Muscle Tissue & Skeletal Muscle Flashcards
What are the functions of muscle?
The function of muscle is movement.
What are the functional characterisitics of muscle?
The function characteristics are…
- posture
- joint stability
- heat production
- excitability
- contractility
- extensibility
- elasticity
Define:
Fascia
Fascia is CT; surrounds and protects the muscle
- Epimysium
- Perimysium
- Endomysium
Define:
Tendons
Tendons are CT connecting muscle to bone
Define:
Aponeurosis
Aponeurosis is broad, sheetlike tendon connecting muscle to muscle
What is the microscopic anatomy of a muscle?
The microscopic anatomy of a muscle is…
- Muscle
- Fascicles
- Muscle Fibers (cells)
- Myofibrils
- Myofilaments
What is the microscopic anatomy of muscle fiber?
Microscopic anatomy of muscle fiber is…
- Individual cell
- Multinucleated
- Sarcolemma (T-tubule)
What is the microscopic anatomy of myofibrils?
Microscopic anatomy of myfibrils are…
- Sarcomere
- A band
- I band
- Z disc
- H zone
- M line
What is the microscopic anatomy of myofilaments?
Microscopic anatomy of the myofilaments is…
- Actin
- Myosin
- Elastic fibers
What two places are muscles at least attached to?
Muscles’ two attachments are the origin and the insertion
Where does the origin lie compared to the insertion?
The origin is proximal to the insertion
Define:
Agonist
Agonist defines as prime mover
Define:
Synergist
Synergist is defined as same movement
Define:
Antagonist
Antagonist is defined as opposite
Define:
Fixators
Fixators is defined as immobilize a bone
What are the two types of location?
The two types of location are…
- Supraspinatus
- Pterygoids
What are the two types of shape?
The two types of shape are…
- Deltoid
- Trapezius
What are the two types of direction of fibers?
The types of direction of fibers are…
- Oblique
- Rectus
What are the relative sizes of muscle?
The relative sizes of muscle are…
- Maximus
- Medius
- Minimus
- Longus
- Brevis
What are the two types of origin?
The two types of origin are…
- Biceps
- Triceps
What are the two types or location (origin & insertion)?
The two types of location are…
- Coracobrachialis
- Brachioradialis
What are the two types of action?
The two types of action are…
- Adductors
- Extensors
What are the facial muscles?
The facial muscles are…
- Occiptofrontalis
- Orbicularis oculi
- Orbicularis oris
- Buccinator
- Zygomaticus
What are the muscles that move the jaw?
The muscles that move the jaw are…
- Temporalis
- Masseter
- Lateral pterygoid
- Medial pterygoid
What is the origin of the Temporalis?
The origin of the temporalis is the parietal bone.
What is the insertion of the temporalis?
The insertion of the temporalis is the coronoid process of mandible.
What is the action of the temporalis?
The temporalis elevates, retracts, assists in side to side of mandible
