VETA 101 - Myology Flashcards
Musculus
Little mouse
The muscular system is composed of cells that possess properties such as?
Contractility
Conductivity
The functional cell unit is known as?
Muscle fiber
Functions of muscles?
Locomotion
Respiration
Circulation
Alimentation
Non-striated, plain, involuntary, white or visceral muscles
Smooth muscles
Cardiac muscle
Striated involuntary
Striated voluntary
Skeletal
The myofilament of the skeletal muscle is composed of?
Proteins (myosin) and Actin (thin)
Responsible for tonic sustained contraction over relatively long periods but of little force.
Dark fibers (red)
It contracts physically and the amplitude of contraction building to a peak and being followed by a contraction.
Pale fibers (white)
Thin membrane that surrounds each muscle fiber.
Sarcolemma
It’s a delicate c.t. surrounding the myofibrils
Endomysium
Connective tissue that surrounds or enclose the fasiculus
Perimysium
It wraps a group of fascicles which delimits one muscle from one another or fuses with the intervening fascia. This is the externa sheath of the entire muscle.
Epimysium
What is the expanded portion of a muscle?
Belly
Minor divisions of origins or insertions.
Slips
Cord-like connective tissue?
Tendon
Flat sheet-like connective tissue?
Aponeurosis
The more fixed point of muscle attachment is called?
Origin
The more movable point of attachment?
Insertion or termination
These are simple connective tissue sacs that contain synovial fluid that serves to reduce friction.
Bursa
Double-layered elongated sacs containing synovial which wraps tendons as they pass through osseous or fibrous grooves.
Synovial tendon sheaths
Inner layer of the tendon sheath is fused with the tendon and attach to the wall of the passageway and is known as?
Mesotendon
A connective tissue that separate and binds each muscle into position. It varies from dense to loose connective tissue.
Fascia
