Question

1. identify the structures described in column a by matching them with the terms in column b. enter the correct letters (and terms if desired) in the answer blanks. then, select a different color for each of the terms in column b that has a color - coding circle and color the structures in figure 9.2.

column a
______ 1. connective tissue surrounding a fascicle
______ 2. just deep to the deep fascia
______ 3. contractile unit of muscle
______ 4. a muscle cell
______ 5. thin connective tissue investing each muscle cell
______ 6. plasma membrane of the muscle cell
______ 7. a long filamentous organelle found within muscle cells that has a banded appearance
______ 8. actin -, myosin -, or titin - containing structure
______ 9. cordlike extension of connective tissue beyond the muscle, serving to attach it to the bone
______ 10. a discrete bundle of muscle cells
column b
a. endomysium
b. epimysium
c. fascicle
d. fiber
e. myofilament
f. myofibril
g. perimysium
h. sarcolemma
i. sarcomere
j. sarcoplasm
k. tendon

Explanation:

Each match is based on standard anatomical definitions of muscle tissue structures:

1. Perimysium is the connective tissue around a fascicle.
2. Epimysium lies just deep to deep fascia, surrounding the entire muscle.
3. Sarcomere is the basic contractile unit of muscle.
4. A muscle cell is a muscle fiber.
5. Endomysium is the thin connective tissue around individual muscle cells.
6. Sarcolemma is the plasma membrane of a muscle cell.
7. Myofibrils are banded, filamentous organelles in muscle cells.
8. Myofilaments are the actin, myosin, or titin-containing structures.
9. Tendons are cordlike connective tissues that attach muscle to bone.
10. A fascicle is a discrete bundle of muscle cells.

Answer:

1. G. Perimysium
2. B. Epimysium
3. I. Sarcomere
4. D. Fiber
5. A. Endomysium
6. H. Sarcolemma
7. F. Myofibril
8. E. Myofilament
9. K. Tendon
10. C. Fascicle