T7L1 Joints and Muscles Flashcards
What is a joint
An articulation - a point where two bones meet allowing movement of some sort
Name 9 parts of a joint
Tendon
Muscle
Ligament
Synovial Membrane
Synovial fluid
Bone
Cartialage
Pad of Cartilage
Fibrous capsule
Role of tendon
Muscle to bone
Role of muscle
Works antagonistically to allow movement
Role of ligament
Bone to bone
Role of synovial membrane
Secrretes synovial fluid
Role of synovial fluid
Lubricant
Role of cartilage
Absorbs shock and synovial fluid
Role of pad of cartilage
Additional protection
Role of fibrous capsule
Encloses whole joint
Name five types of joint
Ball and socket
Gliding
Hinge
Pivot
Saddle
Name three types of muscle
Skeletal
Smooth
Cardiac
Where is skeletal muscle found
Arms and legs
Where is smooth muscle found
lining of internal muscles
Where is cardiac muscle found
Ventricle and atrium walls
Describe role of skeletal muscle
Essential for movement and maintaining posture
Which type of muscle do you have conscious control of
Skeletal
Describe heart muscle
Does not become fatigued
Contracts rhythmically
MYOGENIC
Define myogenic
Where electrical impulses in cardiac tissue do not require a stimulus
Name two types of skeletal muscle
Slow twitch and fast twitch
Describe slow twitch muscle
Used for endurance
Works for long periods of time
Contain many mitochondrion
High levels of myoglobin
Slow to fatigue and generate ATP
Describe fast twitch muscle
Used for short bursts of energy
Quick and powerful contractions
Respire anaerobically
Describe the relationship between phosphocreatine in muscles
Fast twitch fibres
Store large amount of phosphocreatine in the cytoplasm
Which provides a quick source of ATP during exercise
Why does fast twitch muscle fatigue quickly
Lactate is produced as a by-product of anaerobic respiration
