Functions and Junctions
This is function is how we get around
What is movement?
The type of fibrous connective tissue that makes up fascia
What is disorganized?
It is the plasma membrane of a muscle fiber
What is the sarcolemma?
The term for a muscle that contributes the most to a specific movement
What is the agonist or prime mover?
It is the most superficial prime mover for elbow flexion
What is the biceps brachii?
This function keeps us upright
What is posture?
A cord of organized fibrous connective tissue that attaches muscle to bone
What is a tendon?
It is the ER of a muscle fiber
What is the sarcoplasmic reticulum?
These muscles assist the prime mover(s)
What are synergists?
This is the prime function of the flexor carpi radialis
What is wrist flexion?
This by-product of contraction is important during winter
The connective tissue covering a muscle fascicle
What is the perimysium?
It is the thick myofilament
What is myosin?
Muscles in this role act as a brake to control the motion
What are antagonists?
Both the gastrocnemius and the soleus are prime movers for this action
What is plantar flexion?
The junction where the skeletal muscle turns into fibrous connective tissue
What is musculotendinous junction?
The corkscrew-shaped protein molecules that make up collagen.
What is tropocollagen?
This is the zigzagged border between two sarcomeres
What is the Z line?
The subclavius and subscapularis play this role during shoulder flexion and extension
What are the fixators or stabilizers?
What is the deltoid?
The anatomic name for the junction between skeletal muscles and bone
What is the tenoperiosteal junction?
A flat sheet of connective tissue that attaches muscle to bone
What is an aponeurosis?
The dark area of the sarcomere is called this
What is the A band?
The type of contraction used by an antagonist
What is an eccentric contraction?
This trunk muscle serves as a prime mover in both hip and trunk flexion
What is the illiopsoas?