Muscle Tissue

Question 1

Skeletal Muscle characteristics and function

Answer 1

Multinucleated, striated and voluntary for motion, posture, protection

Question 2

Straition

Answer 2

Organised myofibrils that span muscle cell

Question 3

Sacromere

Answer 3

Unit of myofibrils (Myofilament unit)

Question 4

Myofilament components

Answer 4

A and I band, H zone, M line, Titan filament, Z disc

Question 5

Sacroplasm

Answer 5

Cytoplasm of muscle cell

Question 6

A band

Answer 6

Spans each end of a thick filament

Question 7

I band

Answer 7

Thin filaments that spans from sarcomeres

Question 8

H zone

Answer 8

Middle area where there’s no filament overlapp

Question 9

M line

Answer 9

Holds thick filaments in orientation and passes through the middle of a sacromere

Question 10

Z disc

Answer 10

Junctions between sacromeres

Question 11

Titan filament

Answer 11

provides tension on fibres

Question 12

Skeletal muscle CT - Epimysium

Answer 12

Envelopes anatomical muscle

Question 13

Skeletal muscle CT - Perimysium

Answer 13

surrounds subunits of muscles

Question 14

Skeletal muscle CT - Endomysium

Answer 14

Surrounds muscle fibres

Question 15

Cardiac muscle

Answer 15

Straited, single nucleated, involuntary containing desmosomes and gap junction for strong bond and communication - In Heart

Question 16

Intercalated disk

Answer 16

In cardiac muscle made of junctions

Question 17

Smooth muscle

Answer 17

No straited, single nucleated, involuntary spindle shaped to surround circular objects

Question 18

Dense body

Answer 18

Button structure binded by intermediate filaments to bulge smooth muscles during contraction