Muscle Stuff 💪

Question 1

Muscle tissue types

Answer 1

Skeletal muscle
Smooth muscle
Cardiac muscle

Question 2

Skeletal muscle characteristics

Answer 2

Long cylindrical fibers that are striated and multinucleated

Responsible for moving skeleton and thermoregulation

Question 3

Cardiac muscle tissue characteristics

Answer 3

Has visible striations and intercalated disks between cells (involuntary control)

In the heart

Question 4

Smooth muscle tissue characteristics

Answer 4

Cells are short and do not have visible striations (involuntary control)

Found in internal organs

Question 5

Functions of skeletal muscle

Answer 5

Body movement
Posture
Protection and support
Regulating elimination of materials
Heat production

Question 6

Cross bridge cycling steps

Answer 6

Crossbridge formation
Power stroke
Release of myosin head
Reset myosin head

Question 7

Sarcomere shortening

Answer 7

Needs Ca+2 and atp
Shortens when a discs move together
H zone and I band disappear
THIN AND THICK FILAMENTS REMAIN SAME LENGTH BUT SLIDE PAST EACHOTHER