Muscles

Question 1

Smooth muscle

Answer 1

• centrally located nuclei (cigar shaped nucleus)
• no striations
• involuntary muscle
• does not branch

Question 2

Cardiac muscle

Answer 2

• involuntary muscle
• centrally located nuclei
• has striations
• cells/fibers branch and interconnect
• cardiac muscle fibers are composed of individual cells and connected by intercalated disc

Question 3

Skeletal muscle

Answer 3

• does not consist of individual cells
• multinucleate muscle fibers
• contains motor-end plates and elation can be found
• nucleus placement is under cell membrane (looks like it’s on the outside)
• does not branch and has striations
• the lines are called axons

Question 4

Intercalated discs

Answer 4

• the endings of the individual cardiac muscle cells which are joined end-to-end to form the muscle fibers
• found in the longitudinal sections

Question 5

Motor-end plates

Answer 5

• the contacts made by the terminal branches of the axons, of a motor neuron, with the muscle
• secretes acetylcholine

Question 6

Longitudinal fibers

Answer 6

• are long and and vertical in the skeletal muscle

Question 7

Oblique and transverse fibers

Answer 7

• are a part of the skeletal muscle

Question 8

Endomysium

Answer 8

• The fine network of connective tissue blinding the fibers together in the skeletal muscle