. flat CT sheets that attach muscle to other muscles or bone
2. actin only. contains z line
3. in smooth muscle
   pattern of repeated contractions
   result from self excited fibers that spread to others
4. desmosomes
   gap junctions
5. muscle cell membrane and basal lamina

5 Matching Questions

1. skeletal muscle cells
2. intercalated disc in cardiac muscles
3. sarcoplasm
4. multiunit arrangement
5. endomysium

1. a cytoplasm of skeletal muscle cells
2. b delicate, loose CT, investing each muscle fiber/cell (within pep pizza)
3. c muscle fibers poorly arranged
   function as individual fibers
   found in walls of blood vessels and iris of eyes
   contracts to nerve impulses and hormones
4. d long. multinucleated, cylindrical cells with periphery nuclei
5. e connections btw adjacent cardiocytes. occur at the z-lines of the cardiac muscle sarcomere

5 Multiple Choice Questions

1. smallest contractile/functional unit of a skeletal muscle cell. extends from z-line to z-line. in myofibrils
   1. sarcoplasm
   2. sacrotubules
   3. sacromeres
   4. sarcolemma
2. cardiac muscle cells
   1. sarcolemma
   2. sacrotubules
   3. cardiocytes
   4. sacromeres
3. myofibrils - actin and myosin
   muscle fiber
   muscle fasciculi - several muscle cells
   skeletal muscle
   1. hierarchical arrangement
   2. multiunit arrangement
   3. terminal cisternae
   4. visceral arrangment
4. small in size and typically only exhibits a single, centrally-located nucleus
   1. pattern of sarcomeres in smooth cardiac and skeletal muscles
   2. location of smooth muscle
   3. cardiac muscles in comparison to skeletal muscles
   4. Cardiac muscle is innervated by what
5. sarcomeres
   1. smooth muscles have an absence of what to make a banding pattern absent in these musles
   2. smooth muscle cell characteristics
   3. smooth muscle cells characteristics
   4. smooth muscles respond to what 2 chemicals

5 True/False Questions

1. contents of A-band (dark area) → actin only. contains z line

   True        False

2. fascia → two terminal cisternae on either side of a T tubule

   True        False

3. location of smooth muscle → walls of all blood vessels but not in the heart
   walls of hollow organs
   walls of respiratory, circulatory, digestive, and reproductive

   True        False

4. Myofibrils → muscle cells

   True        False

5. T tubules → small tubular system in muscle cells

   True        False