Muscular system

Question 1

3 types of muscle

Answer 1

cardiac, smooth and skeletal

Question 2

4 features of a muscle

Answer 2

contractility, excitability, extensibility, and elasticity

Question 3

cardiac muscle

Answer 3

straited
1 nucleus
intercalated disk between cells for conduction

Question 4

smooth muscle

Answer 4

walls of hollow organs
no striations
involuntary

Question 5

skeletal muscle

Answer 5

attached to skeleton
voluntary
straited and 1 nucleus

Question 6

structure of skeletal muscle

Answer 6

myofibrils- (actin and myosin)
encased in sarcolemma making up a single muscle fiber
bundles of muscle fibers make fasicles covered by perimysium containing endomysium
muscle belly is covered in epimysium

Question 7

sarcomere unit

Answer 7

functional unit of skeletal muscle
actin and myosin

Question 8

Sliding filament theory

Answer 8

sarcomere shortens.
calcium uncovers sites on actin for myosin to bind

Question 9

effects of massage on muscular system

Answer 9

increases nurtishment and development by enhancing the delivery of oxygenated blood and removal of cellular waste

Question 10

Neuromuscular junction

Answer 10

axonal terminal, synaptic cleft and motor end plate