Mascular System Flashcards
What is the characteristic of muscle tissue
Its ability to contract
What are the types of muscles
State the site - contraction - striations - nerve supply- muscle cell of skeletal muscle.
Attached to bone
Voluntary
Striations present
Somatic nerve
Multinucleated with peripheral nuclei
State the site - contraction - striations - nerve supply- muscle cell of smooth muscle
In the wall of blood vessels and viscera
Involuntary
Striations absent
Autonomic nerve
Spindle shaped with single nucleus
State the site - contraction - striations - nerve supply- muscle cell of. Cardiac muscle
Myocardium of heart
Involuntary
Present but less than skeletal
Autonomic nerve
Branch and fuse together with single nucleus
What are some types of muscle attachment?
Attachment to bone- to fibrous raphie (band or septum of fibrous tissues )- attachment to skin (facial muscles) - to cartilage (larnyx)
What are the 2 types of arrangement of fibers in muscles?
Parallel _pennate - non-penate
What muscles have their fibers lie parallel to the line of pull.
1) strap like muscles - strap like muscles with tendons intersections- quadrilateral muscles- fusi form muscles
What are the types of pennate muscles (feather like)
Uni pennate - bipennate - multipennate - circumpennate
What are the type of non-pennate fibers?
Triangle muscles inbrain _ spiral muscles in radius & ulna_ cruciate muscles in brain_ circular muscles in mouth
Muscle trophy occurs in?
Immobilization after fracture - disease of the muscle- injury of the motor nerve of the muscle - injury of spinal cord - affection of higher centers (brain)
