Musculature (exam 2)

Question 1

Myomeres

Answer 1

myotomes = muscle segments (ancient characteristics, lampreys have this). W shape = allows fish to move is body from side to side

Question 2

Myosepta

Answer 2

mycommata = connective tissue (separation) between segments

Question 3

horizontal and median/vertical septa,

Answer 3

Horizontal : seperates muscle massfrom up to bottom (from midline)
Vertical: separates muscle mass from left and right

Question 4

carinalis

Answer 4

carinalis muscles controls fins

Question 5

epaxial

Answer 5

above horizontal septum

Question 6

hypaxial

Answer 6

Under the horizontal septum

Question 7

Red vs. White vs, Pink muscle

Answer 7

Red (‘“slow”) muscle:
Aerobic
For marathons, not spriting. require s lots of oxygen
Found mostly along lateral line
Usually a small fraction of body mass

While (”fast”) muscle:
Anaerobic
For sprinting
Swimming speed increases = which recruits more white muscle

Pink muscles:
Intermediate in structure and function
Scattered throughout body

Question 8

red muscle

Answer 8

Red (‘“slow”) muscle:
Aerobic
For marathons, not spriting. require s lots of oxygen
Found mostly along lateral line
Usually a small fraction of body mass

Question 9

white muscle

Answer 9

While (”fast”) muscle:
Anaerobic
For sprinting
Swimming speed increases = which recruits more white muscle

Question 10

pink muscle

Answer 10

Pink muscles:
Intermediate in structure and function
Scattered throughout body

Question 11

myoglobin

Answer 11

protein that stores oxygen for fish muscles and also acts as a pigment

Question 12

Slow vs. Fast muscle

Answer 12

Slow:
Aerobic
For marathons, not spriting. requires lots of oxygen

Fast:
Anaerobic
For sprinting