16 - Muscle Anatomy Flashcards
4 types of tissue?
epithelia
connective
muscle
nervous
divisions of muscle?
striated - skeletal and cardiac
non striated - smooth
what is the nerve entry point?
where nerve enters muscle
centre of muscle
site of aterial supply and venous drainage
niocitinic receptors
importance of skeletal muscle?
- joint stability
- posture
- heat gen
- movement
hierarchy of how a muscle is built up?
myofibril
myocyte [single muscle cell/fibre]
muscle fasscile [many myocytes]
muscle [fascicles grouped]
tissue sheaths that make up muscle?
ENDOMYSIUM - around myoctes
PERIMYSIUM - around fassicle
EPIMYSIUM - around muscle
describe a tendon?
strong band of fibrous connective tissue
3 ways skeletal muscle attaches to bone/skin?
fleshy insertions
- direct attachment to target
Aponeurosis
- flat fibrous connective tissue at end of a muscle
Tendons
- thick fibrous conn tissue @ end of muscle
how to decide whether a muscle fibre belong to fast intermediate or slow twitch?
- how quickly they develop force
- long to relax
where is smooth muscle found?
- organs
- blood vessels
- GITract
features of smooth muscle?
- contractions slow
- resis to fatigue
- invol
sketch cardiac muscle with features included?
striations
branching
intercolated disc
central nucleus
understand myofibril anatomy?
/
what is sarcomere?
dist between two z discs
